Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba003178db03259d…

MALICIOUS

PDF

14.2 KB Created: 2020-05-25 23:47:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b3c189b850190eea325e508689d62df8 SHA-1: 2de1864363e408837082bfe237de918e671e8e54 SHA-256: ba003178db03259d4747c2bcd7584bd83dff70e8e096531a723723679bfe8a72
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF is an image-only lure, typical of phishing campaigns, designed to trick users into clicking embedded links. The heuristic PDF_SEO_LINK_FARM indicates a mass generation of external PDF links, suggesting a large-scale distribution effort. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, but the presence of numerous external URLs points to a delivery mechanism for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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 14 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 http://casnerchristian.com/uploads/1/3/0/8/130874238/130874238.html#raaz+full+movie+hd+hindi
    • http://mta-sts.distinctchurch.com/uploads/1/3/1/8/131856234/2816234.pdf
    • http://1ststeptolife.com/uploads/1/3/1/8/131857544/7570.pdf
    • http://lionambassadorsfamilyweekend.com/uploads/1/3/0/3/130379528/banaweboj.pdf
    • http://cmrmeetings.com/uploads/1/3/1/0/131070883/nesorolujafa-xanapajufoga-fedufedad-mabefexower.pdf
    • http://blake.business-facebook-covid19.com/uploads/1/3/1/1/131163667/gamexewured-jalepomet.pdf
    • http://myvita.net/uploads/1/3/0/6/130621703/c734e13a7c16a4.pdf
    • http://unicornwriting.com/uploads/1/3/0/5/130545098/fizoxuzizawawunap.pdf
    • http://cougarspray.com/uploads/1/3/0/3/130324037/a44820.pdf
    • http://strategicfinancialvision.com/uploads/1/3/0/2/130274199/8091d0c.pdf
    • http://lifestrav

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