MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The file contains numerous links pointing to compromised CMS upload storage and disposable hosting, suggesting it is part of a link farm designed to redirect users to malicious sites. The primary attack pattern involves exploiting user trust through a seemingly legitimate document to redirect them to potentially harmful content.
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 http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/up8vlkkl13h9bhj51slf1bpqq7/manimalosujozoselovi.pdf
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/ma0pnc4ukdlso6pgd16716r4op/81148051887.pdf
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/4f54c6518adb163949aeeafb5a4d8b59/99053623264.pdf
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/41ec9fe9340cead298e3fd7b1038e498/bululuberujurezajif.pdf
- http://star-transform-moscow.ru/uimg/files/51628423102.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/4bbr840n18l47h9mtgsk104beb/vuxelafuwilubisiwip.pdf
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b2abad0c9cf---mudafobugibak.pdf
- https://actioncoach.com.my/wp-content/plugins/formcraft/file-upload/server/content/files/160ab699ad0a80---78272832520.pdf
- http://efrex.cz/files/file/viwatit.pdf
- http://aitrans.org/UploadFile/file/F1202105211218472600.pdf
- https://www.waterlooarmsnewforest.co.uk/wp-content/plugins/super-forms/uploads/php/files/90ebc5bfa2be3604d82e57d85fd049ee/roronejibonotesoxoxuti.pdf
- https://cardion.dk/gfx/fckimages/file/72593246106.pdf
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/1608e4dd9c60d7---12681097039.pdf
- https://iominneapolis.com/wp-content/plugins/super-forms/uploads/php/files/cf8902e3c1a6ba9811854f9a7aba248b/1174819524.pdf
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607009293d715---26359989451.pdf
- http://remaining-mc.de/userfiles/file/70301381833.pdf
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/2o439g4a51qj5e4ve3s3g6ae6t/7656711610.pdf
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/638bc9212328dd366b468670ee059707/xukuxinonerekubutikusosow.pdf
- https://www.synergyheart2heart.team/wp-content/plugins/super-forms/uploads/php/files/sm3euh61qdiidugq1punhch6jd/97567290685.pdf
- http://cupta.org/userfiles/files/20210529001502.pdf
- http://twfbs.com/ckfinder/userfiles/files/1453116544.pdf
- https://imotrading.com/images/userfiles/94976894263.pdf
- http://firegallery.ru/img/upload/484824617.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=tv+shows+like+mutant+x
- 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_off0000b6da.bincd1875d5d1dcbfa250d8dbd399ccfb0c3932bb84e0c46c16ba2456b0eaa7adb4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6DA | 15288 bytes |
font_01_sfnt_off0000de47.bin9094a7a28c2f854df2fdaeff5600208a922babd5088a9f12670671290d306efd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE47 | 10684 bytes |
font_02_sfnt_off0000f6b7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6B7 | 16792 bytes |
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