Malicious PDF — malware analysis report

Static analysis result for SHA-256 1775fe5f66e644a3…

MALICIOUS

PDF

22.1 KB Created: 2020-04-08 16:04:45 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: edd8f070a7fbc7560ddb4b7631a67b8d SHA-1: 893a789852458b34918174aa60a704f3342efe20 SHA-256: 1775fe5f66e644a32d8edebba372b5f81d740df101aa6b9c3998a2cbacf6d616
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF is identified as a malicious image-only lure, typical of phishing campaigns. It contains a large number of external links, suggesting it's part of a link farm designed to distribute malicious content or redirect users to phishing sites. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 22 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://christinafriedle.org/uploads/1/3/0/5/130589310/130589310.html#que+es+licenciatura+en+mercadeo+internacional
    • http://electrical-education-enterprises.com/uploads/1/3/1/3/131380078/6111788.pdf
    • http://hoopsforadam.net/uploads/1/3/0/6/130605084/1106365.pdf
    • http://youarethevariable.com/uploads/1/3/0/7/130776629/cd9c117e7216de3.pdf
    • http://johnhinckley.net/uploads/1/3/0/4/130491752/sifowimipitovosuz.pdf
    • http://shelterislandsupermarket.com/uploads/1/3/0/2/130291649/gavabas.pdf
    • http://grand-fruits.com/uploads/1/3/0/8/130814643/131592.pdf
    • http://sweetpartyibiza.com/uploads/1/3/1/3/131381544/3285037.pdf
    • http://austinmaloney.net/uploads/1/3/1/3/131381134/f1abcd2.pdf
    • http://odessafoundationrepairpros.com/uploads/1/3/0/6/130639745/d51136.pdf

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