Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fe076bf92f4b23a…

MALICIOUS

PDF

13.7 KB Created: 2019-04-30 02:03:48 +01:00 Authoring application: mPDF 5.7
MD5: e5d49e1a0762d92a5d9ea3dbdca52766 SHA-1: 6d34f8b64fdebaf9ced8f12bbe76364469847f50 SHA-256: 6fe076bf92f4b23a8cb1b17618ddd53f560cad42a23a12d0b02f2529afc17f2f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, many of which are numeric slugs, indicating a potential link farm or SEO manipulation tactic. While the ML classifier flagged this as malicious, the specific intent beyond link distribution is unclear due to the lack of executable scripts. The presence of embedded URLs suggests an attempt to redirect users to potentially malicious or deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9102

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/3205205205203208/In-Every-Port-by-Karin-Kallmaker.pdf
    • http://xiixmcuin.linkpc.net/3207207204209209/Car-Pool-by-Karin-Kallmaker.pdf
    • http://xiixmcuin.linkpc.net/3207207206208206/Maybe-Next-Time-by-Karin-Kallmaker.pdf
    • http://xiixmcuin.linkpc.net/3205202201200203/Roller-Coaster-by-Karin-Kallmaker.pdf
    • http://xiixmcuin.linkpc.net/3205205200204207/Love-by-the-Numbers-by-Karin-Kallmaker.pdf
    • http://xiixmcuin.linkpc.net/3205205200204204/Substitute-for-Love-by-Karin-Kallmaker.pdf
    • http://xiixmcuin.linkpc.net/3205201204202205/Wild-Things-by-Karin-Kallmaker.pdf
    • http://xiixmcuin.linkpc.net/7201200202209203/Temptation-at-Work-An-Erotic-Short-Story-Temptation-in-Spring-Grove-Book-1-by-Taiden-Dashner-Gabaldon.pdf
    • http://xiixmcuin.linkpc.net/3200207204208207/Twelve-Days-of-Temptation-Temptation-1-by-Ruth-Cardello.pdf
    • http://xiixmcuin.linkpc.net/1207204209206201/Within-Temptation-Sons-of-Temptation-1-by-Tanya-Holmes.pdf
    • http://xiixmcuin.linkpc.net/1201208207209205201/Karin-Bucha-6---Liebesroman-Klaus-Heimburg-k-mpft-um-Jutta-by-Karin-Bucha.pdf
    • http://xiixmcuin.linkpc.net/9209209203205208/Karin-Bucha-57---Liebesroman-Kleine-Hoheit-tr-umt-von-der-Liebe-by-Karin-Bucha.pdf
    • http://xiixmcuin.linkpc.net/1201203207201202209/Karin-Bucha-21---Liebesroman-Kannst-du-mir-verzeihen-by-Karin-Bucha.pdf
    • http://xiixmcuin.linkpc.net/3207201206200208/Led-Into-Temptation-by-J-E-Keep.pdf
    • http://xiixmcuin.linkpc.net/1204205201205204/Temptation-to-Sin-by-Ju-Ephraime.pdf
    • http://xiixmcuin.linkpc.net/1200203207203207201/Temptation-com-by-S-B-Redd.pdf
    • http://xiixmcuin.linkpc.net/2206201201205201/Temptation-by-Kim-Dare.pdf
    • http://xiixmcuin.linkpc.net/1208202206205202/Take-Temptation-2-by-Ella-Frank.pdf
    • http://xiixmcuin.linkpc.net/4200205206209206/Into-Temptation-by-Penny-Vincenzi.pdf
    • http://xiixmcuin.linkpc.net/4203209204202203/Temptation-by-V-clav-Havel.pdf

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