MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan. The heuristics indicate it functions as a link farm, with many URLs pointing to compromised WordPress sites and disposable hosting, likely to host malicious content or redirect users. The 'SE_CALLBACK_LURE' heuristic suggests the document's content is designed to trick the user into calling a phone number, a common tactic in tech-support scams and callback phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://crewmak.ru/uplcv?utm_term=rib+fracture+treatment
- http://0851gay.org/userfiles/202106file/2021062323462670554.pdf
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608a1e08ea6b6---98439985373.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160e48cc195b30---41019734149.pdf
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7aaef1751c---22326223947.pdf
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/b38b383fdb85fc413361b600ed9753bf/43310066406.pdf
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/7adc02c81d79e3aadbb0eb302174a1f6/62273425396.pdf
- https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/e3666b0cc07ab124594c56dbdc4143a3/pibojonesikenozifepase.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093412dee9bb---vugolabozufuka.pdf
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/6b1ff5454a8312bf687cd0db54e6f1ec/82487369440.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bad0e7d246---lasepisilo.pdf
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/de2d09480541f8f07b1b8d02727b2b9c/sekenirebiluvonowunur.pdf
- http://aj-logistics.com/stock/userfiles/file/34910239909.pdf
- http://2ds-creations.fr/userfiles/file/dufom.pdf
- https://rhodium.vn/uploads/news_file/dutumab.pdf
- http://vencedor.coop/images/admin/file/veredegawukuvosumidomepe.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/d67f216d2f8759119b1fd35476b3e7dc/dokix.pdf
- http://amandatravel.com/userfiles/file/46293235054.pdf
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa70dad349---juvamuvinot.pdf
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/26ff12938b00794841413b19098b9841/lebasizirek.pdf
- http://lordbeaverbrook1973.com/clients/76835/File/45301176211.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/f95b25c81011e4bd3e0652831d3d2ae7/25094168741.pdf
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076bc99bb193---mojogesupudezowov.pdf
- http://ebsenglish.net/_UploadFile/Images/file/ripabegonetepuvalivafuxak.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_off0000e295.bin07c6fdf86e6ad96df6de600c88dcd239c7b892673cb7b44f627b872e134cde3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE295 | 16320 bytes |
font_01_sfnt_off00010cd3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CD3 | 16792 bytes |
font_02_sfnt_off000124ea.bin7d2fd59faaf9056b3bb66b62ff88b613bdbef017e55a9a2d7951299689278a3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124EA | 10448 bytes |
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