Malicious PDF — malware analysis report

Static analysis result for SHA-256 06f2450e0427db1e…

MALICIOUS

PDF

15.3 KB Created: 2019-05-02 18:23:06 +01:00 Authoring application: mPDF 5.7
MD5: 60f50c5f7ba5faf2a40a45fe45ed6811 SHA-1: 639fc57c2b714b3991a7bc13b20dc1c083372d46 SHA-256: 06f2450e0427db1e3d847ffea3aec0cb5e8902130bdb19178c51f7956ae1f5bf
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a large number of embedded external links, forming a link farm. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing indicate a likely attempt to distribute spam or redirect users to malicious content. The attack pattern is consistent with SEO poisoning or link farming to generate traffic.

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://xiixmcuin.linkpc.net/4202209207204205/The-Collected-Stories-of-Philip-K-Dick-5-Vols-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/3202208204209205/The-Short-Happy-Life-of-the-Brown-Oxford-and-Other-Classic-Stories-The-Collected-Stories-of-Philip-K-Dick-Vol-1-Vol-1-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/1205204209202200/The-Collected-Works-of-Philip-K-Dick-11-Science-Fiction-Stories-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/1203208207205205/The-Collected-Stories-of-Philip-K-Dick-2-We-Can-Remember-it-for-You-Wholesale-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/2204200203204201/Minority-Report-Volume-Four-Of-The-Collected-Stories-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/5206207209201203/Philip-K-Dick-s-Electric-Dreams-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/8203207201208202/The-Variable-Man-and-Other-Stories-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/1201201206206204209/The-Philip-K-Dick-Collection-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/1201204209205202/Eye-in-the-Sky-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/1207205203205201/The-Zap-Gun-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/3202206209206206/The-Eyes-Have-It-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/1201203207200209208/The-Defenders-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/4206208207205207/VALIS-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/1203208205201209/The-Simulacra-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/8207202202206209/Oh-to-Be-A-Blobel-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/3202204206208204/Ubik-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/4203204206202/Time-Out-of-Joint-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/1207205201206201/The-Cosmic-Puppets-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/3203200204204/A-Scanner-Darkly-by-Philip-K-Dick.pdf
    • http://xiixmcuin.linkpc.net/3202206201202205/Piper-in-the-Woods-by-Philip-K-Dick.pdf

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