MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The document employs social engineering by presenting a lure to install a browser extension or update, a common tactic for credential theft or malware installation. It also contains a link farm pointing to compromised WordPress upload storage, suggesting it may serve as a dropper for further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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 http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a068cc55296---zapetitajosegibaxi.pdf
- http://apsons.eu/files/file/57329787389.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/160785a3e4163f---21741272920.pdf
- https://parklanehotel.asia/userfiles/file/ribanufumiguzifepobadak.pdf
- https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/44101253079.pdf
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/3onp4ggi8hpttld6kj3g9uma5o/66683048212.pdf
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9660055f3a---fatefimawevuja.pdf
- https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/llknbo9losb128ro27igvrrk2d/71047389255.pdf
- https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/jamshn977e6d7krg90ud575q5c/38670378946.pdf
- http://castrolmintabolt.hu/images/upload/file/17613001953.pdf
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075e41a8a64a---romorinuzegedutalagesi.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c67e5b0511e---37406563556.pdf
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b44f23d2b9b---13124552488.pdf
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/1607c8fde7773f---5025808909.pdf
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/8de7d1f72b463850399e9c382e1d5287/10685819582.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b9e69eebe05---63891979829.pdf
- http://afgventuregroup.com/cfiles/file/60630551646.pdf
- https://nabsangram.com/userfiles/file/zejemaru.pdf
- http://atrsara.ir/resource/files/tejexozujufixafura.pdf
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/f51711baa2623cee167b4dafae738a71/nasujivevuw.pdf
- https://delaneyllc.com/ckfinder/userfiles/files/wefepusajilukaseluz.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160be787d0fdad---fujusobezimonit.pdf
- https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/160826e2df0bea---fovinaxe.pdf
- http://creativeindustries.ru/uploads/userfiles/file/wowunutije.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=wt+viva+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_off000123f5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123F5 | 16792 bytes |
font_01_sfnt_off00013c0c.bin29a90d02a03e1497616c41fa56b6f2a7ee99c043135b62e884035c791aa287ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C0C | 10588 bytes |
font_02_sfnt_off00015433.bin4b74259a56a1dbb5c92eaa897cbd1504c0e489e40bb21b6a0b93a1ee39c043e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15433 | 18636 bytes |
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