MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous embedded URLs pointing to compromised websites, likely intended to lure users to phishing pages or download further malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for these links, suggesting an attempt to evade detection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9890
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://pistant.ru/uplcv?utm_term=3+phase+4+wire+distribution+system
- https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/085eb8bd8953953bfa59ec7dbd31e015/24889921092.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/b841f6d10b63aa7e0fb3c52a88d36eba/daroka.pdf
- http://tlxzkj.com/uploads/file/140928555310.pdf
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c49ebea9de5---74935689891.pdf
- http://refpecsbelvaros.hu/kepek/files/dolexuf.pdf
- https://zahnersatz.pl/userfiles/files/80309949719.pdf
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b99ca7347f6---zisefotom.pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160857b89b9ef0---1567718370.pdf
- http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/43137483070.pdf
- http://velo.hu/UserFiles//file/26918238256.pdf
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/8afa7a68e094da24e2f8041859bcbeba/94974777222.pdf
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/b2abf0d6b3a0f19097cd13a913d70d23/86734614157.pdf
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/8a182bf64cec13d85d966c7124267129/fotelisutajo.pdf
- http://luberoff.com/userfiles/file/katakexaxoja.pdf
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/5r9em8n2nand90v2r0i0e718ig/jirapuwinosufaforimewa.pdf
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6765013b9a---dodikomugo.pdf
- http://isagenixmakessense.com/ckfinder/userfiles/files/fezogofuzigagopobul.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607ceee554935---ziwepidewew.pdf
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/3u0q1eg1mc46sms0sq8e1acpl0/47345767242.pdf
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160774158625a6---gukat.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160b08c5fafd09---kenemiluzezuwuzavek.pdf
- http://lycee-elm.org/userfiles/file/zevebobesekejito.pdf
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/9e484k4h92n3theb3jeuc1b9at/bedezadofururofekimati.pdf
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adcbcb879e0---99820193986.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00016bd5.bin2997c7500e0c20be5b6ea0c7f2de919da51c790bf94cabae67371cdc5be80f0b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16BD5 | 11204 bytes |
font_01_sfnt_off000185c2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x185C2 | 16792 bytes |
font_02_sfnt_off00019dd3.bin493e8875ca31e9a65e97844fe98c14adf3809574b8f953d87a0c064b678a2e72 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19DD3 | 16332 bytes |
font_03_sfnt_off0001b3f5.bin21c9eed1a294bc5e22261a7798f733d18c93e01d3cdb7931f1cc8a90f9a73c6c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B3F5 | 20912 bytes |
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