Malicious PDF — malware analysis report

Static analysis result for SHA-256 e55d0a9eb9535a44…

MALICIOUS

PDF

58.6 KB Created: 2020-11-19 14:48:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 828e079032c62d55787ecee89214b5be SHA-1: 1c16fded2e8f2c8843cb86af8a516ac80f958fd9 SHA-256: e55d0a9eb9535a44a078b430734fec093ee8b5b1dc289e0225f343b8c778f2ae
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only document with an action trigger, typical of a phishing lure. It contains an embedded URL pointing to 'traffnew.ru', which is likely used to redirect the user to a malicious site. The ClamAV detection and ML classifier further support its malicious nature, indicating it's a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6659

Heuristics 5

  • 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 58 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/aws?utm_term=alimentation+couche-+tard+inc+annual+report
    • https://diwapaxifok.weebly.com/uploads/1/3/4/4/134488462/6742852.pdf
    • https://cdn-cms.f-static.net/uploads/4405945/normal_5f9910f80959e.pdf
    • https://cdn-cms.f-static.net/uploads/4393345/normal_5fb6075832319.pdf
    • https://gujibimusexuwub.weebly.com/uploads/1/3/4/0/134042380/2803171.pdf
    • https://vurazomuloja.weebly.com/uploads/1/3/4/3/134322302/1e3f6dcdb8a.pdf
    • https://lajojixuvoporor.weebly.com/uploads/1/3/0/7/130738555/3b7ee7d8.pdf
    • https://jokonufukitis.weebly.com/uploads/1/3/4/3/134399540/4912477.pdf
    • https://pugiputofal.weebly.com/uploads/1/3/4/7/134740318/miwusoja_jorixezeni.pdf
    • https://uploads.strikinglycdn.com/files/6927a6aa-13bf-4a24-b726-f6ba1746e273/dupab.pdf
    • https://s3.amazonaws.com/saxefi/chief_bandit_guide_mapleroyals.pdf
    • https://s3.amazonaws.com/toliwudalamem/bapebabudikudajabevasap.pdf
    • https://s3.amazonaws.com/ruzumeb/tafemiwijimixaxofotoku.pdf
    • https://s3.amazonaws.com/sedimeraxufi/dehydration_lower_heart_rate.pdf
    • https://uploads.strikinglycdn.com/files/2dbc0f48-ca38-4943-b4da-75e4d0ede351/14038711281.pdf

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