Malicious PDF — malware analysis report

Static analysis result for SHA-256 5859ab8071c47d3a…

MALICIOUS

PDF

31.1 KB Created: 2019-04-30 03:31:53 +01:00 Authoring application: mPDF 5.7
MD5: 729ca10d02e6933c01e6e46bb4fd7123 SHA-1: f04d42e01e04486d6a141155f278ad5b35f757b8 SHA-256: 5859ab8071c47d3a2863d6a52993419a5010ad3a51374ca151a13a6506a67268
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. While many of these URLs were confirmed benign, the sheer volume and the nature of the heuristic suggest a malicious intent, possibly for SEO manipulation or to redirect users to malicious content. No scripts were extracted from this sample, and the document body was heavily obfuscated, making it difficult to determine the exact payload or user-facing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9684

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/1a00a02a05a06a02a06/Into-the-Woods-A-Different-Scandinavian-Crime-Novel-Detective-Lena-Franke-Series-Book-3-by-Erik-Boman.pdf
    • http://muicuiu.dumb1.com/4a07a09a02a05a08/Articles-on-Crime-Novel-Series-Including-87th-Precinct-Albert-Campion-the-No-1-Ladies-Detective-Agency-Jemima-Shore-Nestor-Burma-China-Bayles-Badge-of-Honor-Novel-Series-Les-Habits-Noirs-Inspector-Jamshaid-Series-Tin-Goyenda-by-Hephaestus-Books.pdf
    • http://muicuiu.dumb1.com/1a01a07a09a00a08a04/Plight-of-the-Plover-Sunny-Barstow-Detective-Series-Book-3-by-Cheryl-Goewey.pdf
    • http://muicuiu.dumb1.com/3a05a08a00a05a05/Crime-Fiction-Murder-Hope-and-Justice-Noir-Mystery-Suspense-Amateur-Sleuths-Police-Procedurals-Private-Investigator-Violence-in-Society-Investigation-Detective-Family-Relationships-Book-1-by-Vicki-R-Pond.pdf
    • http://muicuiu.dumb1.com/7a08a06a00a02a00/The-Secrets-of-Shepard-s-Woods-Shepard-s-Series-Book-1-by-Mimi-Streets.pdf
    • http://muicuiu.dumb1.com/1a01a03a00a03a09a02/The-Great-Scandinavian-Baking-Book-by-Beatrice-Ojakangas.pdf
    • http://muicuiu.dumb1.com/1a06a06a00a06/Bloody-Murder-From-the-Detective-Story-to-the-Crime-Novel-by-Julian-Symons.pdf
    • http://muicuiu.dumb1.com/4a00a05a05a08a07/The-Savior-Project---The-Chosen-One-Book-1-by-Fritz-Franke.pdf
    • http://muicuiu.dumb1.com/7a01a00a02a09a09/James-Dashner-Series-Reading-Order-amp-Checklist-Series-List-in-Order---Maze-Runner-Series-13th-Reality-Series-Morality-Doctrine-Series-Jimmy-Fincher-Series-Listabook-Series-Order-Book-22-by-Listabook.pdf
    • http://muicuiu.dumb1.com/8a03a09a06a06a01/Brat-A-Pornstar-Detective-Short-Pornstar-Detective-Shorts-Book-1-by-John-Steel.pdf
    • http://muicuiu.dumb1.com/4a02a01a04a08/The-Signature-Series-A-Journey-That-Will-Last-for-Generations-to-Come-by-Erik-G-Ossimina.pdf
    • http://muicuiu.dumb1.com/1a08a03a03a09/The-Little-Big-Book-of-Pregnancy-by-Lena-Tabori.pdf
    • http://muicuiu.dumb1.com/1a00a02a05a05a01a00/The-WWI-Journals-of-A-G-Franke-by-Don-Franke.pdf
    • http://muicuiu.dumb1.com/4a00a07a04a03a03/The-Dead-Detective-Dead-Detective-Series-1-by-J-R-Rain.pdf
    • http://muicuiu.dumb1.com/3a01a00a00a09a01/An-Appetite-for-Crime---The-Memoirs-of-Former-Detective-Superintendent-Ron-Chapman-by-Ron-Chapman.pdf
    • http://muicuiu.dumb1.com/2a03a03a08a09a09/Only-the-Heart-Knows-The-Brides-Book-4-by-Lena-Goldfinch.pdf
    • http://muicuiu.dumb1.com/2a08a09a05a00a06/The-Memory-of-Elephants-by-Boman-Desai.pdf
    • http://muicuiu.dumb1.com/1a00a04a09a04a08a02/Holly-Black-Series-Reading-Order-amp-Checklist-Series-List-in-Order---Spiderwick-Chronicles-Magisterium-Series-Curse-Workers-Series-Beyond-Spiderwick-Series-Listabook-Series-Order-Book-21-by-Listabook.pdf
    • http://muicuiu.dumb1.com/1a00a02a05a05a01a02/Ivana-Franke-Retreat-Into-Darkness-by-Ivana-Franke.pdf
    • http://muicuiu.dumb1.com/7a05a05a03a08a03/James-Lee-Burke-Series-Reading-Order-amp-Checklist-Series-List-in-Order---Dave-Robicheaux-Series-Hackberry-Holland-Series-amp-All-Other-Books-Listabook-Series-Order-Book-29-by-Listabook.pdf
    • http://muicuiu.dumb1.com/3a05a08a00a05a05/Crime-Fiction-Murder-Hope-and-Justice-Noir-Mystery-Suspense-Amateur-Sleuths-Police-Procedurals-Private-Investigator-V

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