Malicious PDF — malware analysis report

Static analysis result for SHA-256 3481aed0a348bce5…

MALICIOUS

PDF

21.4 KB Created: 2020-03-23 10:39:26 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 37d679fbad4441c64b135c2e293f26da SHA-1: c5953dfffaedac7b35e74e81548e6b66a8eaa0d2 SHA-256: 3481aed0a348bce51c9e5aa26bf8e53c3e04eb0f1d19ec83843fb8ebeeff0a6f
112 Risk Score

Malware Insights

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

The PDF is identified as an image-only lure, typical of phishing campaigns. It contains numerous external links, suggesting a link farm designed to host malicious content or redirect users. The primary URL, http://carolinacountrydistillery.com/uploads/1/3/0/8/130814076/130814076.html#buscando+a+alaska+serie+descargar, is likely the initial point of contact for the attack. No scripts were extracted, but the structure strongly indicates a social engineering tactic to deliver a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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 21 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://carolinacountrydistillery.com/uploads/1/3/0/8/130814076/130814076.html#buscando+a+alaska+serie+descargar
    • http://nhvtencampment.nhcapcadets.org/uploads/1/3/0/7/130776599/pavosud.pdf
    • http://mobileautodetailingchulavista.com/uploads/1/3/0/4/130435906/7203066.pdf
    • http://circoestodo.com/uploads/1/3/0/6/130605299/mugoko_jonamafapadiki.pdf
    • http://mudtires.ca/uploads/1/3/0/7/130775803/jevevizelabis_gapomidelotu_bukoka_wobexal.pdf
    • http://moondustmountain.com/uploads/1/3/0/7/130738546/zujadopaburo-kuxepidi-warikolo.pdf
    • http://bennettdrawing.com/uploads/1/3/0/2/130272481/ec6e566229444.pdf
    • http://blingmyself.com/uploads/1/3/0/6/130604874/6270171.pdf
    • http://pmckfunctionalfitness.com/uploads/1/3/0/3/130323984/bewedasut-puxetafiminimit-jepagetikugepom.pdf
    • http://amksecurities.com/uploads/1/3/0/7/130740591/7721631.pdf
    • http://limpiezasd.com/uploads/1/3/0/5/130538880/ad3abaf7.pdf
    • http://boulderskincaresanctuary.com/uploads/1/3/0/7/130776229/2116835.pdf
    • http://creativepropertysolutions.org/uploads/1/3/0/7/130738650/gidir.pdf
    • http://visionary-affairs.com/uploads/1/3/0/4/130483741/zumomoderepi_mapoxe_porok_gojiwazepolik.pdf
    • http://snjconstruction.org/uploads/1/3/0/7/130739632/5893050.pdf

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