MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was identified as malicious by a ClamAV signature and an ML classifier. It contains a link farm with multiple URLs pointing to compromised WordPress sites, suggesting it is used to redirect users to malicious content. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://ugyvednok.hu/userfiles/file/5968050585.pdf
- https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/5n2vbc291gj9mbj1khfq1hfe5v/23580557915.pdf
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1b4188a081---dubikitizuwizewetikokesar.pdf
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/7qvg7s0srfavr22l19ac6palg5/95603385788.pdf
- https://alzubidi.com/userfiles/files/fobinefafi.pdf
- https://abofahed.com/userfiles/file/suresipixobuka.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608f3c3c8955f---dareve.pdf
- http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160929ee7a1434---28575894620.pdf
- https://hijaulumut.com/contents//files/pomagojivofifabu.pdf
- https://aspirans.com/files/file/73143963122.pdf
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/cf221e9d15032cc296bcd0041ce1163a/72590179076.pdf
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3af1c98f5---fepomajuzagi.pdf
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/lqo3otfff86ps49a66u2gsqiks/49937743675.pdf
- http://gtshotel.it/images/file/tilifinogekunadogodiluf.pdf
- http://dzbnf.com/upload/file///73092777318.pdf
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/1a2c94763f7640054349fd6ac52d4c42/43520386572.pdf
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b9c55c56e15---xizesitenumega.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097dd43e9322---ravirubigaxag.pdf
- http://cherishedmomentphotos.com/clients/8/84/84fe84b553acfcd191e166b7401b6f02/File/393109533.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085c08732e3a---dopoma.pdf
- http://gursakaryahukuk.com/images/file/7580467562.pdf
- https://autotrans911.com/thread/admin/uploads/file/32325744000.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=ghost+of+christmas+past+quotes+and+analysis
- 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_off00010815.bind1905498eb1ef5d9ce90582967859988cb87f789f1e4b48422cd019dfcf6f483 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10815 | 17828 bytes |
font_01_sfnt_off000136ac.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136AC | 16792 bytes |
font_02_sfnt_off00014ec3.bina8a75636203b0200a056b7a4214d0fe9c2222bed06f5065d5f155e117a59699e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14EC3 | 11284 bytes |
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