Malicious PDF — malware analysis report

Static analysis result for SHA-256 142b907874d22703…

MALICIOUS

PDF

19.8 KB Created: 2019-05-01 17:14:51 +01:00 Authoring application: mPDF 5.7
MD5: 68ac56cbe52baa1015d69853b88cfacf SHA-1: d36d34eda997ca0e9283ba04a8f2ee3e2e9495c0 SHA-256: 142b907874d22703ac22cb4d5383f051f7cb5c2deac6f2ff0fb4a66c608a69c9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various book titles. While the ML classifier flagged the PDF as malicious, the specific intent appears to be SEO manipulation or potentially distributing content via these links. No scripts were extracted, but the presence of numerous external links suggests an attempt to redirect the user, aligning with a spearphishing attachment tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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://zacdsa.linkpc.net/2c50c53c52c57c52/Ruthless-Husband-Convenient-Wife-The-Marriage-Bargain-3-by-Madeleine-Ker.pdf
    • http://zacdsa.linkpc.net/4c52c52c52c50c53/Ruthless-Magnate-Convenient-Wife-Pregnant-Brides-2-by-Lynne-Graham.pdf
    • http://zacdsa.linkpc.net/2c50c52c59c51c53/The-Spaniard-s-Marriage-Bargain-The-Marriage-Bargain-1-by-Abby-Green.pdf
    • http://zacdsa.linkpc.net/3c54c57c54c57c55/His-Convenient-Husband-Innamorati-1-by-J-L-Langley.pdf
    • http://zacdsa.linkpc.net/2c54c54c53c50c52/The-Convenient-Marriage-by-Georgette-Heyer.pdf
    • http://zacdsa.linkpc.net/4c59c53c50c51c53/A-Convenient-Wife-Montana-Mavericks-Historicals-3-by-Carolyn-Davidson.pdf
    • http://zacdsa.linkpc.net/8c53c59c58c54c52/Sissy-Husband---Pornstar-Wife-Slurpy-cuckolding-and-female-domination-at-the-hands-of-my-pornstar-wife-The-Femdom-Trilogy-Book-1-by-Elle-Mesen.pdf
    • http://zacdsa.linkpc.net/2c53c53c59c50c56/The-Marriage-Bargain-by-Angel-Moore.pdf
    • http://zacdsa.linkpc.net/1c51c51c54c50c59c53/My-Wife-The-Hotwife-cuckold-chastity-cheating-wife-housewife-taboo-humiliation-size-queen-stretching-loving-wives-open-marriage-by-Ronnie-Kinski.pdf
    • http://zacdsa.linkpc.net/3c50c53c59c56c56/His-Bid-for-a-Bride-The-Marriage-Bargain-4-by-Carole-Mortimer.pdf
    • http://zacdsa.linkpc.net/2c55c58c58c50c58/The-Marriage-Bargain-Billionaire-Games-1-by-Sandra-Edwards.pdf
    • http://zacdsa.linkpc.net/7c54c53c51c53c59/Another-Man-s-Wife-and-a-Husband-under-the-Bed-by-Fyodor-Dostoyevsky.pdf
    • http://zacdsa.linkpc.net/1c50c54c50c54c51/Between-Husband-amp-Wife-by-Stephen-E-Lamb.pdf
    • http://zacdsa.linkpc.net/9c58c53c53c57/My-Lesbian-Husband-Landscapes-of-a-Marriage-by-Barrie-Jean-Borich.pdf
    • http://zacdsa.linkpc.net/2c55c51c57c56c52/The-Crap-Husband-s-Guide-To-A-Successful-Marriage-by-Lindsay-Wesker.pdf
    • http://zacdsa.linkpc.net/1c55c59c50c51c56/Her-Husband-Ted-Hughes-and-Sylvia-Plath---A-Marriage-by-Diane-Wood-Middlebrook.pdf
    • http://zacdsa.linkpc.net/4c57c56c54c51c53/I-ve-Never-Loved-Him-More-A-Husband-s-Alzheimer-s-A-Wife-s-Devotion-by-Candy-Abbott.pdf
    • http://zacdsa.linkpc.net/7c53c59c52c59c59/Joanna-s-Husband-and-David-s-Wife-by-Elizabeth-Forsythe-Hailey.pdf
    • http://zacdsa.linkpc.net/3c54c51c59c50c55/The-Company-We-Keep-A-Husband-and-Wife-True-Life-Spy-Story-by-Robert-B-Baer.pdf
    • http://zacdsa.linkpc.net/6c57c53c51c59c59/The-Sexually-Confident-Wife-Connecting-with-Your-Husband-Mind-Body-Heart-Spirit-by-Shannon-Ethridge.pdf