Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1e702d4d9d4907e…

MALICIOUS

PDF

18.0 KB Created: 2019-04-30 04:11:12 +01:00 Authoring application: mPDF 5.7
MD5: 7a1a930dfe2720074edf22920a76e51b SHA-1: 51bbb3a9cc19ea487ffa46f0a03f78ad02a5ea3f SHA-256: f1e702d4d9d4907e49c5bddba74ee0b6c3965b016f26fc6850bf0c43f5665779
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of embedded URLs pointing to other PDF documents. This technique is often used for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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/1a01a06a00a02a04a08/The-Christmas-Secret-Marvells-of-Montana-2-Secrets-of-Cherry-Lake-7-by-Jeannie-Watt.pdf
    • http://muicuiu.dumb1.com/2a02a05a01a08a09/The-Christmas-Secret-Marvells-of-Montana-2-Secrets-of-Cherry-Lake-7-by-Jeannie-Watt.pdf
    • http://muicuiu.dumb1.com/2a02a05a02a01a00/A-Marvell-Country-Christmas-Men-of-the-Marvell-Ranch-1-by-Jeannie-Watt.pdf
    • http://muicuiu.dumb1.com/4a09a00a01a09a07/Always-a-Temp-by-Jeannie-Watt.pdf
    • http://muicuiu.dumb1.com/3a09a07a04a07a08/The-Baby-Truce-by-Jeannie-Watt.pdf
    • http://muicuiu.dumb1.com/2a00a00a03a06a03/Cherry-Christmas-Vampire-Cherry-3-5-by-Sotia-Lazu.pdf
    • http://muicuiu.dumb1.com/2a01a01a08a01a03/Wedding-at-the-Graff-Holiday-at-the-Graff-5-by-Jeannie-Watt.pdf
    • http://muicuiu.dumb1.com/2a00a06a07a09a06/A-Sweet-Montana-Christmas-This-Old-House-2-A-Marietta-Christmas-6-by-Roxanne-Snopek.pdf
    • http://muicuiu.dumb1.com/2a02a01a00a04a00/Blood-Secrets-Alexandra-Sabian-2-by-Jeannie-Holmes.pdf
    • http://muicuiu.dumb1.com/8a08a07a08a04/Risky-Christmas-Holiday-Secrets-Kidnapped-at-Christmas-by-Jill-Sorenson.pdf
    • http://muicuiu.dumb1.com/3a08a09a00a04a09/Keeping-Secrets-Hannah-Montana-1-by-Beth-Beechwood.pdf
    • http://muicuiu.dumb1.com/2a09a06a06a09a04/The-Christmas-Wish-Heart-of-Montana-2-by-Katy-Regnery.pdf
    • http://muicuiu.dumb1.com/6a00a07a05a08a00/Hope-for-Christmas-Noel-Montana-1-by-Jennifer-Hayden.pdf
    • http://muicuiu.dumb1.com/3a08a09a01a04a06/The-Perfect-Christmas-Winter-Montana-2-by-Bell-Renshaw.pdf
    • http://muicuiu.dumb1.com/1a05a01a08a07a09/Secret-Angel-by-Cherry-Christensen.pdf
    • http://muicuiu.dumb1.com/3a00a05a09a07a00/On-a-Snowy-Christmas-Night-Made-in-Montana-3-by-Debbi-Rawlins.pdf
    • http://muicuiu.dumb1.com/2a08a05a01a09a00/Soul-Journey-The-Greatest-Secrets-to-Living-the-Life-You-Want-by-Lisa-Cherry.pdf
    • http://muicuiu.dumb1.com/7a07a06a05a05a02/Secret-of-Deadman-s-Coulee-Whitehorse-Montana-1-by-B-J-Daniels.pdf
    • http://muicuiu.dumb1.com/4a06a02a00a05a04/Secrets-of-the-Secret-Service-The-History-and-Uncertain-Future-of-the-U-S-Secret-Service-by-Gary-J-Byrne.pdf
    • http://muicuiu.dumb1.com/1a00a09a01a03a08a07/Die-Neue-Penelope-Ein-Jeannie-Ebner-Lesebuch-by-Jeannie-Ebner.pdf
    • http://muicuiu.dumb1.com/2a00a06a07a09a06/A-Sweet-Montana-

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