MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, specifically as a phishing or trojan delivery mechanism. It contains a large number of embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the nature of the heuristics strongly indicate an attempt to deliver a secondary payload or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://queure.ru/uplcv?utm_term=the+blood+of+the+covenant+is+thicker+than+the+water+of+the+womb
- http://clarasonic.com/upload/file/23779926187.pdf
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/kb3mde9scb5f129de914lb8gn3/jesipiwuxox.pdf
- http://maychamsocda.vn/images/userfiles/file/93568337862.pdf
- http://bikipvuikhoedep.com/app/webroot/files/editor_upload/files/67259019850.pdf
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/3tthkqbta7tkatelt8rjme47ap/zoxiga.pdf
- https://taevlingar.se/images/pages/file/napemagi.pdf
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b9b010eb93f---bomuxoz.pdf
- http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/c349ba9f2680e63a1a25bff6e9761ef2/76691308981.pdf
- https://kultmotor.hu/images/files/nogulawezesifogatogo.pdf
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/c02ecdc0cd50b8cecab6a817de759c01/85167756314.pdf
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/fba20f113dfaf2b7e47441773a61b912/rilozepi.pdf
- http://www.jindatunnel.com/up_files/file/40220409150.pdf
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072e8cc24463---taposi.pdf
- https://jordan.si/dokumenti/file/fepajimo.pdf
- https://tungafilm.com/dorceiys/ckfinder/userfiles/files/76078878686.pdf
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/9d7b852d883dbee5b194c59fe6fce673/valalegufusekopulogexid.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160aa0ba066451---zasakukinugegukisopimu.pdf
- http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608352d1258b9---50645445319.pdf
- https://fajndoktor.cz/images/file/files/2635799318.pdf
- https://jagominum.com/contents//files/87040878181.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/7d9fe9bca6ca940c0e88f36d4e3ec3d4/80270398821.pdf
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d17cc4c753---28731146396.pdf
- http://lumieretvie.com/userfiles/file/79338185053.pdf
- http://computergramm.com/userfiles/file/naboto.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_off0000f49e.bind49f8bd9d10d65152cb70961d29ae159769b0b8c00e2f5e42438072f19926d72 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF49E | 11088 bytes |
font_01_sfnt_off00010e5d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E5D | 16792 bytes |
font_02_sfnt_off0001266f.bind9b178c3f369a44d47bbcbec3b37a084273d5f911007100049c6cb3be7255a05 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1266F | 17832 bytes |
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