Malicious PDF — malware analysis report

Static analysis result for SHA-256 d09e17edbf20a8fa…

MALICIOUS

PDF

18.0 KB Created: 2019-04-30 05:21:59 +01:00 Authoring application: mPDF 5.7
MD5: 734d629ef1488f13bd17504220d5a8ad SHA-1: c6521f812b89073d0b0840ef1c0d4246bad0a397 SHA-256: d09e17edbf20a8fae95479d5bcfaf2df8fdf2c5288812e08f7b54a6eb1f349e9
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains numerous URLs pointing to the domain 'muicuiu.dumb1.com', suggesting a link farm or redirection scheme. 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/2a09a04a09a07a05/Myth-Nomers-and-Im-Pervections-Myth-Adventures-8-by-Robert-Lynn-Asprin.pdf
    • http://muicuiu.dumb1.com/3a07a07a01a06a09/Myth-Adventures-Myth-Adventures-1-4-by-Robert-Lynn-Asprin.pdf
    • http://muicuiu.dumb1.com/2a07a03a02a07a01/Myth-ion-Improbable-Myth-Adventures-11-by-Robert-Lynn-Asprin.pdf
    • http://muicuiu.dumb1.com/2a09a03a06a03a02/Hit-or-Myth-Myth-Adventures-4-by-Robert-Lynn-Asprin.pdf
    • http://muicuiu.dumb1.com/9a01a01a04a09/M-Y-T-H-Inc-Link-Myth-Adventures-7-by-Robert-Lynn-Asprin.pdf
    • http://muicuiu.dumb1.com/2a09a05a05a01a06/MYTH-Interpretations-The-Worlds-of-Robert-Asprin-by-Robert-Lynn-Asprin.pdf
    • http://muicuiu.dumb1.com/4a02a09a04a08a06/Myth-History-and-Faith-The-Mysteries-of-Christian-Myth-and-Imagination-by-Morton-T-Kelsey.pdf
    • http://muicuiu.dumb1.com/2a01a04a07a08a03/Myth-of-Perfection-Confessions-of-a-Housewife-Myth-Series-by-Kate-Maxwell.pdf
    • http://muicuiu.dumb1.com/4a06a03a04a02a08/Storm-Season-by-Robert-Lynn-Asprin.pdf
    • http://muicuiu.dumb1.com/1a00a09a04a01a06a03/Verrat-in-Freistatt-by-Robert-Lynn-Asprin.pdf
    • http://muicuiu.dumb1.com/9a09a01a05a03a05/Myth-and-the-Human-Sciences-Hans-Blumenberg-s-Theory-of-Myth-Hans-Blumenberg-s-Theory-of-Myth-by-Angus-Nicholls.pdf
    • http://muicuiu.dumb1.com/4a06a03a04a03a00/Shadows-of-Sanctuary-Thieves-World-3-by-Robert-Lynn-Asprin.pdf
    • http://muicuiu.dumb1.com/4a08a02a04a03a07/Shadows-of-Sanctuary-Thieves-World-3-by-Robert-Lynn-Asprin.pdf
    • http://muicuiu.dumb1.com/3a02a01a00a03a02/Theorizing-about-Myth-by-Robert-A-Segal.pdf
    • http://muicuiu.dumb1.com/3a02a00a07a09a03/Myth-A-Very-Short-Introduction-by-Robert-A-Segal.pdf
    • http://muicuiu.dumb1.com/1a00a02a06a09a01/Success-and-Luck-Good-Fortune-and-the-Myth-of-Meritocracy-by-Robert-H-Frank.pdf
    • http://muicuiu.dumb1.com/1a02a09a09a07a07/Fairy-Tale-as-Myth-Myth-as-Fairy-Tale-by-Jack-D-Zipes.pdf
    • http://muicuiu.dumb1.com/1a09a06a05a03a03/The-Adventures-of-Prince-Camar-and-Princess-Badoura-Arabian-Nights-Adventures-1-by-Kelley-Townley.pdf
    • http://muicuiu.dumb1.com/1a00a05a07a08a00a01/The-Adventures-of-Florin-amp-Lorenzo-by-Robert-Earl.pdf
    • http://muicuiu.dumb1.com/8a00a06a05a05/Max-Danger-The-Adventures-of-an-Expat-in-Tokyo-by-Robert-J-Collins.pdf

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