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. It contains numerous external links, many pointing to compromised WordPress upload directories, suggesting a link farm designed to redirect users. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://chcial.ru/uplcv?utm_term=unscripted+by+mj+demarco+pdf
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/h8pg1ejsrs8gfun79dvbaag79j/91911245923.pdf
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c56f9fe8898---23042692360.pdf
- https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/a1d5a8c95bceff8b459659505492a9ce/31078155724.pdf
- http://protok.pro/upload/files/pisujujepus.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c6cbb797f8a---nanowuf.pdf
- http://www.hangmandigital.com/files/file/81680236011.pdf
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b4c567b0295---nojukakiwekerik.pdf
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d57d868a011---74097836070.pdf
- http://dolphinkorea.com/files/files/vixeragonuruvuzukoxap.pdf
- http://kemenyseprosiklos.hu/upload/file/pexolugegojizivosid.pdf
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160dacb760c1cc---rijugimas.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160948e21baa4c---87446967722.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1606d65d85b6a7---75709218902.pdf
- http://womenwhorockarkansas.com/clients/4/4c/4cfcdabbb7b8ad81bafe9a4295858145/File/43047025083.pdf
- http://hzqzg.com/d/files/70411538573.pdf
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/a89b5bad545a6359dfafd2f8bda1b4df/304603743.pdf
- http://araonline.hu/uploads/file/36209953977.pdf
- https://markeishahall.com/wp-content/plugins/super-forms/uploads/php/files/a3d2c50772cef793f98f28d70181e5e1/kokulotapibezite.pdf
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/4a3870c70675571339593f99465b62ec/88362394333.pdf
- http://castudio.eu/userfiles/files/32649153916.pdf
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/a52482be7e0735f19e7a4298333ea1ae/fogogetedazavasovoravi.pdf
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/3b89e7f98fbbe90a1592d6fd2fa5a6f0/dopegaruputupumewinulu.pdf
- http://www.valathors.com/ckfinder/userfiles/files/jegegomivefikewonijiz.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_off0001093e.bin3a035d3753b1f4ab3f46abff7a89350751096760df7929b202712d96a076d314 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1093E | 17948 bytes |
font_01_sfnt_off00013810.bin2e5f63f6a6b6773b440cda831c3b19ce5dcae8319b86707951316f9a6f5c34e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13810 | 11124 bytes |
font_02_sfnt_off000151cc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x151CC | 16792 bytes |
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