Malicious PDF — malware analysis report

Static analysis result for SHA-256 31c0f7a0fac1e843…

MALICIOUS

PDF

17.9 KB Created: 2019-04-30 17:47:44 +01:00 Authoring application: mPDF 5.7
MD5: d1333b37afb27b1d1b1d2b11c8e054c9 SHA-1: 7ff57e25c73b9c1f42660e63bb3acd2cb1bb876f SHA-256: 31c0f7a0fac1e84304d0ad6e1fb51b1a871971d32f791bfcf3a1ad2c6520568e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier strongly supports the malicious verdict. While the document body is unreadable, the heuristic firings and embedded URLs indicate a malicious intent to redirect users to a link farm.

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://loaminoo.linkpc
    • http://loaminoo.linkpc.net/7099096098092090/Shapes-in-Nature-by-Oona-Gaarder-Juntti.pdf
    • http://loaminoo.linkpc.net/7099096096098095/Shapes-on-a-Farm-by-Oona-Gaarder-Juntti.pdf
    • http://loaminoo.linkpc.net/7099096099090092/Going-Green-Set-by-Oona-Gaarder-Juntti.pdf
    • http://loaminoo.linkpc.net/7099096097092098/What-Lives-In-The-Prairie-by-Oona-Gaarder-Juntti.pdf
    • http://loaminoo.linkpc.net/7099096096097097/What-Lives-in-the-Arctic-by-Oona-Gaarder-Juntti.pdf
    • http://loaminoo.linkpc.net/7099096098091092/What-Lives-in-Streams-and-Rivers-by-Oona-Gaarder-Juntti.pdf
    • http://loaminoo.linkpc.net/7099096097092097/What-Lives-in-Coral-Reefs-by-Oona-Gaarder-Juntti.pdf
    • http://loaminoo.linkpc.net/7099096098092093/What-in-the-World-Is-Green-Food-by-Oona-Gaarder-Juntti.pdf
    • http://loaminoo.linkpc.net/7099096098090099/Buster-s-Trip-to-Cape-Cod-A-Story-about-Massachusetts-by-Oona-Gaarder-Juntti.pdf
    • http://loaminoo.linkpc.net/4094090090099095/Oona-Living-in-the-Shadows-A-Biography-of-Oona-O-Neill-Chaplin-by-Jane-Scovell.pdf
    • http://loaminoo.linkpc.net/3097093091094099/Nature-Scout-Emily-A-Comic-Book-of-Nature-Skills-by-Clint-Hollingsworth.pdf
    • http://loaminoo.linkpc.net/4099094098099090/The-Nature-Principle-Human-Restoration-and-the-End-of-Nature-Deficit-Disorder-by-Richard-Louv.pdf
    • http://loaminoo.linkpc.net/2092091090092/Sharing-Nature-r-Nature-Awareness-Activities-for-All-Ages-by-Joseph-Bharat-Cornell.pdf
    • http://loaminoo.linkpc.net/2096097095090098/Your-Brain-On-Nature-The-Science-of-Nature-s-Influence-on-Your-Health-Happiness-and-Vitality-by-Eva-M-Selhub.pdf
    • http://loaminoo.linkpc.net/5090091090/The-Nature-Fix-Why-Nature-Makes-Us-Happier-Healthier-and-More-Creative-by-Florence-Williams.pdf
    • http://loaminoo.linkpc.net/4099094097096092/Talking-with-Nature-and-Journey-into-Nature-by-Michael-J-Roads.pdf
    • http://loaminoo.linkpc.net/2093094094093097/Bound-By-Nature-Forces-of-Nature-1-by-Cooper-Davis.pdf
    • http://loaminoo.linkpc.net/1090090097092097094/Macht-Affen-by-Lotta-Oona-Lente.pdf
    • http://loaminoo.linkpc.net/3099099090099090/Hello-Is-Anybody-There-by-Jostein-Gaarder.pdf
    • http://loaminoo.linkpc.net/1096093093098094/The-White-Wolf-s-Son-The-Albino-Underground-Elric-amp-Oona-Von-Bek-3-by-Michael-Moorcock.pdf

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