PDF malware analysis — malicious · c615921bb0954311

MALICIOUS

PDF

35.6 KB Created: 2021-09-20 20:33:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31

MD5: b9adf2691a930e6dd37cdb7fe3534d85 SHA-1: 75ba286d1b50646ed6195d564a4177a5f2845a8b SHA-256: c615921bb0954311992c5f3031d0713ec09b9c4aabf65501021d646b90619912

114 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by ClamAV and an ML classifier. It employs an image-only lure, typical of phishing, with a clickable action pointing to an external URL. The document body is heavily obfuscated, but the presence of embedded URLs and the heuristic firings strongly suggest a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.7249

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE

PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 35 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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://crewmak.ru/uplcv?utm_term=mini+militia+1+apk PDF link annotation
- http://alfatreyd-mebel.ru/archive/images/file/mivijemisav.pdfIn PDF document text
- http://oroblupiscine.it/userfiles/files/39007821651.pdfIn PDF document text

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