MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document identified as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised WordPress sites, likely intended to host malicious payloads or redirect users to phishing pages. The presence of multiple PDF link farm heuristics indicates a deliberate attempt to obscure the final destination and evade detection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/4a141d90ef4a93e340bfc2bc8b5cbd6c/79863862528.pdf
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/16093243958ff3---norudoputirawutonure.pdf
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ec9d66014f3---19417153010.pdf
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/6f948f85fd736b8b96a4385488f722f3/54785362137.pdf
- http://kleiberit.ru/files/file/89555361789.pdf
- http://chiangmai-clean.com/user_img/files/62111281135.pdf
- http://ongxoanhdpe.vn/upload/files/10773605312.pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/9f88af75abc01c184f7b39ac90012438/lesupoketexet.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8f1a350f9---14816777471.pdf
- http://boschvietnam.com/files/usersfiles/files/49755415797.pdf
- http://www.findvoters.com/userfiles/file/57323504245.pdf
- http://naturallabs.fr/userfiles/file/34722737599.pdf
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/g6vc2bh55ocpvojam8huiah81j/70402473666.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a04039b6379---pojotuvopokud.pdf
- http://asbazainville.org/userfiles/file/kegikurajusidolu.pdf
- http://www.centralperdana.com/file/48827411894.pdf
- http://writtenmail.com/upload_images/file/32192998012.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609da32d58c5f---nipewunawareguxilon.pdf
- https://vresponse.net/userfiles/file/wetizebodagekuke.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/5f7d28acebc628d3de652bf71e5611a8/58507183779.pdf
- http://tipiland.net/upload/file/nidowidujaruk.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4bdd57454a---86375537629.pdf
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/a340fb8771b4f0c1b566850236b9fd3d/vozogem.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=the+crucible+religion+quotes
- 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_off0000ebdb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBDB | 16792 bytes |
font_01_sfnt_off000103ed.bin5e1b17b42802db9b79b167453fd06eb5b915d18a32d8309d5849de904d9caa4e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103ED | 16780 bytes |
font_02_sfnt_off00012f15.bind6383cdcbeafad9948f11bbdda106b5ba06ade5980a736a4c17435a636fb3ba3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F15 | 10696 bytes |
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