MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution intent. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to redirect users. The presence of embedded URLs and the nature of the heuristics strongly suggest this PDF is part of a phishing campaign, likely using spearphishing attachments as the initial access vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://krisoc.ru/uplcv?utm_term=alister+mcgrath+pdf PDF link annotation
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d761afced---70600608167.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16098f3100a588---16033162749.pdfIn PDF document text
- https://www.prieur-equipement.com/ckfinder/userfiles/files/14447609806.pdfIn PDF document text
- https://annjulieskarpmo.com/userfiles/file/27613652026.pdfIn PDF document text
- https://airtelco.com/data/users/_/email/files/52916212695.pdfIn PDF document text
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/c86f6a17c36069b9ea4c1622c5b8c1e5/79476728709.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d93ad978a87---pedudex.pdfIn PDF document text
- http://nghieuphong.com/upload/files/debebijolato.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/8g8v8cbh1hbam03p7rkm1k4lr3/mebotorokikanuzide.pdfIn PDF document text
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/90b6b3b79e1f86b2ea91d8c4ab2748c0/miduruf.pdfIn PDF document text
- http://4bx.pl/public/file/tikolijonin.pdfIn PDF document text
- http://kalkulacka-hypo.cz/userfiles/files/68929717881.pdfIn PDF document text
- https://aashianarealty.com/file/gekugoxalaxidubalu.pdfIn PDF document text
- https://samoinstitute.mn/uploads/assets/file/petoxonujokimaxipiju.pdfIn PDF document text
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/1608ece36d2b55---walazeworev.pdfIn PDF document text
- http://blackivy.pl/userfiles/file/13381235692.pdfIn PDF document text
- https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/4d22e268a191a1d8e2206946e049640c/69981773988.pdfIn PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160959695cfe35---jasofidedemuxem.pdfIn PDF document text
- https://ost-fogging.com/upload/files/66743500409.pdfIn PDF document text
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/zapelakinisuxofo.pdfIn PDF document text
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/37k6oobb30ja4bbu659i7n57lq/vibagawa.pdfIn PDF document text
- https://economiadecomunion.com/ckfinder/userfiles/files/92144120149.pdfIn PDF document text
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/d2a8b132786cd8bbbb803efe1285b76c/vibejovomolo.pdfIn PDF document text
- http://eau-msu.ru/ckfinder/userfiles/files/xuvulekora.pdfIn PDF document text
- http://e1pl2.nazwa.pl/busy/fotki/file/lulofariwiwafujesigeti.pdfIn PDF document text
- 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_off0000dedd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEDD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f6f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6F4 | 10824 bytes |
SHA-256: 41cc2f8736cb0d1702bcb18c9128ae1e7efb78d03bf101075af73835bc980778 |
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font_02_sfnt_off00010fb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FB5 | 17544 bytes |
SHA-256: 2cfe94f3da5bb55dda34d54448affc7cc5347398c9e9ae037b0fb4b58a33127b |
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