MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document that contains a link farm pointing to multiple disposable hosting domains, many of which are compromised WordPress sites. The presence of a 'password-protected archive handoff' heuristic suggests the document is intended to trick the user into downloading a password-protected file, likely containing a malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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 https://bbmint.com/userfiles/file/46765955466.pdf
- https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/fote5337rmd43c551k2c92i1u6/gixivin.pdf
- https://nothingbutsafetyglasses.com/userfiles/file/xewibawaded.pdf
- https://www.llgnjinc.com/wp-content/plugins/super-forms/uploads/php/files/688aa24664166449532c3ce4b8db05c7/40593148897.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/c509f8e531f72533407c42719c45d637/28392693162.pdf
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d67fabc69b8---65291721058.pdf
- http://yangs-ns.com/ckfinder/userfiles/files/20210605125159.pdf
- http://bjjiffy.com/upload/mubavaki.pdf
- http://innotack.com/userfiles/files/rikuxatogotad.pdf
- https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bafb244c5f---tukabukage.pdf
- http://aiswaryamatrimonials.com/fck_uploads/file/garevabezawopifi.pdf
- http://kingalbertltd.com/uploadedfiles/file/sevol.pdf
- http://yossy.biz/userfiles/file/54471959275.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa36476a48---31026877370.pdf
- http://ahchala.com/img/file/11095173573.pdf
- http://gourmethousemacau.com/UploadFilesfile///10724258871.pdf
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae326816ae---mubefurisurajunerasupedi.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e168b9b307---18845986544.pdf
- http://moon-villa123.com/CKEdit/upload/files/fiwifamijowumibavaru.pdf
- http://cellesekorea.com/ckupload/files/pimiv.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/46aa746ce231a3bc48b4af86749b588d/vojamifofotak.pdf
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef54614875---doviwavosoniro.pdf
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/160b6edcc2df6e---23223195719.pdf
- http://banghetretunhien.com/media/ftp/file/86510790704.pdf
- http://cnkls.com/userfiles/file/1624713895.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=us+constitution+trivia+questions+and+answers
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f382.bin84e9ea92ad23bd8dd52c53a69d7388c4dedb0b78f7a80071a0ffc3952ce6cbbf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF382 | 10720 bytes |
font_01_sfnt_off00010c1f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C1F | 16792 bytes |
font_02_sfnt_off00012431.bin29445529eaf9af247ed2342f71a17296638bc64957193a5f21b3c23d7e3df557 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12431 | 17596 bytes |
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