MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm to distribute further malicious content. The presence of embedded URLs and the nature of the heuristics strongly suggest this document is part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://crewmak.ru/uplcv?utm_term=bolt+head+size+chart+pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc10d937ad---71887152024.pdf
- http://travelshops.pl/userfiles/file/57869692160.pdf
- http://thuephotocopytaihanoi.com/upload/files/jixivewozowumiviv.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/d979910cec500c46afd9629f3bd2adc1/88713865200.pdf
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/13273281720.pdf
- https://bibliotheque-des-arts.ch/ckfinder/userfiles/files/repokewiribu.pdf
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/4t5bd1ll87pt9rtdshrs8e9mt3/73695251809.pdf
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce36444bd32---jazafine.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/0cd297502341e1bc44218089930cb7ca/33589121965.pdf
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/aa87c8b0f7a4f36028d4841aaace483f/50145331885.pdf
- http://randygordonlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/womulejagegase.pdf
- http://sunnysidehigh65.com/clients/d/d0/d00d1ad1640c45b888f5e58ac216a5d1/File/welelamubu.pdf
- https://youxsoft.com/uploads/files/rulokidutufotiwuxukaboze.pdf
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607048cea46aa---zijuzetajomixunibebu.pdf
- https://associazionemusicaviva.it/uploads/file/nunakikuwijoj.pdf
- http://na3.it/misc/file/42268553261.pdf
- http://4seasonstours.in/userfiles/file/wojerewibedokojowufoz.pdf
- https://10s317.com/uploads//files/202108111149029368.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e5de09c303---wofajotamesikawara.pdf
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/d48a3f03fd4319564c05a0a542f9a0f8/janitozenuvutekukak.pdf
- https://argekaucuk.com/nbg/upload/files/98417732889.pdf
- http://jinruily.com/UploadFile/file/20210826221314781.pdf
- https://cortemadera.com/wysiwygfiles/file/50466188845.pdf
- http://samsung-service-center.ru/uploads/files/kamalarawobujifuxivu.pdf
- https://ppntassone.it/dati/upload/file/71514253638.pdf
- https://floridaholidayplanner.com/wp-content/plugins/super-forms/uploads/php/files/e942883ac022b765ba78c06e4a9a8410/25520107664.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_off0000d134.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD134 | 16792 bytes |
font_01_sfnt_off0000e946.bin222aa27ac78ff8902cdff60eff4fceb266718f4807e0a1f91ce586afb579a771 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE946 | 16972 bytes |
font_02_sfnt_off000114d8.bin3d4d12260076ea0bd10426727729b60ad8092553acc61fef96f3b51da184bb94 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114D8 | 10724 bytes |
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