Malicious PDF — malware analysis report

Static analysis result for SHA-256 565e0e233e9c08b3…

MALICIOUS

PDF

39.2 KB Created: 2020-11-19 10:13:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 76ea9bd0b3b0d005d578cf2cee200e5e SHA-1: 6a87836d343be2a3319668e06523b2b17f93444b SHA-256: 565e0e233e9c08b3b684c138b90de39db1556f8a2705694569ecc5c0e29bec32
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its small size and image-only content, typical of a screenshot designed to hide clickable actions. It contains numerous external links, with at least one pointing to a suspicious domain ('trafffe.ru') and others hosted on Weebly, suggesting a link farm or redirection mechanism. The ClamAV detection and ML classifier further support its malicious nature, likely serving as a dropper or redirector to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7261

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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 39 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://trafffe.ru/wb?keyword=5%20point%20likert%20scale%20pdf PDF link annotation
    • https://sotokogel.weebly.com/uploads/1/3/4/2/134266154/wopevuzulutezi.pdfIn PDF document text
    • https://gujodoludota.weebly.com/uploads/1/3/2/6/132681740/ef825c0.pdfIn PDF document text
    • https://sisaseno.weebly.com/uploads/1/3/0/7/130776680/sojako-wiveworaxop.pdfIn PDF document text
    • https://pojetepanale.weebly.com/uploads/1/3/4/3/134361345/ratedid-maveva.pdfIn PDF document text
    • https://mubuzetuwifo.weebly.com/uploads/1/3/4/7/134703000/3109600.pdfIn PDF document text
    • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/d3912.pdfIn PDF document text
    • https://fologonalufofu.weebly.com/uploads/1/3/4/6/134694067/fufizuriderixab.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/4809849379.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/828a6d15-d92e-4f47-ae72-a30f6400a79d/stormbreaker_replica_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/district_118_wauconda_calendar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45ac2789-7d16-42dd-b7a8-74401c7caf92/44902371486.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/64637827509.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/the_giver_jobs_and_page_numbers.pdfIn PDF document text

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