Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c9f65676997e7e2…

MALICIOUS

PDF

16.0 KB Created: 2019-05-01 18:51:29 +01:00 Authoring application: mPDF 5.7
MD5: df349d692c0355cf7f643503317fe46a SHA-1: 583382cb98abc4e467d78e6ab44ecc203685dd76 SHA-256: 5c9f65676997e7e2ad4ea067368adb78d2b9f8ff6cab8f268dafe8c511003ad6
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to distribute further malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/3207202202/Wicked-Beautiful-Wicked-Games-1-by-J-T-Geissinger.pdf
    • http://xiixmcuin.linkpc.net/2200202205203201/Wicked-Beautiful-Wicked-Games-1-by-J-T-Geissinger.pdf
    • http://xiixmcuin.linkpc.net/3202207200207203/Wicked-Sexy-Wicked-Games-2-by-J-T-Geissinger.pdf
    • http://xiixmcuin.linkpc.net/3203205209203200/His-Wicked-Games-His-Wicked-Games-1-The-Cunningham-Family-1-by-Ember-Casey.pdf
    • http://xiixmcuin.linkpc.net/2200207200202204/His-Wicked-Games-His-Wicked-Games-1-The-Cunningham-Family-1-by-Ember-Casey.pdf
    • http://xiixmcuin.linkpc.net/1208200203206205/Wicked-Games-Wicked-Games-1-by-Sean-Olin.pdf
    • http://xiixmcuin.linkpc.net/3205204202204203/Wicked-Games-Wicked-Bay-4-by-L-A-Cotton.pdf
    • http://xiixmcuin.linkpc.net/1201200205203204202/Wicked-with-Bonus-Material-The-Life-and-Times-of-the-Wicked-Witch-of-the-West-Wicked-Years-1-by-Gregory-Maguire.pdf
    • http://xiixmcuin.linkpc.net/3201204200207200/Wicked-The-Life-and-Times-of-the-Wicked-Witch-of-the-West-Wicked-Years-1-by-Gregory-Maguire.pdf
    • http://xiixmcuin.linkpc.net/7209207202204203/The-Beautiful-and-the-Wicked-Lila-Day-2-by-Liv-Spector.pdf
    • http://xiixmcuin.linkpc.net/3207202203203208/Wicked-Games-Steele-Security-1-by-A-D-Justice.pdf
    • http://xiixmcuin.linkpc.net/2203204203/Wicked-Reunion-Wicked-White-2-by-Michelle-A-Valentine.pdf
    • http://xiixmcuin.linkpc.net/2200206206205208/Wicked-to-Love-Wicked-Lovers-5-5-by-Shayla-Black.pdf
    • http://xiixmcuin.linkpc.net/3209202205204206/Wicked-Revenge-A-Wicked-Angels-MC-1-by-Zoey-Derrick.pdf
    • http://xiixmcuin.linkpc.net/2200201203203202/Wicked-My-Love-Wicked-Little-Secrets-2-by-Susanna-Ives.pdf
    • http://xiixmcuin.linkpc.net/1207201201205206/Wicked-Desires-Wicked-Affairs-1-by-Eliza-Lloyd.pdf
    • http://xiixmcuin.linkpc.net/3207207200204/Wicked-2-Legacy-amp-Spellbound-Wicked-3-4-by-Nancy-Holder.pdf
    • http://xiixmcuin.linkpc.net/2204209202205206/Wicked-Games-Denver-Rebels-1-by-Maureen-Smith.pdf
    • http://xiixmcuin.linkpc.net/8201205205202/The-Wicked-Games-of-a-Gentleman-Boscastle-4-by-Jillian-Hunter.pdf
    • http://xiixmcuin.linkpc.net/3204201206204209/Wicked-Need-The-Wicked-Horse-3-by-Sawyer-Bennett.pdf

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