Malicious PDF — malware analysis report

Static analysis result for SHA-256 3677d10752bf1550…

MALICIOUS

PDF

50.6 KB Created: 2020-11-11 01:13:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e7630730ec64e7e07c4b93bfa4e95772 SHA-1: 13431e5e3209e54b51108b113d39150f75f13eb8 SHA-256: 3677d10752bf1550fd1e3c89966ca35b77e2deba748acbebdd1cea69d79d898e
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical for phishing or malware distribution. It contains multiple embedded URLs, including one pointing to a link farm, suggesting an attempt to redirect users to malicious content. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6098

Heuristics 5

  • 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
  • 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 50 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://trafficel.ru/aws?keyword=hurdy+gurdy+plans+free
    • https://mijisurux.weebly.com/uploads/1/3/1/0/131070147/samerez.pdf
    • https://fiwisiroveton.weebly.com/uploads/1/3/4/3/134339953/kefubepiwam.pdf
    • https://zegikawa.weebly.com/uploads/1/3/4/6/134640481/7c3b9b445.pdf
    • https://lesavudipuvu.weebly.com/uploads/1/3/4/3/134338744/8934179.pdf
    • https://cdn-cms.f-static.net/uploads/4387826/normal_5f91f040df65a.pdf
    • https://uploads.strikinglycdn.com/files/0ff57abe-8d1f-4ae5-93fe-3341de54a3df/sikaroloxivubaw.pdf
    • https://s3.amazonaws.com/wofaxil/rebel_flag_seat_covers_for_trucks.pdf
    • https://s3.amazonaws.com/pusori/tutimimokameman.pdf
    • https://s3.amazonaws.com/bawalidamovidud/veterutozig.pdf
    • https://s3.amazonaws.com/zedudo/41785617605.pdf

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