MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV detecting it as a phishing trojan. It contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting, suggesting a link farm or redirection mechanism. The primary attack pattern involves directing users to external malicious sites, likely for phishing or further malware delivery.
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 https://pistant.ru/uplcv?utm_term=mn+twins+delay
- http://garderoba.sk/images/_file/89417873785.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/e7b19bd367031fd1acd341d610c7f306/liveketodasirideb.pdf
- https://okazionche.com/files/senexazovo.pdf
- http://mchs67.com/clients/6/60/601da637195afcc8544498be66ee72b0/File/45134135102.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608155e465473---nufakaxovibutawezifi.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160713046931af---79256972994.pdf
- http://skupka23.ru/upload/m/79082151311.pdf
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160af9f09880d9---wogulabidifa.pdf
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/53401e7c14230677d60a0d15ea07b384/gobogodejunisago.pdf
- https://genegurumiraclehealer.com/userfiles/file/texonaw.pdf
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160bbd9b554846---82437632857.pdf
- https://burlingame.com/wysiwygfiles/file/38906832829.pdf
- http://ideatity.com/ckfinder/userfiles/files/1483865961.pdf
- http://samafb.org/uploadfilefiles/pudunometibubix.pdf
- https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/f9ac856de906f670846d5f2d5f4240c7/21451306240.pdf
- https://aokman-drive.com/d/files/30417116132.pdf
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609edb723b866---59617685994.pdf
- https://goodluckfishing.com/ckfinder/userfiles/files/65746161995.pdf
- http://liyangah.com/Upload/file/mojimemevusakonefozi.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160bf778f5d095---borutixadugigodusolema.pdf
- https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607f71998fadf---97294544167.pdf
- https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608789c8a181d---kesokuwazasavugegila.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_off00010510.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10510 | 16792 bytes |
font_01_sfnt_off00011d27.bin552f1c0e4d8aa0d3faf5824775a108e8c94fc0f4dd816a5b65bd0d1c0f33f8c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D27 | 10212 bytes |
font_02_sfnt_off00013439.binf21ff5157cbffaf777d69731806f6df41db2795b503c9eab4230307e4cce2e1d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13439 | 18800 bytes |
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