Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dda0c0cab31eae0…

MALICIOUS

PDF

17.9 KB Created: 2020-04-05 11:28:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: dedb970487fce3603ada87c1288cdf05 SHA-1: ba37581e00f1a2a7009345869260e64cb46de878 SHA-256: 9dda0c0cab31eae05759aa944e3042d7954a0d77be217e085ecf7fcd0a3bd970
112 Risk Score

Malware Insights

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

The PDF is an image-only lure, typical of phishing campaigns, containing numerous links to external PDF files hosted on various domains. The primary heuristic indicates it's an image-based lure with an action trigger, likely directing users to a malicious website. The ML classifier strongly supports its malicious nature. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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 17 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://floorfitni.com/uploads/1/3/0/5/130588850/130588850.html#gestion+de+procesos+de+negocio+pdf
    • http://pamswaycreations.com/uploads/1/3/1/3/131381109/kiguvid_polutoko_supopodu.pdf
    • http://redeemeryouth.net/uploads/1/3/0/6/130621952/8369337.pdf
    • http://alittlegroomroom.org/uploads/1/3/0/4/130476214/3159386.pdf
    • http://njeventind.info/uploads/1/3/0/6/130604789/gunumibu_fawobur.pdf
    • http://atlasaces.com/uploads/1/3/0/4/130488741/557f8b5b.pdf
    • http://simplecatholicism.org/uploads/1/3/0/3/130323934/7003884.pdf
    • http://aikidokenkyukaipennsylvania.org/uploads/1/3/0/5/130589374/sedozumowi_matodejaposo.pdf
    • http://msielectricalsupplies.com/uploads/1/3/0/6/130639537/1033642.pdf
    • http://odroslore.com/uploads/1/3/0/5/130588503/pepogatiwer.pdf
    • http://austinpetmonth.com/uploads/1/3/1/1/131163564/1c41ae.pdf
    • http://queensvisionafricanapparel.com/uploads/1/3/0/7/130775982/buxekevinajo-mifukuzizev-sibugik.pdf
    • http://mehereen.com/uploads/1/3/0/3/130379377/jugupenawaribu.pdf
    • http://elgibhor.org/uploads/1/3/0/5/130539783/pojibavuvuf.pdf

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