MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or appear to be part of a link farm designed to obscure the true destination. The document body is heavily obfuscated and unreadable, suggesting it is not intended for user interaction but rather as a container for malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/7a3f0175257270df7e13fe8fc1846d28/telubu.pdf
- https://nikken-engineer.jp/export/sd205/www/jp/r/e/gmoserver/8/6/sd0748886/nikken-engineer.jp/fckeditor/upload/file/47629150806.pdf
- https://upchealth.net/wp-content/plugins/super-forms/uploads/php/files/f4a98fd082a0ea52afe21ac1ebf27d13/61605677866.pdf
- http://youngshiny.com/userfiles/file/1626538705.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa6ebbad0e---julejipi.pdf
- https://quangcaowebsite.vn/uploads/files/3258926528.pdf
- http://kfnmdg.com/upfolder/e/files/20210623175633.pdf
- http://srihemkuntschoolint.com/slbdavbatala/userfiles/file/39092026502.pdf
- https://ntwbearing.com/UserFiles/File/miwamokovezodut.pdf
- http://1960vonsteuben.com/clients/d/df/dfb5e1b83ea85bfdc5ef1da934264264/File/66744005829.pdf
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/e16aekht25qt7dg5370imb4fe6/18162012070.pdf
- http://tai-group.com/upload/files/36055293788.pdf
- http://hhsbluebirds1967.com/clients/b/b5/b592d679e9980e62d9d56be1bfb8b6b6/File/78062931393.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1608ab0f8916af---78428527136.pdf
- http://wannawwannie.pl/userfiles/file/77916337405.pdf
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/e4e3c76ec383f1af433e3e30b30440a4/66216109485.pdf
- http://www.dilipprabhavalkar.com/images/file/fenif.pdf
- http://agiteam.org/clients/b/b0/b0c4817036ef1cb73596cc935f3fa86d/File/fuwokokeguvenisokapigiga.pdf
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/1e812db5b926d1d9fb5162c92b4224d2/bamalekadelukon.pdf
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/065497f53506d246dc9e8a9656a06059/6030904625.pdf
- https://branchennachweis.eu/userfiles/file/57712333891.pdf
- http://zwickerfoto.hu/_user/file/rifitowel.pdf
- http://ateliergermain.net/sites/default/files/file/4052351963.pdf
- http://vistobrasil.net/uploads/file/xiduvapededarugikug.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=fabulas+de+esopo+en+ingles+para+ni%C3%B1os
- 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_off00010a13.bin6962a9b59346baed202d57f98a80d00004c15bf8d820890d383c5e78b538f2a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A13 | 18008 bytes |
font_01_sfnt_off000137ff.binc114305561daffc374063e2a2c5e304b8435fc6e5cb9b41b71dbc909ab83824c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137FF | 10892 bytes |
font_02_sfnt_off00015089.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15089 | 16792 bytes |
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