MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ClamAV and an ML classifier. It contains a link farm with numerous URLs, many hosted on compromised CMS upload directories or disposable domains, suggesting an attempt to redirect users to malicious content or phishing sites. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a non-clustered link farm on disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/ccd1860c5983e1b8e2543f220b4a5279/33696789205.pdf
- https://denizlihorozu.com/resimler/files/voxekilugobevosenu.pdf
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/816cb3e3ec90241257ffc1f680416461/2816709290.pdf
- https://sunsoftinfoway.net/ckfinder/userfiles/files/70505818692.pdf
- https://consultingexpert.eu/fckeditor/userfiles/file/vovena.pdf
- http://solis.altrodesign.eu/ckfinder/userfiles/files/towafolojabenubejeluxuwi.pdf
- http://firmykominkowe.pl/Obrazki/edytor/file/wegewowo.pdf
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/ad4700ffde76ce0e98c7f5cf9a8090ee/9052418126.pdf
- http://sb-78.ru/files/file/21510365639.pdf
- https://irantruck.ir/data/file/vobumamepenetupewilusodi.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160760351cd7dd---30993316865.pdf
- http://secretinvitation.net/images/files/nuzofozelubuwumuvilujodo.pdf
- https://licorne-hotel-restaurant.com/userfiles/file/75934236903.pdf
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609739f1d5d90---65626577721.pdf
- http://zulaikhatextile.com/userfiles/files/9401799813.pdf
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/7c9359ef8bc797657d0800b6cb1ab1a2/buzaleniwajoser.pdf
- https://pass-eco-energies.com/ckfinder/userfiles/files/gaminera.pdf
- https://feldmann-spedition.de/pics/userfiles/file/16760562218.pdf
- http://sbs-group.co/userfiles/files/lorurogulomafe.pdf
- https://daks-96.com/f/uploads/files/fifaju.pdf
- http://xboxheerlen.nl/userfiles/file/87921995463.pdf
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/f9dr6k7ldpl37sjidk6o7qc1jg/jewelerugevefadelejinuzi.pdf
- https://cornerstonelaw.eu/userfiles//file/20288197562.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=kundli+matching+for+marriage
- 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_off0000f11a.bin198cb01c7ffa2b0583ab9ae751e80eb5b08f9e1032863a2de32098f389f126d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF11A | 16804 bytes |
font_01_sfnt_off00011caa.bin8cfbab48b72552f554b767aca34c33648439de89b49dd67a198491282c2fbcdb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CAA | 10848 bytes |
font_02_sfnt_off00013543.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13543 | 16792 bytes |
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