MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous embedded URLs that point to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://cructi.ru/uplcv?utm_term=liver+function+labs
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160813787de680---sotunoxamebeji.pdf
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/b9gl4rc3cl3qac3rns7gn18146/7452621968.pdf
- https://memoservicesrl.it/file/86295411789.pdf
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084beeca0b93---ferumanaxepol.pdf
- http://pileshoppen.dk/userfiles/file/6958877824.pdf
- http://csptech.net/admin/userfiles/file/wawili.pdf
- https://ctsgroups.asia/images/file/43956442129.pdf
- http://vankouwenenmastop.nl/UserFiles/file/4058962535.pdf
- http://andlupa.com/userfiles/file/31938388562.pdf
- http://tubietelbar.hu/uploadfile/35128230961.pdf
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091c8d7a17f1---55270302632.pdf
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/5c112540789ce72d24190bf6be970d9b/67588647429.pdf
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/5q5urjabkvsu5qjkpqiht9l7g7/13884379795.pdf
- http://gourmethousemacau.com/UploadFilesfile///31088428468.pdf
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/16092b36a7a339---88309356379.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16074482b90f28---58500678042.pdf
- http://policylic.com/uploads/files/17444548825.pdf
- https://arch.ua/ckfinder/userfiles/files/kegujamexu.pdf
- https://cicadit.ro/UserFiles/file/27783044932.pdf
- http://simkoongschool.com/uploads/editer/files/34728927439.pdf
- https://jamuiboe.com/webroot/upload_media/wasizevofupa.pdf
- https://acavacecio.it/userfiles/files/wozubaxuvitesakagu.pdf
- http://mu-rrrc.com/userfiles/file/kefov.pdf
- http://gemculture.com/userfiles/file/14916948165.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_off0000f12f.bin9cd149705737ff0ecacfbff8eff9faefdd70298ee6b64af8e7ec216f02660df7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF12F | 10592 bytes |
font_01_sfnt_off0001098a.binaf3f5316cbd0a03c7117c3201eec6912345840142a056455401dc9ad69d127a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1098A | 17768 bytes |
font_02_sfnt_off00013800.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13800 | 16792 bytes |
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