Malicious PDF — malware analysis report

Static analysis result for SHA-256 83608c052433127a…

MALICIOUS

PDF

15.9 KB Created: 2019-05-07 03:57:49 +01:00 Authoring application: mPDF 5.7
MD5: 081ca443df4b57ebf90afe5c036949ea SHA-1: 9d3ba79e4ad01c1472864f1b63725e1a24bc0673 SHA-256: 83608c052433127a669b1d62bcc9fa96a12c0ab69fbd1629cf0736c69e5ab6ad
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, disguised as book downloads, which is indicative of a link farm or a lure for malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The presence of embedded URLs and the heuristic firing for PDF_SEO_LINK_FARM suggest the document is designed to redirect users to potentially harmful content, likely as part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/3a01a04a08a08a03/In-the-Shadow-of-the-Gods-Bound-Gods-1-by-Rachel-Dunne.pdf
    • http://muicuiu.dumb1.com/3a06a03a08a04a00/The-Gods-Were-Astronauts-Evidence-of-the-True-Identities-of-the-Old-Gods-by-Erich-von-D-niken.pdf
    • http://muicuiu.dumb1.com/1a01a05a06a01/Witch-Bound-Twilight-of-the-Gods-2-by-Eleri-Stone.pdf
    • http://muicuiu.dumb1.com/3a08a07a01a08a08/Winter-of-the-Gods-Olympus-Bound-2-by-Jordanna-Max-Brodsky.pdf
    • http://muicuiu.dumb1.com/4a08a08a02a08a07/Gods-of-Fire-and-Thunder-Book-of-the-Gods-5-by-Fred-Saberhagen.pdf
    • http://muicuiu.dumb1.com/2a09a00a04a08a06/Gods-of-Fire-and-Thunder-Book-of-the-Gods-5-by-Fred-Saberhagen.pdf
    • http://muicuiu.dumb1.com/3a02a05a01a07a07/Voice-of-Gods-Blood-of-Gods-and-Royals-0-5-by-Eleanor-Herman.pdf
    • http://muicuiu.dumb1.com/8a05a07a02a06/The-Book-of-the-Gods-600-Gods-from-20-Pantheons-Explained-by-Chas-Saunders.pdf
    • http://muicuiu.dumb1.com/4a09a09a03a07a06/Dreams-of-Fire-and-Gods-Gods-by-James-Erich.pdf
    • http://muicuiu.dumb1.com/1a02a04a06a08a04/Shadow-Paper-Gods-0-5-by-Amanda-Sun.pdf
    • http://muicuiu.dumb1.com/1a01a00a03a04/Oh-My-Gods-Oh-My-Gods-1-by-Tera-Lynn-Childs.pdf
    • http://muicuiu.dumb1.com/2a07a04a02a09a07/Incoherent-Gods-Gods-Inc-3-by-Gabriele-Russo.pdf
    • http://muicuiu.dumb1.com/2a07a04a02a09a05/Inclement-Gods-Gods-Inc-2-by-Gabriele-Russo.pdf
    • http://muicuiu.dumb1.com/4a02a09a02a01a00/Oh-My-Gods-Oh-My-Gods-1-by-Tera-Lynn-Childs.pdf
    • http://muicuiu.dumb1.com/1a07a08a06a00a01/Shadow-Bound-Unbound-2-by-Rachel-Vincent.pdf
    • http://muicuiu.dumb1.com/3a07a06a02a02a00/War-of-Gods-War-of-Gods-1-3-by-Lizzy-Ford.pdf
    • http://muicuiu.dumb1.com/4a04a06a09a07a00/Sword-of-the-Gods-Agents-of-Ki-Sword-of-the-Gods-Saga-3-by-Anna-Erishkigal.pdf
    • http://muicuiu.dumb1.com/1a06a05a02a03a03/Gods-of-Manhattan-Gods-of-Manhattan-1-by-Scott-Mebus.pdf
    • http://muicuiu.dumb1.com/8a01a08a05a06a02/American-Gods-American-Gods-1-by-Neil-Gaiman.pdf
    • http://muicuiu.dumb1.com/1a08a00a07a06a06/Gods-of-Manhattan-Gods-of-Manhattan-1-by-Scott-Mebus.pdf

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