Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ffa95d2053e343e…

MALICIOUS

PDF

15.8 KB Created: 2020-03-28 04:48:12 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 2fda46864c6a4e8afb926cec653083ef SHA-1: 7d20a8234084be703604012f5954c5a8db30b63e SHA-256: 3ffa95d2053e343e453d77731ecf6d5cfe7622247dfd49deb687f25dafc51812
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 for phishing campaigns. It contains numerous external links, suggesting a link farm or SEO spam tactic. The primary redirect URL is http://mnmdata.com/uploads/1/3/0/8/130813448/130813448.html#maytag+neptune+washer+manual, which likely leads to a malicious site. No scripts were extracted, but the structure strongly indicates a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9578

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 15 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://mnmdata.com/uploads/1/3/0/8/130813448/130813448.html#maytag+neptune+washer+manual
    • http://www.aperitif-sticks.at/uploads/1/3/0/6/130605442/883796.pdf
    • http://redttube.net/uploads/1/3/0/7/130740434/lobivawexesow.pdf
    • http://thesaltcollective.net/uploads/1/3/0/6/130639241/rifitejuteru-vumidavobef.pdf
    • http://mountdoraphotographicworkshops.com/uploads/1/3/0/8/130814296/2566638.pdf
    • http://leeannlacerte.com/uploads/1/3/0/9/130969492/fisigixa.pdf
    • http://wrentham.shop/uploads/1/3/0/5/130588735/wovojabix.pdf
    • http://food2fun.com/uploads/1/3/0/6/130604720/d94cf1b18.pdf
    • http://mazaevaofficial.com/uploads/1/3/0/8/130813764/6967141.pdf

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