Malicious PDF — malware analysis report

Static analysis result for SHA-256 56b88da7323b3ef4…

MALICIOUS

PDF

37.6 KB Created: 2021-02-20 17:05:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d3775d16b77e4c243748b7c1d14d428 SHA-1: fadfcd72d36ccda62aa90dc1acf1684c31ef7a6e SHA-256: 56b88da7323b3ef41c8deb3771f3cc8780882d2534ec08d179d4a9f06b97ebad
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of a phishing lure. The heuristic PDF_IMAGE_LURE indicates it's an image-only document with an action trigger, typical for hiding clickable links. The embedded URL, https://maypoin.ru/aws?utm_term=my+favourite+things+john+coltrane+vinyl, likely serves as the initial point of contact for the malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9258

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 37 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://maypoin.ru/aws?utm_term=my+favourite+things+john+coltrane+vinyl
    • https://xasonametig.weebly.com/uploads/1/3/2/3/132303127/pomeragoverasaz.pdf
    • https://bibatajikoxego.weebly.com/uploads/1/3/5/3/135315017/7713830.pdf
    • http://axecheat7.xyz/rovalo4ufoj.pdf
    • https://rorujazikuje.weebly.com/uploads/1/3/1/3/131379225/cc649.pdf
    • https://zujujoweb.weebly.com/uploads/1/3/5/2/135297083/1035075.pdf
    • http://koolmaxt.online/64667298311b84tp.pdf
    • https://wopedibim.weebly.com/uploads/1/3/4/5/134585971/guwivadibigevusuga.pdf
    • https://warevinigipa.weebly.com/uploads/1/3/4/8/134898994/2807906701b3.pdf
    • http://francobusiness.com/5550960888471n
    • https://s3.amazonaws.com/dukexajuj/2013_chevrolet_volt_infotainment_manual.pdf

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