MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to various URLs hosted on compromised WordPress sites and disposable domains. The presence of external URIs and link farm characteristics suggests a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/8e5566c32b2111a79930483d26ca3848/13485798.pdf
- https://www.sehersirin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb4bbb2236---23859079579.pdf
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607c16a488cb8---pevopukulotawirubuzadi.pdf
- https://svetpoznaniyaonline.ru/wp-content/plugins/super-forms/uploads/php/files/d0a052409f20df51a2dcc9017bca1080/92508618483.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/1607c718913690---majikediwak.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607c64ece6b7a---nowibeweligexog.pdf
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075baf83fa9b---lazopasoloruvezi.pdf
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607208c29eb30---88202391889.pdf
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160766907e8ae4---vuganafezinelofi.pdf
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/90066991e35cfd0dbbb2c8ea95c10453/464251658.pdf
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fe29eb4e76---fegapa.pdf
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/gofkucq4r0dce2c9legm0vm9p3/rujenunumeter.pdf
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160803c1f5ae06---jusegemamax.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/fcl3de5eg72lnfe6kqungdsqf5/dojalawawim.pdf
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/11fce312623191bf557bd5a0ee0bc0f9/sakivibepo.pdf
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/cda7735f5db3284b40f324784b80d2c6/16687875905.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=4k+3d+video++free
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cde6.bin7722d5b678728af4a3d12b8e525dce8b2f7ded53f326e7d14ea0689a35c9f70a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDE6 | 5684 bytes |
font_01_sfnt_off0000e1bd.bin1da17bcb6d5ee357a0faceb4cfe629ce2c8b93d8768db8bd9960dac11fda34ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1BD | 4764 bytes |
font_02_sfnt_off0000f216.bin841b6796dcbe1a5a4a7db2f804afda8c54c2fd94226a16dd5cc33acb956b1b82 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF216 | 13592 bytes |
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