Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dfbcb6505c0752b…

MALICIOUS

PDF

16.6 KB Created: 2020-11-01 10:31:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45de41ccf9ceb7311595757b9a3f1e16 SHA-1: 23daa291d7318e990387f816737ce6c2bd66617f SHA-256: 6dfbcb6505c0752b50094136fc1d217663ae3a0681f73793c637bab3d10d60e8
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical of phishing campaigns, designed to trick users into clicking a link. The embedded URL, https://gettraff.ru/aws?keyword=belt+drive+ebike+2020, is flagged as a malicious redirector, indicating a likely attempt to lead the user to a malicious site. The ML classifier also strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9958

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 16 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://gettraff.ru/aws?keyword=belt+drive+ebike+2020
    • https://cdn-cms.f-static.net/uploads/4370989/normal_5f894a375891c.pdf
    • https://cdn-cms.f-static.net/uploads/4366400/normal_5f8779032d447.pdf
    • https://cdn-cms.f-static.net/uploads/4366993/normal_5f87579f6b102.pdf
    • https://cdn-cms.f-static.net/uploads/4369916/normal_5f9e45244a0fc.pdf
    • https://cdn.shopify.com/s/files/1/0502/2570/9211/files/anelace_binary_clock_instructions.pdf
    • https://cdn.shopify.com/s/files/1/0504/4902/3145/files/79730777360.pdf
    • https://cdn.shopify.com/s/files/1/0430/9558/9018/files/citi_field_seating_map_with_rows.pdf
    • https://cdn.shopify.com/s/files/1/0503/3859/5012/files/fmea_4th_edition_ranking_table.pdf
    • https://cdn.shopify.com/s/files/1/0502/3861/9813/files/35400872761.pdf
    • https://cdn.shopify.com/s/files/1/0483/2319/9140/files/76023478060.pdf
    • https://s3.amazonaws.com/mejados/35086758372.pdf
    • https://s3.amazonaws.com/gumagabu/puzzle_and_dragon_guide.pdf

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