MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest this PDF is malicious, likely a phishing or malware distribution lure. No scripts were extracted, but the structure and URL patterns are consistent with phishing campaigns.
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=mandelbaum+the+meaning+of+sports+free+pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/fb06fa9014a732c17c6c036723dd6dd2/tisirawaw.pdf
- http://bkbflooringusa.com/userfile/abbey/file/favekeditilizijowevepo.pdf
- http://paillasse.hu/userfiles/file/devewuweko.pdf
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607fdcecc26b3---zomumorekilozuzirisedefod.pdf
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16098af0e35dd2---16861300471.pdf
- https://activepymes.com/pub/file/58340555883.pdf
- https://kuzeyilac.com/resimler/files/fonugupupejenupodusele.pdf
- http://tmtechvn.com/webroot/img/files/pubasokumuwumemaketowona.pdf
- https://guapa2.com/admin/fck/file/99510294076.pdf
- http://foto-preiss.at/upload_files/files/topomurofasi.pdf
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af75f75d4e0---rezitilababibidajowobop.pdf
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a4cce49009---suvexixutedidufel.pdf
- http://phantasos.org/userfiles/file/92285199963.pdf
- https://lawyerupsmart.com/tempimg/file/49044646265.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079fa195011b---wekamik.pdf
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d520475b3b---61238610105.pdf
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ad028ab3598---22514099649.pdf
- http://agcslohian.com/userfiles/file/28326367853.pdf
- http://sangiorgioautoservizi.com/userfiles/files/94480264270.pdf
- https://thedestinbeachhouses.com/wp-content/plugins/super-forms/uploads/php/files/6fd3c8f8b868900c20eb6605d36734dd/76686294878.pdf
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b271ee596d2---95058695128.pdf
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/i1h339et9pgp8sl3473esvn081/sasotobun.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160926a651723e---naxopufamititurenepo.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/nnean8oett1ccnv4kl0tu19b04/tilixikeb.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_off0000ea89.bincf30e9c022d2fcc48e3205515fc978ff511f719ee94617f0c1c58956206cd3d7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA89 | 16684 bytes |
font_01_sfnt_off000115b9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115B9 | 16792 bytes |
font_02_sfnt_off00012dd0.bin6873920dc2f393f38884afd350a98f631f15c105eafe33aef2fe40ac17eca108 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DD0 | 11180 bytes |
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