Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dbc77f35d33301a…

MALICIOUS

PDF

18.9 KB Created: 2019-05-07 04:25:58 +01:00 Authoring application: mPDF 5.7
MD5: f1e5a983a9a78840b89c448bd684a693 SHA-1: 685ab639a7c227e67dea390f5f80efe252b2112b SHA-256: 3dbc77f35d33301a6d24055dfbde0db0e0b6c276c623c66eeeb787e2b84e2e44
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, identified as a link farm. While the document body is unreadable, the heuristic 'PDF_SEO_LINK_FARM' strongly suggests a malicious intent to manipulate search engine results or redirect users to potentially harmful content. The ML classifier also flagged the document as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/5a02a02a04a03/The-Game-The-Game-is-Life-1-by-Terry-Schott.pdf
    • http://muicuiu.dumb1.com/7a06a00a08a00a04/Fragmented-The-Game-is-Life-8-by-Terry-Schott.pdf
    • http://muicuiu.dumb1.com/1a07a06a02a09a05/No-Game-No-Life-Vol-1-No-Game-No-Life-Light-Novels-1-by-Yuu-Kamiya.pdf
    • http://muicuiu.dumb1.com/3a02a09a06a00a04/WHY-BRAND-RISK-MANAGEMENT-IS-A-GAME-CHANGER-And-how-to-get-ahead-of-the-game-by-Yvette-Dubel.pdf
    • http://muicuiu.dumb1.com/6a09a00a00a06a07/Watching-Baseball-updated-amp-revised-Discovering-the-Game-within-the-Game-by-Jerry-Remy.pdf
    • http://muicuiu.dumb1.com/8a06a05a01a06a08/Game-free-sampler-The-Game-Trilogy-Book-1-by-Anders-de-la-Motte.pdf
    • http://muicuiu.dumb1.com/4a08a00a02a02a06/Game-Changer-Game-Changers-1-by-Rachel-Reid.pdf
    • http://muicuiu.dumb1.com/4a09a04a08a09a01/For-Love-of-Wildness-The-Journal-of-A-U-S-Game-Management-Agent-by-Terry-Grosz.pdf
    • http://muicuiu.dumb1.com/2a02a00a00a04a05/Game-for-Trouble-Game-for-It-2-by-Karen-Erickson.pdf
    • http://muicuiu.dumb1.com/8a08a03a06a07/Game-for-Marriage-Game-for-It-1-by-Karen-Erickson.pdf
    • http://muicuiu.dumb1.com/2a09a05a09a05a04/The-Great-Game-Past-Imperative-Present-Tense-Future-Indefinite-The-Great-Game-1-3-by-Dave-Duncan.pdf
    • http://muicuiu.dumb1.com/3a05a04a09a06a01/The-Name-of-the-Game-The-Game-1-by-Willa-Okati.pdf
    • http://muicuiu.dumb1.com/3a03a03a03a00a05/Game-On-Game-Over-by-Chris-Quinton.pdf
    • http://muicuiu.dumb1.com/1a07a08a05a01a05/Game-On-Game-On-1-by-Kyra-Lennon.pdf
    • http://muicuiu.dumb1.com/1a07a01a06a06a09/Game-On-Game-On-1-by-Olley-White.pdf
    • http://muicuiu.dumb1.com/1a00a03a01a09a00a05/e-Pedia-List-of-Game-of-Thrones-Episodes-Game-of-Thrones-is-an-American-fantasy-drama-television-series-created-by-David-Benioff-and-D-B-Weiss-by-Wikipedia-contributors.pdf
    • http://muicuiu.dumb1.com/4a07a04a07a04a07/Love-of-the-Game---The-Complete-Collection-Love-of-the-Game-1-5-by-Shayne-McClendon.pdf
    • http://muicuiu.dumb1.com/4a07a07a03a06a09/Scout-Blades-VR-1-by-Terry-Schott.pdf
    • http://muicuiu.dumb1.com/2a02a09a03a07a05/Life-Is-a-Game-by-Jim-Copeland.pdf
    • http://muicuiu.dumb1.com/9a09a01a00a08a08/Ego-The-Game-of-Life-by-F-Schirrmacher.pdf

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