MALICIOUS
538
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains JavaScript that utilizes the `exportDataObject` function, which is known to be used in conjunction with PDF exploits to launch external applications. Heuristics indicate this is related to CVE-2023-26369 and CVE-2010-1240, and the sample is detected as Pdf.Dropper.Agent-7142680-0 by ClamAV. The embedded JavaScript attempts to launch `cmd.exe` with parameters that suggest it will execute a dropped file named 'blague.pdf', likely a malicious executable.
Machine Learning
- Nyx PDF Classifier malicious score 0.9913
Heuristics 14
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Adobe Reader Launch action command execution critical CVE exact CVE_2010_1240PDF uses the Adobe Reader/Acrobat Launch action pattern associated with CVE-2010-1240: cmd.exe is invoked with attacker-controlled parameters, paired with an embedded/exported payload.
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TrueType bitmap font + active content — CVE-2023-26369 related high PDF_CVE_2023_26369_RELATEDPDF embeds a TrueType font with bitmap tables (EBDT/sbix/CBDT) alongside exploit delivery indicators — CVE-2023-26369 exploits the sfac_GetSbitBitmap function in Adobe's libCoolType for arbitrary code execution. This CVE was actively exploited in the wild, but this rule does not validate the malformed EBLC/EBDT primitive.
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Launch action critical PDF_LAUNCHPDF contains a /Launch action whose target is an executable, URL, or UNC path — can start an external application
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/Launch action target: cmd.exe critical PDF_LAUNCH_COMMANDPDF /Launch action specifies an executable target with parameters '/Q /C %HOMEDRIVE%&cd %HOMEPATH%&(if exist "Desktop\\blague.pdf" (cd "Desktop"' — references a known-dangerous executable (cmd, PowerShell, etc.).
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Embedded attachment masquerades: declared document, content is windows-executable critical PDF_EMBEDDED_FILESPEC_CONTENT_MISMATCHAn /EmbeddedFile attachment's declared filename extension or /Subtype MIME type contradicts the magic bytes of its decompressed content. The attachment is declared as a benign document or image but the bytes are an executable or executable-bearing archive. This is a deliberate deception used to hide droppers in PDF attachments and is a generic indicator of embed-and-drop weaponisation, independent of any specific CVE.
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PDF JavaScript exploit cluster critical PDF_JS_EXPLOIT_CLUSTERPDF combines an executable JavaScript/action surface with exploit staging indicators such as eval/unescape/fromCharCode, XFA script content, or a related CVE pattern. Benign form JavaScript remains low-severity, but this correlated cluster is high-confidence malicious behavior.
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ClamAV: Pdf.Dropper.Agent-7142680-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Dropper.Agent-7142680-0
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/Launch action paired with attachment-dropping JS API high PDF_LAUNCH_PLUS_DROPPER_JSPDF combines a /Launch action with a JavaScript API call that writes or opens an attached/external resource — the canonical shape of the CVE-2010-1240 /Launch + exportDataObject family. Benign PDFs do not pair these surfaces; the combination indicates a drop-and-execute chain regardless of the specific JS API knobs or /Launch target.
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Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASIONPDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded file low PDF_EMBEDDEDPDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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External URI info PDF_URIPDF contains an external URL action
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://www.blague.info/blagues/humour/drole-8889.html
- http://www.blague.info/blagues/humour/drole-4664.html
- http://www.blague.info/blagues/humour/drole-4667.html
- http://www.blague.info/blagues/humour/drole-5795.html
- http://www.blague.info/blagues/humour/drole-5885.html
- http://www.blague.info/blagues/humour/drole-11836.html
- http://www.blague.info/blagues/humour/drole-4666.html
- http://www.blague.info/blagues/humour/drole-681.html
- http://www.blague.info/blagues/humour/drole-679.html
- http://www.blague.info/blagues/humour/drole-11816.html
- http://www.blague.info/blagues/humour/drole-8669.html
- http://www.blague.info/blagues/humour/drole-10909.html
- http://www.google.be/imgres?q=rire&hl=fr&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&tbm=isch&tbnid=Qjlt1xoa0KjkXM:&imgrefurl=http://blog.ecolederire.org/&docid=5xzNnPKfjfZU6M&imgurl=http://blog.ecolederire.org/images/rire.jpg&w=300&h=370&ei=BmOJT_DgM4ak0QWfvajXCQ&zoom=1&iact=hc&dur=187&sig=114033032844469530272&page=1&tbnh=130&tbnw=105&start=0&ndsp=28&ved=1t:429,r:1,s:0,i:131&tx=106&ty=149&vpx=369&vpy=154&hovh=249&hovw=202
- http://www.google.be/imgres?q=rire&hl=fr&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&tbm=isch&tbnid=szgZg2mJoB5iLM:&imgrefurl=http://savez-vous.e-monsite.com/pages/poemes-et-blagues/blagues.html&docid=MUnTlWWSHFWaGM&imgurl=http://s1.e-monsite.com/2009/10/20/12/46862440rire-jpg.jpg&w=254&h=272&ei=BmOJT_DgM4ak0QWfvajXCQ&zoom=1&iact=rc&dur=47&sig=114033032844469530272&page=3&tbnh=140&tbnw=131&start=58&ndsp=34&ved=1t:429,r:49,s:58,i:292&tx=65&ty=71
- http://www.google.be/imgres?q=rire&hl=fr&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&tbm=isch&tbnid=XS33YCfWG46XFM:&imgrefurl=http://fr.universalscraps.com/commentaires.php?f=rire&page=10&docid=G2FscG8gQq5bnM&imgurl=http://c.universalscraps.com/files/fr/rire/rire_088.gif&w=276&h=288&ei=BmOJT_DgM4ak0QWfvajXCQ&zoom=1&iact=hc&vpx=524&vpy=106&dur=47&hovh=229&hovw=220&tx=100&ty=110&sig=114033032844469530272&page=3&tbnh=131&tbnw=126&start=58&ndsp=33&ved=1t:429,r:2,s:58,i:264
- http://www.google.be/imgres?q=rire&hl=fr&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&tbm=isch&tbnid=jiAC8Btw7E167M:&imgrefurl=http://antonietaechico.centerblog.net/rub-pour-rire-.html&docid=NNKsxe54JoFR7M&imgurl=http://antonietaechico.a.n.pic.centerblog.net/24774f32.gif&w=300&h=299&ei=BmOJT_DgM4ak0QWfvajXCQ&zoom=1&iact=hc&vpx=856&vpy=198&dur=3844&hovh=224&hovw=225&tx=137&ty=119&sig=114033032844469530272&page=2&tbnh=139&tbnw=139&start=28&ndsp=30&ved=1t:429,r:16,s:28,i:228
- http://www.google.be/imgres?q=rire&hl=fr&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&tbm=isch&tbnid=vcycDboaG82BFM:&imgrefurl=http://antonietaechico.centerblog.net/rub-pour-rire-.html&docid=NNKsxe54JoFR7M&imgurl=http://chez-smiley.be/rubriques/blagues/kit/Juste_pour_rire_587x407.jpg&w=587&h=407&ei=BmOJT_DgM4ak0QWfvajXCQ&zoom=1&iact=hc&vpx=963&vpy=2&dur=500&hovh=187&hovw=270&tx=199&ty=107&sig=114033032844469530272&page=3&tbnh=121&tbnw=175&start=58&ndsp=33&ved=1t:429,r:5,s:58,i:270
- http://www.google.be/imgres?q=rire&hl=fr&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&tbm=isch&tbnid=at6hfcR8TrVAaM:&imgrefurl=http://www.rireenboite.com/article-la-blague-du-jour-17-01-2011-65188877.html&docid=yaLMAF3gbeI0oM&imgurl=http://idata.over-blog.com/2/17/55/82/c/RIRE.gif&w=295&h=308&ei=BmOJT_DgM4ak0QWfvajXCQ&zoom=1&iact=rc&dur=62&sig=114033032844469530272&page=2&tbnh=140&tbnw=134&start=28&ndsp=30&ved=1t:429,r:32,s:28,i:198&tx=84&ty=91
- http://www.google.be/imgres?q=rire&hl=fr&sa=X&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&tbs=itp:clipart&tbm=isch&tbnid=PdZvgaonEVDoIM:&imgrefurl=http://www.proxiliege.net/index.php?page=article&id=2993&idrub=1&docid=csbPWtGJekYXUM&imgurl=http://www.proxiliege.net/photos/rire.jpg&w=300&h=225&ei=u2aJT5u5M8el0QWswozQCQ&zoom=1&iact=rc&dur=266&sig=114033032844469530272&page=2&tbnh=133&tbnw=176&start=17&ndsp=35&ved=1t:429,r:5,s:17,i:184&tx=75&ty=91
- http://www.google.be/imgres?q=rire&hl=fr&sa=X&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&tbs=itp:clipart&tbm=isch&tbnid=o4LVj_Arfsr57M:&imgrefurl=http://www.boowakwala.com/coloriages/coloriage-rire.html&docid=JejVvHQZojEnfM&imgurl=http://www.boowakwala.com/coloriages/coloriage-rire.gif&w=1502&h=1169&ei=u2aJT5u5M8el0QWswozQCQ&zoom=1&iact=hc&vpx=884&vpy=292&dur=1984&hovh=198&hovw=255&tx=184&ty=124&sig=114033032844469530272&page=3&tbnh=145&tbnw=186&start=52&ndsp=31&ved=1t:429,r:4,s:52,i:258
- http://www.google.be/imgres?q=rire&start=209&hl=fr&sa=X&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&addh=36&tbs=itp:clipart&tbm=isch&tbnid=rNL-doLOIkLzKM:&imgrefurl=http://40ans-et-plus.hautetfort.com/&docid=4jP3ie_mKo3R0M&imgurl=http://40ans-et-plus.hautetfort.com/images/Gif/JournalRire.gif&w=208&h=204&ei=YGiJT7v0NuOL0AXdn5TYCQ&zoom=1&iact=rc&dur=141&sig=114033032844469530272&page=8&tbnh=143&tbnw=143&ndsp=32&ved=1t:429,r:6,s:209,i:88&tx=67&ty=64
- http://www.google.be/imgres?q=rire&start=209&hl=fr&sa=X&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&addh=36&tbs=itp:clipart&tbm=isch&tbnid=dLbWkC3wQW7PuM:&imgrefurl=http://pastille.centerblog.net/rub-gifs-rire-7.html&docid=urP2ZOKLo8wMkM&imgurl=http://pastille.p.a.pic.centerblog.net/hnocpsku.gif&w=178&h=157&ei=YGiJT7v0NuOL0AXdn5TYCQ&zoom=1&iact=rc&dur=141&sig=114033032844469530272&page=8&tbnh=125&tbnw=142&ndsp=32&ved=1t:429,r:20,s:209,i:118&tx=51&ty=56
- http://www.google.be/imgres?q=rire&start=241&hl=fr&sa=X&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&addh=36&tbs=itp:clipart&tbm=isch&tbnid=qACnMrXNlw0s8M:&imgrefurl=http://guillaumedegalarza.doomby.com/pages/mes-pages/rire-chanson.html&docid=pxybZHtnMVh3RM&imgurl=http://guillaumedegalarza.doomby.com/medias/images/asterix.jpg&w=345&h=270&ei=YGiJT7v0NuOL0AXdn5TYCQ&zoom=1&iact=rc&dur=16&sig=114033032844469530272&page=9&tbnh=135&tbnw=173&ndsp=32&ved=1t:429,r:2,s:241,i:149&tx=70&ty=100
- http://www.google.be/imgres?q=rire&start=83&hl=fr&sa=X&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&addh=36&tbs=itp:clipart&tbm=isch&tbnid=g7Iagu4tTUc7WM:&imgrefurl=http://fr.123rf.com/photo_8266374_rire-motic-ne.html&docid=Uudp4ucWSz6WLM&imgurl=http://us.123rf.com/400wm/400/400/yayayoy/yayayoy1011/yayayoy101100030/8266374-rire-motic-ne.jpg&w=1200&h=822&ei=9meJT8G8D-e_0QXUrK3GCQ&zoom=1&iact=rc&dur=0&sig=114033032844469530272&page=4&tbnh=123&tbnw=180&ndsp=31&ved=1t:429,r:5,s:83,i:15&tx=117&ty=76
- http://www.google.be/imgres?q=rire&start=146&hl=fr&sa=X&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&addh=36&tbs=itp:clipart&tbm=isch&tbnid=UPl8ktlwN-PD-M:&imgrefurl=http://kompozitor.fr/ChtiBonheur/index.php%3Fpost/2009/10/04/Un-peu-plus-humain&docid=89V47GpWUpOy_M&imgurl=http://kompozitor.fr/dotclear/public/Images/Calvin_Hobbes/Fou_rire.png&w=422&h=252&ei=9meJT8G8D-e_0QXUrK3GCQ&zoom=1&iact=rc&dur=344&sig=114033032844469530272&page=6&tbnh=128&tbnw=215&ndsp=31&ved=1t:429,r:5,s:146,i:153&tx=96&ty=60
- http://www.google.be/imgres?q=rire&hl=fr&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&tbm=isch&tbnid=f5VPjlFbt43XzM:&imgrefurl=http://www.fernelmont.be/SiteFernelmont/Agenda.nsf/.AllW/S%C3%A9ance+de+yoga+du+rire?Opendocument&docid=JUjjs0KXEUmUJM&imgurl=http://www.fernelmont.be/SiteFernelmont/Agenda.nsf/0/1ECAA426F078DA3CC12579A6004EC9E6/$File/Eclat%20de%20rire.jpg?OpenElement&w=1250&h=1000&ei=BmOJT_DgM4ak0QWfvajXCQ&zoom=1&iact=hc&vpx=982&vpy=316&dur=1000&hovh=201&hovw=251&tx=120&ty=101&sig=114033032844469530272&page=1&tbnh=123&tbnw=127&start=0&ndsp=28&ved=1t:429,r:13,s:0,i:156
- http://www.google.be/imgres?q=rire&hl=fr&sa=X&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&tbs=itp:clipart&tbm=isch&tbnid=-8GK4eWE5zNylM:&imgrefurl=http://fr.123rf.com/photo_7634096_rire-des-enfants-heureux.html&docid=2LQQKJiWtJjlkM&imgurl=http://us.123rf.com/400wm/400/400/rvika/rvika1008/rvika100800029/7634096-rire-des-enfants-heureux.jpg&w=1200&h=756&ei=u2aJT5u5M8el0QWswozQCQ&zoom=1&iact=rc&dur=437&sig=114033032844469530272&page=2&tbnh=109&tbnw=173&start=17&ndsp=35&ved=1t:429,r:24,s:17,i:225&tx=89&ty=52
- http://www.google.be/imgres?q=rire&start=241&hl=fr&sa=X&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&addh=36&tbs=itp:clipart&tbm=isch&tbnid=EexPe0ThiUWSMM:&imgrefurl=http://simplythebest84.centerblog.net/rub-POUR-RIRE-.html&docid=YV-YqgjEMY_BvM&imgurl=http://simplythebest84.s.i.pic.centerblog.net/eiapj8go.gif&w=381&h=303&ei=YGiJT7v0NuOL0AXdn5TYCQ&zoom=1&iact=hc&vpx=188&vpy=375&dur=718&hovh=200&hovw=252&tx=136&ty=128&sig=114033032844469530272&page=9&tbnh=139&tbnw=175&ndsp=32&ved=1t:429,r:13,s:241,i:173
- http://www.google.be/imgres?q=rire&start=303&hl=fr&sa=X&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&addh=36&tbs=itp:clipart&tbm=isch&tbnid=OAWECPNo5ZOr9M:&imgrefurl=http://paroisseinternationaleandohalo.org/2010/01/07/la-blague-du-mois/&docid=q6da-BF3OK7ZhM&imgurl=http://paroisseinternationaleandohalo.org/wp-content/uploads/2010/01/smiley.jpg&w=240&h=251&ei=GWmJT6XYFKGw0QW3tvXOCQ&zoom=1&iact=rc&dur=250&sig=114033032844469530272&page=11&tbnh=142&tbnw=136&ndsp=32&ved=1t:429,r:7,s:303,i:86&tx=88&ty=77
- http://www.google.be/imgres?q=rire&start=83&hl=fr&sa=X&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&addh=36&tbs=itp:clipart&tbm=isch&tbnid=8SKQG6x3TReBWM:&imgrefurl=http://jmcconseils.pagesperso-orange.fr/individu_yogarire_fr.htm&docid=mgsBcgjaemfoxM&imgurl=http://jmcconseils.pagesperso-orange.fr/media/rire.gif&w=222&h=200&ei=9meJT8G8D-e_0QXUrK3GCQ&zoom=1&iact=hc&vpx=946&vpy=517&dur=422&hovh=160&hovw=177&tx=158&ty=90&sig=114033032844469530272&page=4&tbnh=143&tbnw=159&ndsp=31&ved=1t:429,r:17,s:83,i:41
- http://www.google.be/imgres?q=rire&start=146&hl=fr&sa=X&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&addh=36&tbs=itp:clipart&tbm=isch&tbnid=tCfJR6ItuR5nUM:&imgrefurl=http://drole-de-maths.skyrock.com/2369607959-Pourquoi-le-gaz-hilarant-fait-il-rire.html&docid=-2O0GodFToCHvM&imgurl=http://b5.img.v4.skyrock.net/b5c/drole-de-maths/pics/2369607959_small_1.jpg&w=400&h=320&ei=9meJT8G8D-e_0QXUrK3GCQ&zoom=1&iact=hc&vpx=359&vpy=2&dur=437&hovh=201&hovw=251&tx=121&ty=75&sig=114033032844469530272&page=6&tbnh=140&tbnw=222&ndsp=31&ved=1t:429,r:20,s:146,i:186
- http://www.google.be/imgres?q=rire&hl=fr&rlz=1T4GGLL_frBE338BE339&biw=1280&bih=796&tbm=isch&tbnid=f5VPjlFbt43XzM:&imgrefurl=http://www.fernelmont.be/SiteFernelmont/Agenda.nsf/.AllW/S%C3%A9ance+de+yoga+du+rire?Opendocument&docid=JUjjs0KXEUmUJM&imgurl=http://www.fernelmont.be/SiteFernelmont/Agenda.nsf/0/1ECAA426F078DA3CC12579A6004EC9E6/$File/Eclat%20de%20rire.jpg?OpenElement&w=1250&h=1000&ei=BmOJT_DgM4ak0QWfvajXCQ&zoom=1&iact=hc&vpx=982&vpy=316&dur=1000&hovh=201&hovw=251&tx=120&ty=101&sig=11403303
- http://www.microsoft.com/typography/ctfontshttp://fontfabrik.comYou
- http://www.microsoft.com/typography/fonts/default.aspx
- http://crl.microsoft.com/pki/crl/products/CSPCA.crl0H
- http://www.microsoft.com/pki/certs/CSPCA.crt0
- http://crl.microsoft.com/pki/crl/products/tspca.crl0H
- http://www.microsoft.com/pki/certs/tspca.crt0
- http://www.microsoft.com/typography
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
blague.pdfb7084be86d26af5a82e46043fd4435dfd48ba4474ff8322eb4439bcceed053c0 |
pdf-embedded-file | PDF EmbeddedFile object 1291 at offset 0x108DFF | 26112 bytes |
javascript_obj1292_000.js4bd74b2a9f98cdc422cf5868be91e16e98e9ed9cf30a71e477744e174502d3af |
pdf-javascript-stream | PDF /JS object 1292 at offset 0x10BB50 | 55 bytes |
stream_067_off000de578.binb2fbfa78ac376d26ff681e775a70c7cbcf17b1875cbaa14f488954ef8eb96c6a |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xDE578 | 177192 bytes |
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