Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b6c7c01dd36fc91…

MALICIOUS

PDF

16.6 KB Created: 2020-11-08 02:35:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2b95ee87356c55d53154070ba50d72a SHA-1: 52846b1b1d33291c0c948e18d8700a9c8487286d SHA-256: 8b6c7c01dd36fc91cbb93f716bf2a676cc142791bfa4edc3585d1fe85d22670a
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical of phishing campaigns, containing a clickable link to 'trafftec.ru'. This URL, along with numerous other PDF links, suggests an attempt to redirect the user to malicious content or a phishing site. The ML classifier strongly indicates malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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 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.
  • 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://trafftec.ru/aws?keyword=fnaf+3+apk+full+game
    • https://pudarafuweza.weebly.com/uploads/1/3/4/4/134479559/libiwojezasineritag.pdf
    • https://lafibovuvi.weebly.com/uploads/1/3/4/6/134653173/b940ef01.pdf
    • https://s3.amazonaws.com/leguvefu/colon_worksheet_with_answers.pdf
    • https://s3.amazonaws.com/gajejasa/cash_gifting_system.pdf
    • https://s3.amazonaws.com/vuxalirudidel/91840876566.pdf
    • https://s3.amazonaws.com/fukezavazuj/unturned_france_clothing_ids.pdf
    • https://s3.amazonaws.com/piradi/temuxovoboje.pdf
    • https://gexevoj.files.wordpress.com/2020/11/definition_and_basic_concepts_of_biosystematics_and_taxonomy.pdf
    • https://s3.amazonaws.com/wolina/pifumuf.pdf
    • https://s3.amazonaws.com/xabalaru/welcome_address_association_inaugural_function.pdf
    • https://s3.amazonaws.com/xisefowu/does_pegasus_have_a_unicorn_horn.pdf
    • https://uploads.strikinglycdn.com/files/e1928c22-991e-42e7-9000-5ff2f6428960/99537928937.pdf
    • https://s3.amazonaws.com/vonuxagupeduze/northern_railway_reservation_form.pdf