Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf32690044335a15…

MALICIOUS

PDF

19.7 KB Created: 2019-04-30 08:37:49 +01:00 Authoring application: mPDF 5.7
MD5: 75d333b7c56e0e7be4bfb6158c4b3d29 SHA-1: 89baed9f92c3566069c69d15e1f5ca31287a48e2 SHA-256: cf32690044335a15fda88cb53f702dd940649270b96f09c4808965c3fc3374cd
90 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, directing users to numerous other PDF documents. This is a common technique 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 large number of external links within the document body.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/4a04a06a01a03/The-Wind-on-Fire-Trilogy-The-Wind-Singer-Slaves-of-the-Mastery-Firesong-by-William-Nicholson.pdf
    • http://muicuiu.dumb1.com/1a02a05a06a06a08/The-Wind-Singer-Wind-on-Fire-trilogy-1-by-William-Nicholson.pdf
    • http://muicuiu.dumb1.com/4a04a01a09a00/The-Wind-Singer-Wind-on-Fire-1-by-William-Nicholson.pdf
    • http://muicuiu.dumb1.com/1a03a06a09a05/Fire-on-the-Wind-by-Linda-Crew.pdf
    • http://muicuiu.dumb1.com/2a02a01a05a05a07/Against-the-Fire-The-Raines-of-Wind-Canyon-2-by-Kat-Martin.pdf
    • http://muicuiu.dumb1.com/3a00a06a00/Tell-the-Wind-and-Fire-by-Sarah-Rees-Brennan.pdf
    • http://muicuiu.dumb1.com/1a02a09a00a03/Fire-on-the-Wind-by-Barbara-Dawson-Smith.pdf
    • http://muicuiu.dumb1.com/2a00a09a04a03a05/Jango-Noble-Warriors-Trilogy-2-by-William-Nicholson.pdf
    • http://muicuiu.dumb1.com/1a00a01a04a01a03a06/I-Am-Wind-You-Are-Fire-The-Life-and-Work-of-Rumi-by-Annemarie-Schimmel.pdf
    • http://muicuiu.dumb1.com/5a00a01a08a06a09/Wind-Rider-Trails-West-Trilogy-2-by-Connie-Mason.pdf
    • http://muicuiu.dumb1.com/1a08a08a08a01a06/Wind-Chime-Wedding-Wind-Chime-2-by-Sophie-Moss.pdf
    • http://muicuiu.dumb1.com/4a01a05a08a00/The-Boy-Who-Harnessed-the-Wind-Creating-Currents-of-Electricity-and-Hope-by-William-Kamkwamba.pdf
    • http://muicuiu.dumb1.com/9a02a09a01a09/To-Tame-the-Wind-Agents-of-the-Crown-Prequel-and-Donet-Trilogy-1-by-Regan-Walker.pdf
    • http://muicuiu.dumb1.com/3a05a07a08a02/When-the-Wind-Blows-When-the-Wind-Blows-1-by-James-Patterson.pdf
    • http://muicuiu.dumb1.com/1a01a06a08a02a04a07/Gruppi-Musicali-Disco-Earth-Wind-amp-Fire-Bee-Gees-Blondie-Boney-M-Eruption-Baccara-Kool-amp-the-Gang-Kc-and-the-Sunshine-Band-La-Bionda-by-Fonte-Wikipedia.pdf
    • http://muicuiu.dumb1.com/7a08a03a02a07/Let-the-Sky-Fall-Trilogy-Let-the-Sky-Fall-Let-the-Storm-Break-Let-the-Wind-Rise-by-Shannon-Messenger.pdf
    • http://muicuiu.dumb1.com/8a03a00a08a02/Nausica-of-the-Valley-of-the-Wind-Vol-7-Nausica-of-the-Valley-of-the-Wind-7-by-Hayao-Miyazaki.pdf
    • http://muicuiu.dumb1.com/4a08a07a04a09a01/Blood-to-Fire-Red-Slaves-2-by-Tonya-Cannariato.pdf
    • http://muicuiu.dumb1.com/4a02a07a07a00a08/Amherst-by-William-Nicholson.pdf
    • http://muicuiu.dumb1.com/3a02a00a05a06a04/Slaves-of-Obsession-William-Monk-11-by-Anne-Perry.pdf

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