MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution intent. It contains numerous embedded URLs pointing to various websites, some of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, providing no direct clues about its purpose beyond the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://catamma.ru/uplcv?utm_term=ibs+and+antidepressants
- https://cabsfromheathrow.com/userfiles/file/69177528121.pdf
- https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/f45d7e61422d609ceb2fb94f5d90493d/xojevelovodogokelaru.pdf
- https://cooperspick.com/files/waxejuwor.pdf
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d61ba0764---watepijuxalutilobi.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160893eb46824b---kavazapexapu.pdf
- http://tecsun-moscow.ru/docs/file/jipamozolekeposotisib.pdf
- https://fizjolech.pl/userfiles/file/rizevesomefa.pdf
- http://delvalle68.com/clients/54584/File/95814313740.pdf
- http://mstreatmentadvances.com/userfiles/files/71870886542.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b37a4161130---7037481036.pdf
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/1ec2050e65565b3f2572bb3eac0e0f95/25007916892.pdf
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1609ec4e09a3e4---bepegotomufovoku.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/16089eb30c5fcf---makuxugidozik.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/0f42b07befb502527fa10a1acf8ca5d7/lunel.pdf
- https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/aml1krc6h3rjqqdtlg9qee313a/jesetadalem.pdf
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160863a7f30f9f---goziw.pdf
- https://rowadalbyt.com/userfiles/files/5431022089.pdf
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084eb1425c3e---84944705613.pdf
- https://dprkoreatour.com/uploads/files/jetafaromijefilazotej.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160919caee434a---farote.pdf
- http://chia4kids.ru/ckfinder/userfiles/files/96808930001.pdf
- http://group-anons.ru/userfiles/files/fozivibiwedix.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba1b184a44b---57515180408.pdf
- https://medlineplus.gov/antidepressants.html
- 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_off00010f81.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F81 | 16792 bytes |
font_01_sfnt_off00012798.bina007ce24794fc566e7741ad3917275b50a3a0eb136ecfde063b838db73fc1c42 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12798 | 10308 bytes |
font_02_sfnt_off00013ebb.binf9f201d805df6ec798e552ec571fbdb7300b61f37b8a4eb72ef845065ed7996f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13EBB | 17004 bytes |
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