Malicious PDF — malware analysis report

Static analysis result for SHA-256 9560185ce87d95a0…

MALICIOUS

PDF

17.2 KB Created: 2019-04-30 04:24:20 +01:00 Authoring application: mPDF 5.7
MD5: 41b4bb46e9c9c4db9ee841eb43a48952 SHA-1: 5eb4d50ef52ee26716026bdb9c77b1deb37d52f7 SHA-256: 9560185ce87d95a059fbb944c439ee0c894e72a03cb8477ece0c9f77f16a5a6a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or SEO poisoning attack. While the ML classifier strongly indicates maliciousness, the specific intent beyond link distribution is unclear due to the lack of executable scripts or user-readable content. The URLs themselves are classified as benign, but their sheer volume and the heuristic firing point to a malicious distribution or manipulation tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/8a08a06a04a06a03/Storm-Rescue-Wild-at-Heart-6-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/8a08a06a06a03a01/Say-Good-Bye-Wild-at-Heart-5-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/8a08a06a06a03a08/Time-to-Fly-Wild-at-Heart-10-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/4a06a06a00a06a00/Trickster-Wild-at-Heart-3-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/8a08a06a09a01a08/Laurie-Halse-Anderson-Books-2017-Checklist-Reading-Order-of-Seeds-of-America-Series-Vet-Volunteers-Series-and-List-of-All-Laurie-Halse-Anderson-Books-by-Platinum-List.pdf
    • http://muicuiu.dumb1.com/8a08a06a04a06a02/Laurie-Halse-Anderson-Bundle-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/4a01a08a02a03a09/Catalyst-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/2a00a08a05a04a02/Wintergirls-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/8a08a06a06a06a09/Turkey-Pox-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/1a01a08a08a06a07a04/Wintergirls-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/4a04a04a00a03/Catalyst-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/8a08a06a08a01a05/Burger-Wars-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/8a08a06a06a07a00/No-Time-for-Mother-s-Day-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/4a01a07a05a03a09/The-Hair-of-Zoe-Fleefenbacher-Goes-to-School-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/8a08a06a04a06a01/Laurie-Halse-Anderson-Speaking-in-Tongues-by-Wendy-J-Glenn.pdf
    • http://muicuiu.dumb1.com/8a08a06a08a02a05/Summary-of-Speak-by-Laurie-Halse-Anderson-Conversation-Starters-by-BookHabits.pdf
    • http://muicuiu.dumb1.com/8a08a06a08a02a06/Speak-A-Novel-By-Laurie-Halse-Anderson-Conversation-Starters-by-Daily-Books.pdf
    • http://muicuiu.dumb1.com/5a08a05a00a05/The-Seeds-of-America-Trilogy-Chains-Forge-Ashes-by-Laurie-Halse-Anderson.pdf
    • http://muicuiu.dumb1.com/8a08a06a09a01a07/A-Study-Guide-for-Laurie-Halse-Anderson-s-quot-Fever-1793-quot-Novels-for-Students-by-Cengage-Learning-Gale.pdf
    • http://muicuiu.dumb1.com/1a05a09a02a05a03/Laurie-Anderson-All-the-Things-I-Lost-in-the-Flood-by-Laurie-Anderson.pdf
    • http://muicuiu.dumb1.com/4

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