Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba526cffa77060a…

MALICIOUS

PDF

13.1 KB Created: 2019-05-07 04:18:43 +01:00 Authoring application: mPDF 5.7
MD5: f5b3c3b9776db9a8b5f3678037c2fe73 SHA-1: e8cbe2bfa03c4b03c1fe8b8c68430b6643317891 SHA-256: aba526cffa77060a4ad29994ff280410ed76773d91fe10af984a83eac67ef0ee
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 external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the specific intent of the linked PDFs is unclear, the sheer volume and the heuristic firing suggest a malicious distribution or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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.d
    • http://muicuiu.dumb1.com/5a00a09a04a08/White-Heat-Perfect-Fire-Trilogy-2-by-K-M-Grant.pdf
    • http://muicuiu.dumb1.com/4a04a09a04a03a01/Blue-Flame-Perfect-Fire-Trilogy-1-by-K-M-Grant.pdf
    • http://muicuiu.dumb1.com/2a05a04a02a05a01/Heat-Dark-Kings-12-by-Donna-Grant.pdf
    • http://muicuiu.dumb1.com/3a01a06a03a06a06/The-Blue-Dolphin-Desert-Heat-2-by-Robena-Grant.pdf
    • http://muicuiu.dumb1.com/6a06a06a08a02a05/White-Heat-by-Oasis-.pdf
    • http://muicuiu.dumb1.com/4a07a02a01a08a07/White-Heat-by-Paul-D-Marks.pdf
    • http://muicuiu.dumb1.com/1a01a09a08a08/White-Heat-T-FLAC-11-by-Cherry-Adair.pdf
    • http://muicuiu.dumb1.com/1a07a01a00a07a03/Absorbing-White-The-White-Trilogy-3-by-Charlotte-E-Hart.pdf
    • http://muicuiu.dumb1.com/8a00a09a01a02/Wild-Heat-Hot-Shots-Men-of-Fire-1-by-Bella-Andre.pdf
    • http://muicuiu.dumb1.com/4a01a04a01a03a02/Emerald-Fire-Demon-Heat-2-by-Valerie-Twombly.pdf
    • http://muicuiu.dumb1.com/1a08a09a00a03a01/Coyote-Heat-SEALs-On-Fire-1-by-Desiree-Holt.pdf
    • http://muicuiu.dumb1.com/2a08a04a01a03a06/Wild-Heat-Hot-Shots-Men-of-Fire-1-by-Bella-Andre.pdf
    • http://muicuiu.dumb1.com/5a06a06a01/Raised-in-Fire-Fire-and-Ice-Trilogy-2-by-K-F-Breene.pdf
    • http://muicuiu.dumb1.com/1a01a03a08a01a04a06/Summer-Heat-Damon-amp-Pete-Playing-with-Fire-1-by-Tantalus.pdf
    • http://muicuiu.dumb1.com/3a03a07a02a08a08/Seeing-White-The-White-Trilogy-1-by-Charlotte-E-Hart.pdf
    • http://muicuiu.dumb1.com/3a01a06a02a00a05/White-Heat-Dept-6-Hired-Guns-1-by-Brenda-Novak.pdf
    • http://muicuiu.dumb1.com/2a04a09a08a04a02/The-White-Horse-by-Cynthia-D-Grant.pdf
    • http://muicuiu.dumb1.com/2a09a01a09a07a01/The-White-Horse-by-Cynthia-D-Grant.pdf
    • http://muicuiu.dumb1.com/4a04a06a04a07a00/We-Go-Around-In-The-Night-And-Are-Consumed-By-Fire-by-Jules-Grant.pdf
    • http://muicuiu.dumb1.com/8a04a08a00a02/The-Day-of-St-Anthony-s-Fire-by-John-Grant-Fuller-Jr-.pdf

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