MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as 'Pdf.Phishing.Trojan' and a machine learning classifier indicated a high probability of maliciousness. Several heuristics indicate the PDF acts as a link farm, pointing to potentially compromised websites, including one on a WordPress upload storage. The embedded URLs suggest an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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 http://profitoolinfo.ru/ckfinder/userfiles/files/vapin.pdf
- https://radio-aurea.eu/files/file/matokotisufa.pdf
- https://bhavanarayanaswamy.org/userfiles/file/35153474567.pdf
- http://kientrucphatloc.com/upload/files/bapubikara.pdf
- http://kingbikeonline.com/images/upload/File/12186637214.pdf
- https://tasteadmin.com/ckfinder/core/connector/php/custom/wysi_uploads/files/meximulilil.pdf
- http://abwlanham.com/uploads/files/kenixuzokes.pdf
- https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/lukodafuv.pdf
- https://durimawar.com/contents/files/lividobejik.pdf
- http://wyadonline.com/userfiles/file/rapokuz.pdf
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/16135f8fe60b06---35580056099.pdf
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613259739040d---79949404266.pdf
- http://secondhandgraphics.com/usrfiles/file/diladepi.pdf
- https://feldmann.pl/userfiles/file/diraloz.pdf
- http://classicalgardenfountains.com/uplds/file/selitazoxajiwo.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1b3941e5910914c00c54f9abbc4a06a7/piwibiwuje.pdf
- http://kingsfci.com/userfiles/file/84422226688.pdf
- http://yanartekstil.com/firma/files/92731930155.pdf
- http://rungruangsteel.com/public/upload/userfiles/files/semilesudoluvegafirari.pdf
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/82604abb42312f29a7c20157d3aadfea/53146876486.pdf
- https://chilegastronomia.cl/uploads/userfiles/files/raxetaziliselunudigi.pdf
- http://hoanggiaphatland.com/uploads/image/files/jajivawufefojujedag.pdf
- http://theheavent.com/userfiles/files/27574075081.pdf
- https://sukaunited4d.vip/contents/files/2694575085.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=winning+eleven+soccer+game
- 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_off0000d423.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD423 | 16792 bytes |
font_01_sfnt_off0000ec3a.bin5e827b856bab9a9b18b10ca6ab8c6881c7afbc91c07387f97efe15bfcb9875f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC3A | 10532 bytes |
font_02_sfnt_off00010431.bina7b05c80f8968f14765e8ce1942dbb89af15942547ec270e379688e68f72b1d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10431 | 17688 bytes |
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