Malicious PDF — malware analysis report

Static analysis result for SHA-256 f84c9a3876f82f34…

MALICIOUS

PDF

20.9 KB Created: 2020-04-06 03:12:06 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 54f96420b9a4f753039cc7c5046a2dde SHA-1: 15d0449678be86a88284bc019abd09ec0bf0bd42 SHA-256: f84c9a3876f82f34978bee6adf6f24717d42f2c311af83e32324f1c0bed02c0b
82 Risk Score

Malware Insights

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

The PDF file is identified as a screenshot lure, typical of phishing campaigns. It contains numerous external links, with the primary one being http://chefhanken.com/uploads/1/3/0/7/130739927/130739927.html#metodologia+para+dise%C3%B1o+web. The heuristic PDF_SEO_LINK_FARM indicates a large number of similar PDF links, suggesting a link farm used to distribute malicious content or host phishing pages. No scripts were extracted from this sample.

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 20 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://chefhanken.com/uploads/1/3/0/7/130739927/130739927.html#metodologia+para+dise%C3%B1o+web
    • http://agelessfitness.net/uploads/1/3/0/4/130489431/dezuj-tuwazis-fodixaraxu-xugoxakanedus.pdf
    • http://harveydanielsonfarm.com/uploads/1/3/0/5/130588370/kakujakajonuko-bigutosixu.pdf
    • http://koodayta.com/uploads/1/3/0/6/130639251/7202062.pdf
    • http://passionwithpurposepsu.org/uploads/1/3/0/7/130739549/lelesar-jigijunobowuz-lapur-zabixe.pdf
    • http://mssarkisclass.com/uploads/1/3/0/9/130969808/cc81396539.pdf
    • http://makervet.com/uploads/1/3/1/0/131069843/4430424.pdf
    • http://texasoilfieldmafia.org/uploads/1/3/0/9/130969791/4956789.pdf
    • http://graceawakeningchurch.com/uploads/1/3/0/6/130640044/desalufe.pdf
    • http://unitedecap.com/uploads/1/3/0/2/130272363/9ebe37a6a.pdf
    • http://modellodevelopment.com/uploads/1/3/1/1/131164180/nepipatun.pdf
    • http://cunninghamfirearms.com/uploads/1/3/0/7/130775504/wazikarum_segifukip_posaburefufav.pdf
    • http://thirdtplace.com/uploads/1/3/0/5/130539494/vebuwurowag_jusifobezezepe_gimuja_xirorunepobixok.pdf

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