MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the presence of link farms pointing to external PDF files, some hosted on compromised or disposable domains, suggesting a lure to download further malicious content. The 'SE_DOWNLOAD_BUTTON' heuristic further supports the phishing pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://bukharageorgia.com/sites/default/files/file/88560763740.pdf
- https://tedesco.pl/userfiles/file/nutejinigasowenepeker.pdf
- http://chafewyuok.handysociality.com/upload/files/58124246342.pdf
- http://hitecds.com/userfiles/file/rirenikag.pdf
- https://comtraining.cl/userfiles/files/rafukiwemavixorumoviwo.pdf
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613514d9ca461---rigurubepapi.pdf
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/7412ad163920b17597af2eda0e3a0160/84620020277.pdf
- http://abwfinlay.com/uploads/files/nekamovetodisu.pdf
- http://angelofthewinds.net/ckfinder/userfiles/files/fabeligutefogegiv.pdf
- https://junona.manyel.website/images/uploads/medium/memufevokemesupukupikusij.pdf
- http://cn-polylysine.com/d/files/83917943942.pdf
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/161398874ab9c2---42901977925.pdf
- http://medicaldistri.com/ckfinder_files/files/givedoguretitokala.pdf
- http://telektrans.hu/editor_up/bevokuvebakixefi.pdf
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fbdd35181e---jopoleno.pdf
- https://nolimitscenter.be/peausitive/images/FCKeditor/file/19440690331.pdf
- http://spreewaldatelier.de/img/editor/file/63880712029.pdf
- http://pure-chiral.com/upload/files/87361784783.pdf
- http://kamkmori.cz/ckfinder/userfiles/files/83445531360.pdf
- http://laboratoriologos.it/userfiles/files/45479584670.pdf
- http://zatexpress.com/upload/userfiles/files/kilojetudidedekanuboxubo.pdf
- https://glozor.com/userfiles/file/22335337836.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=hellboy+2+123movies
- http://cluster006.ovh.net/~greeters/namur/ckfinder/userfiles/files/xuvor.pdf
- 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_off0000dc3b.bin2ba942fe8148d9a1bef6d8aa777639c9c595632602ff8a5ec9b3c9df409c970b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC3B | 18396 bytes |
font_01_sfnt_off00010c25.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C25 | 16792 bytes |
font_02_sfnt_off0001243c.binb3f850ad30c758c6c93f193a1167e89b49f960721bc749d915f405faaa170b39 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1243C | 10460 bytes |
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