PDF malware analysis — malicious · 551d80b7f5fc2615

MALICIOUS

PDF

63.0 KB Created: 2020-12-17 05:13:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 716c3ad3ed2260ac128662692d85b1f0 SHA-1: 69373b165f802b3dfcac254fb9773c94f03cc6bd SHA-256: 551d80b7f5fc26154575b5196760af30e84dff61871706b1c4a08abfc9108683

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous external links, a technique often used for SEO manipulation or to direct users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent. The presence of embedded URLs and the PDF_URI heuristic further support the conclusion that this document is designed to redirect users to potentially harmful external resources.

Machine Learning

Nyx PDF Classifier malicious score 0.8525

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One 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://traffnew.ru/strik?utm_term=te+extra%25C3%25B1o+amor+frases
- https://dujizajep.weebly.com/uploads/1/3/4/7/134704211/3298942.pdf
- https://cdn-cms.f-static.net/uploads/4377925/normal_5f8ddd708eae1.pdf
- https://cdn-cms.f-static.net/uploads/4365552/normal_5f8742c8798f9.pdf
- https://cdn-cms.f-static.net/uploads/4378404/normal_5fd8fde1d1dd9.pdf
- https://cdn-cms.f-static.net/uploads/4374686/normal_5f8d60bcc825f.pdf
- https://cdn-cms.f-static.net/uploads/4411709/normal_5fc3561ea374a.pdf
- https://cdn-cms.f-static.net/uploads/4366036/normal_5f8aec4739ed5.pdf
- https://uploads.strikinglycdn.com/files/d6487142-2aad-4208-ac18-8dbb7a71eb25/minecraft_freeze_time_mod.pdf
- https://s3.amazonaws.com/wilugugo/mudedokapebiruzusumepota.pdf
- https://s3.amazonaws.com/mikibetiv/social_adjustment_definition.pdf
- https://uploads.strikinglycdn.com/files/4d927d18-3d43-4302-a495-7a291530bbc8/whirlpool_duet_steam_washer_manual.pdf

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