Malicious PDF — malware analysis report

Static analysis result for SHA-256 bec197f2caf7efa3…

MALICIOUS

PDF

38.0 KB Created: 2021-03-22 14:29:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67845b4d95f6f2bfef82617bb265d51b SHA-1: f8c2bcb6e6ee7bec110a9654ab3b9f8cbfabe0a5 SHA-256: bec197f2caf7efa3ac83b3a8737adcca66996f1975f0733f9522d4109d48a0c6
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a phishing lure. It contains an image that likely hides a clickable link to the URL https://baarspo.ru/award?keyword=english+grammar+in+use+elementary+supplementary+exercises+pdf, which is typical for spearphishing attachments.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6430

Heuristics 4

  • 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 38 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://baarspo.ru/award?keyword=english+grammar+in+use+elementary+supplementary+exercises+pdf
    • http://naturmilans.fun/mozibikisisij0784.pdf
    • http://dfds.in/bigigewesotudrj47j.pdf
    • http://50offstore.info/what_does_full_service_mean_at_a_gas_station0snfp.pdf
    • http://lorubuxetorifa.medianewsonline.com/mini_cooper_service_shops_near_me.pdf
    • http://pivojowemetobiv.mywebcommunity.org/alimentos_con_carbohidratos_complejos.pdf
    • http://tevaruv.sportsontheweb.net/nesem.pdf
    • http://gawajix.iblogger.org/40353544696.pdf
    • http://rawiduti.medianewsonline.com/belkin_ac1600_range.pdf
    • http://sikadakomog.epizy.com/47383825341.pdf
    • http://pabewuvuxaf.onlinewebshop.net/10041487722.pdf
    • https://8b2103c5-345b-48fd-98e3-f19c90c4efd0.filesusr.com/ugd/0e2875_7aa888009cb0450fb5841d016ecf955f.pdf?index=true

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