MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to compromised CMS uploads and disposable hosting, indicating a link farm designed to redirect users to malicious content. The presence of these links suggests an attempt to distribute malware or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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://laborke.ru/uplcv?utm_term=environmental+problems+in+the+philippines+pdf
- http://namngonviet.vn/user-/files/75188743486.pdf
- http://designbeginnings.com/upload/file/vopufexu.pdf
- http://jiuxingchaoshi.com/uploads/file/282335394899.pdf
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/vb590ltqt00mlavlilrhsm08e1/96149537293.pdf
- https://feltshoe.com/userfiles/file/rumuzi.pdf
- http://ducthanggroup.com/webroot/img/files/buxirere.pdf
- http://mazurubezpieczenia.pl/zdjecia/fck/file/50483957920.pdf
- http://wernersuarez.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pudonamezituku.pdf
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/a5759ac2f81b605e42475af0fd86b289/78357952626.pdf
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160832fec1cabd---83133110629.pdf
- http://inbeeldt.nl/userfiles/file/xudodupizujejugoko.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fe92650b73---vaged.pdf
- https://thucphamtruongxanh.com/Upload/files/84100457588.pdf
- http://geniuschulatutor.com/userfiles/files/fisolutusiniturowowejog.pdf
- http://archissimo.eu/userfiles/files/65549320503.pdf
- http://hubbardfamilycircle.com/clients/62940/File/58285430949.pdf
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/en3d0sv27k5iocrtetmsr5r58u/17575742854.pdf
- http://taiwanglassgroup.cn/userfiles/file/kibofigode.pdf
- http://palakkadtourism.in/ckfinder/userfiles/files/penovefamodiwugafofotuk.pdf
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c276ffb06bd---66312189638.pdf
- http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/m6duopb047d553ftbuf8oe6fh2/18589804005.pdf
- http://barsugo.com/ckfinder/userfiles/files/63348519093.pdf
- http://redhillplantation.com/clients/1/1a/1a02e1fabf1298af97853074613e4b20/File/karikijemapow.pdf
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607986faa38a8---71063582340.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/c37a5686eb87f09cfc24c4d30ab2091d/vaziz.pdf
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/567e9a080720155c56a80c6d2dd4356e/suwurofeso.pdf
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/8648ae7e97ea64589b7e4b81b33086e6/tededosuvexukugizeniv.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_off0000d59f.bind762e0e2ed39791a8b2ae3bbfaafe2e959d6b800ce9da09f24811778ad2456fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD59F | 10952 bytes |
font_01_sfnt_off0000ee8e.binfd6337865deaf52e06f098e02ac81c061ff4163ef5c071dde83bfc4b782e4366 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE8E | 17848 bytes |
font_02_sfnt_off00011d1c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D1C | 16792 bytes |
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