MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was identified as malicious by a machine learning classifier and ClamAV, flagging it as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress sites and disposable hosting domains, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall detection indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://duext.com/wp-content/plugins/super-forms/uploads/php/files/b75eb2b46bb8b151d590a66bc8201fff/vomoker.pdf In PDF document text
- http://solemarservizi.it/userfiles/files/41131932264.pdfIn PDF document text
- http://longchimvac.net/app/webroot/uploads/files/26812281203.pdfIn PDF document text
- https://amursvoidom.ru/media/files/95509690662.pdfIn PDF document text
- http://portakalweb.net/home/portakal/public_html/ckfinder/userfiles/files/83119767900.pdfIn PDF document text
- http://kool-house.com/upload/editor/file/woneleveluketuguvebopepis.pdfIn PDF document text
- http://scales-center.com/shop/fck_file/file/87653986340.pdfIn PDF document text
- http://korytnica.net/data/files/nafizunifesoxeruvotadazif.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614280fe1b2b6---69599628352.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/54543850dc7e31a7dcdebf4f6f987c84/94216362041.pdfIn PDF document text
- https://gilbertems.com/videos/file/kakafuvegovonuzexaga.pdfIn PDF document text
- http://dobraukraina.org/sites/all/sites/dobraukraina.org/files/52550457718.pdfIn PDF document text
- http://nayyaralidada.com/alpha/ckfinder/userfiles/files/kolej.pdfIn PDF document text
- http://www.frank-diagn.hu/userfiles/files/gimunomijepavaxeruzabu.pdfIn PDF document text
- http://kenhuffbuilders.com/userfiles/file/83680260010.pdfIn PDF document text
- http://aedjtjdshbf.pretty-match.com/upload/files/sotuzuz.pdfIn PDF document text
- https://www.cdsale.org.au/application/third_party/ckfinder/userfiles/files/87009574494.pdfIn PDF document text
- http://twtime.com/uploads/files/202109051947257917.pdfIn PDF document text
- http://baove24h.org/upload/files/juvivixegu.pdfIn PDF document text
- https://rh-h1tapi-turbo.com/contents/files/72260758312.pdfIn PDF document text
- https://bank-kredit.at/ckfinder/userfiles/files/libogosobonadakul.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=disable+app+apk+no+rootPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d3bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3BC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ebd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBD3 | 10476 bytes |
SHA-256: 3dca908581dff166b3384e3a32001f50859a9afbe87ddd92e91b1a9fc714276d |
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font_02_sfnt_off00010387.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10387 | 17556 bytes |
SHA-256: fc3e932119f3ee431a932f97424b2bb81d49523c2f0c0488a8dbe455dc35b3b4 |
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