Malicious PDF — malware analysis report

Static analysis result for SHA-256 d60ec825baf0fd29…

MALICIOUS

PDF

13.6 KB Created: 2019-05-03 06:08:57 +01:00 Authoring application: mPDF 5.7
MD5: 96c10470a1c95a19d39c84813ddec0d8 SHA-1: 25b612102aa01a91221ba51239d5584bd4fbd68e SHA-256: d60ec825baf0fd29e54b098af28439f9a12dae663ca19dc40ecd701bd464a21c
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. It contains a large number of embedded URLs, identified as a 'PDF_SEO_LINK_FARM' heuristic, which suggests an attempt to manipulate search engine results or distribute malicious content. While the specific intent of the links is unclear due to benign reputation labels, the sheer volume and the ML classification indicate a suspicious pattern. No scripts were extracted from this sample.

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/3207207204203207/Raising-the-Stones-Arbai-2-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/3208205206206205/Raising-the-Stones-Arbai-2-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/1200202208207208/Raising-the-Stones-Arbai-2-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/2206205209208205/Grass-Arbai-1-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/1200205208208207/Singer-from-the-Sea-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/5206203207201/The-Companions-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/1200205208209202/Six-Moon-Dance-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/6208209204209/The-Family-Tree-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/3207207202209207/The-Gate-to-Women-s-Country-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/4202208200203208/Dervish-Daughter-The-End-of-the-Game-2-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/4207204201200200/Gibbon-s-Decline-and-Fall-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/1200207202204201/The-Waters-Rising-Plague-of-Angels-2-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/9200208203207202/Marianne-the-Madame-and-the-Momentary-Gods-Marianne-2-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/1206204206200200/Marianne-the-Magus-and-the-Manticore-Marianne-1-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/1205204208201202/The-Awakeners-Northshore-amp-Southshore-The-Awakeners-1-2-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/2203201201204203/The-Marianne-Trilogy-Marianne-1-3-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/1205205209203209/The-Song-of-Mavin-Manyshaped-The-Chronicles-of-Mavin-Manyshaped-1-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/1206200200208208/A-Plague-of-Angels-Plague-of-Angels-1-by-Sheri-S-Tepper.pdf
    • http://xiixmcuin.linkpc.net/9208202200201/Raising-My-Rainbow-Adventures-in-Raising-a-Fabulous-Gender-Creative-Son-by-Lori-Duron.pdf
    • http://xiixmcuin.linkpc.net/7207202208201208/Raising-Them-Right-A-Saint-s-Advice-on-Raising-Children-by-Theophan-the-Recluse.pdf
    • http://xiixmcuin.linkpc.net/9200208203207202/Marianne-the-Madame-and-the-Mo

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