Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6a274750da8446a…

MALICIOUS

PDF

15.4 KB Created: 2019-04-30 07:54:07 +01:00 Authoring application: mPDF 5.7
MD5: 2ee49ee5cdab396734e03cc4d7f90360 SHA-1: f845c7e8dd9d84a95140b3c1cb774a1e4abdc769 SHA-256: f6a274750da8446a1ad407bcffa6538f19e8f5a1fb2279b8e280579df1138699
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which is a strong indicator of a link farm or SEO poisoning attack. The ML classifier also flagged this PDF as malicious with high confidence. While the specific URLs are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent to redirect users to potentially harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

Heuristics 2

  • 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.
  • 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://unieoooq.linkpc.net/14e04e54e14e04e0/Prince-Ivan-by-Peter-Morwood.pdf
    • http://unieoooq.linkpc.net/54e34e94e94e14e7/Lord-Peter-Views-the-Body-Lord-Peter-Wimsey-4-by-Dorothy-L-Sayers.pdf
    • http://unieoooq.linkpc.net/14e74e34e44e04e2/Lord-Peter-Views-the-Body-Lord-Peter-Wimsey-4-by-Dorothy-L-Sayers.pdf
    • http://unieoooq.linkpc.net/44e64e24e84e24e6/Darren-Shan-Series-Collection-Blood-Beast-Demon-Apocalypse-Wolf-Island-Death-s-Shadow-Dark-Calling-Lord-Loss-Demon-Thief-Slawter-Bec-Hell-s-Heroes-And-Many-More-by-Darren-Shan.pdf
    • http://unieoooq.linkpc.net/44e64e84e64e14e0/Son-of-Chaos-Demon-Lord-6-by-T-C-Southwell.pdf
    • http://unieoooq.linkpc.net/44e64e84e84e74e3/Grey-God-Demon-Lord-3-by-T-C-Southwell.pdf
    • http://unieoooq.linkpc.net/44e44e64e64e94e1/Dark-God-Demon-Lord-2-by-T-C-Southwell.pdf
    • http://unieoooq.linkpc.net/34e64e34e44e3/Demon-Lord-of-Karanda-The-Malloreon-3-by-David-Eddings.pdf
    • http://unieoooq.linkpc.net/14e34e34e74e64e2/The-Daylight-War-Demon-Cycle-3-by-Peter-V-Brett.pdf
    • http://unieoooq.linkpc.net/14e74e64e24e64e4/The-Painted-Man-Demon-Cycle-1-by-Peter-V-Brett.pdf
    • http://unieoooq.linkpc.net/44e84e54e54e74e3/The-Daylight-War-Demon-Cycle-3-by-Peter-V-Brett.pdf
    • http://unieoooq.linkpc.net/64e64e04e3/The-Core-The-Demon-Cycle-5-by-Peter-V-Brett.pdf
    • http://unieoooq.linkpc.net/14e04e14e84e24e94e7/The-Warded-Man-Demon-Cycle-1-by-Peter-V-Brett.pdf
    • http://unieoooq.linkpc.net/14e84e54e74e24e9/The-Warded-Man-Demon-Cycle-1-by-Peter-V-Brett.pdf
    • http://unieoooq.linkpc.net/14e84e54e74e44e4/The-Desert-Spear-Demon-Cycle-2-by-Peter-V-Brett.pdf
    • http://unieoooq.linkpc.net/84e84e24e04e74e3/The-Tragedies-of-Sophocles-by-James-Morwood.pdf
    • http://unieoooq.linkpc.net/54e64e54e04e54e7/There-s-a-Demon-Lord-on-the-Floor-Vol-3-Floor-ni-Maou-ga-Imasu-3-by-Masaki-Kawakami.pdf
    • http://unieoooq.linkpc.net/14e54e94e64e1/At-Play-in-the-Fields-of-the-Lord-by-Peter-Matthiessen.pdf
    • http://unieoooq.linkpc.net/54e44e04e04e94e2/Have-His-Carcase-Lord-Peter-Wimsey-8-by-Dorothy-L-Sayers.pdf
    • http://unieoooq.linkpc.net/44e04e64e54e2/The-Nine-Tailors-Lord-Peter-Wimsey-11-by-Dorothy-L-Sayers.pdf
    • http://unieoooq.linkpc.net/34e64e34e44e3/Demon-Lord-of-Karanda-The-M

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