Malicious PDF — malware analysis report

Static analysis result for SHA-256 a86f6f9f729463df…

MALICIOUS

PDF

16.8 KB Created: 2019-04-30 01:51:53 +01:00 Authoring application: mPDF 5.7
MD5: 33bc393fbe8e4a8651783852ef24c38f SHA-1: 32202719848ac966b6d69d70bb9ef6adac026bf3 SHA-256: a86f6f9f729463dfe022204fdb457dcfba88dec373b2da9fc3fd003b273e5d6f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to other PDF documents, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the specific intent of the linked PDFs is unclear, the sheer volume and the heuristic firing suggest a coordinated effort to direct users to external resources, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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://muicuiu.dumb1.com/4a09a03a04a02a02/The-Accidental-Mail-Order-Bride-Chance-at-Love-3-by-Ruth-Ann-Nordin.pdf
    • http://muicuiu.dumb1.com/2a00a08a02a02a04/The-Soldier-s-E-Mail-Order-Bride-The-Heroes-of-Chance-Creek-2-by-Cora-Seton.pdf
    • http://muicuiu.dumb1.com/2a07a04a04a03a01/The-Soldier-s-E-Mail-Order-Bride-The-Heroes-of-Chance-Creek-2-by-Cora-Seton.pdf
    • http://muicuiu.dumb1.com/2a07a04a09a09a05/Last-Chance-Mail-Order-Bride-Violet-s-Cowboy-Westward-Wanted-Book-4-by-Crystal-Anne-Tilden.pdf
    • http://muicuiu.dumb1.com/2a07a04a01a00a04/Violet-Bride-of-North-Dakota-American-Mail-Order-Bride-39-by-Heather-Horrocks.pdf
    • http://muicuiu.dumb1.com/3a03a07a03a03a06/Mail-Order-Bride-by-Mark-Kalesniko.pdf
    • http://muicuiu.dumb1.com/4a07a02a08a04a03/Robby-Riverton-Mail-Order-Bride-by-Eli-Easton.pdf
    • http://muicuiu.dumb1.com/1a07a08a01a02a04/Robby-Riverton-Mail-Order-Bride-by-Eli-Easton.pdf
    • http://muicuiu.dumb1.com/1a01a01a08a01a09a04/Stina-and-the-Decision-Mail-Order-Bride-3-by-D-D-Boone.pdf
    • http://muicuiu.dumb1.com/2a04a05a09a02a03/Wyoming-Bride-Mail-Order-Brides-2-by-Joan-Johnston.pdf
    • http://muicuiu.dumb1.com/9a01a02a03a01/Lassoing-the-Virgin-Mail-Order-Bride-by-Alexa-Riley.pdf
    • http://muicuiu.dumb1.com/9a07a09a03a00a01/Alice-in-Winterland-Seasons-Mail-Order-Bride-3-by-Annie-Lane.pdf
    • http://muicuiu.dumb1.com/9a02a07a08a06a08/The-Mismatched-Bride-Big-Bertha-s-Mail-Order-Brides-1-by-Faith-Johnson.pdf
    • http://muicuiu.dumb1.com/6a04a00a01a03a01/RNWMP-Bride-for-Theodore-Mail-Order-Mounties-0-5-by-Kirsten-Osbourne.pdf
    • http://muicuiu.dumb1.com/4a04a06a08a09a07/Buying-a-Bride-An-Engaging-History-of-Mail-Order-Matches-by-Marcia-A-Zug.pdf
    • http://muicuiu.dumb1.com/1a00a08a04/The-Vampire-s-Mail-Order-Bride-Nocturne-Falls-1-by-Kristen-Painter.pdf
    • http://muicuiu.dumb1.com/2a07a08a01a07a01/RNWMP-Bride-for-Nolan-Mail-Order-Mounties-3-by-Cassie-Hayes.pdf
    • http://muicuiu.dumb1.com/2a04a06a00a04a00/A-Mail-Order-Bride-for-Charlie-The-Carson-Brothers-of-Kansas-1-by-Carr-White.pdf
    • http://muicuiu.dumb1.com/4a09a09a08a01a07/A-Christmas-Proposal-A-Wyoming-Mail-Order-Bride-Holiday-2-by-Annie-Boone.pdf
    • http://muicuiu.dumb1.com/3a05a00a05a00a05/Mail-Order-Bride-Silver-Springs-Settlers-3-by-Gina-Marie-Coon.pdf
    • http://muicuiu.dumb1.com/1a07a08a01a02a04/Ro