Malicious PDF — malware analysis report

Static analysis result for SHA-256 efe51690b6281f4c…

MALICIOUS

PDF

20.8 KB Created: 2019-05-01 05:14:45 +01:00 Authoring application: mPDF 5.7
MD5: 6d4d1fe058c706e287202d493ff58309 SHA-1: 50f65d34b84be80ccfa48513324ac985ff761fa4 SHA-256: efe51690b6281f4cfb2368380d004efe90530971e13e7eb649a9977a8749490b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a mass external link farm, with 32 links pointing to PDFs hosted on the domain 'muicuiu.dumb1.com'. This is indicative of SEO poisoning or a distribution mechanism for further malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

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/6a07a07a06a06a06/Rubaiyat-of-Omar-Khayyam-English-French-and-German-Translations-Comparatively-Arranged-V1-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/1a00a04a08a01a02/Wine-of-the-Mystic-The-Rubaiyat-of-Omar-Khayyam-A-Spiritual-Interpretation-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/3a00a03a03a04a01/The-Rub-iy-t-of-Omar-Khayy-m-Fitzgerald-s-Translation-with-Notes-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/1a00a02a00a04a08a05/Rubaiyat-of-Omar-Khayyaam-A-New-Metrical-Version-Rendered-Into-English-from-Various-Persian-Source-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/9a05a09a07a08a03/Dialogs-with-Omar-Khayyam-101-best-of-Rubaiyat-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/3a03a07a02a07/Rub-iy-t-of-Omar-Khayy-m-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/7a05a02a00a08a00/The-Rubaiyat-of-Omar-Khayyam-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/3a03a01a07a09a04/Rubaiyat-of-Omar-Khayyam-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/7a02a02a08a03a04/The-Quatrains-of-Omar-Khayyam-Transl-Into-English-Verse-by-E-H-Whinfield-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/8a02a01a09a01a05/The-Rose-Garden-of-Omar-Khayyam-1910-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/6a04a02a08a06a09/The-Quatrains-of-Omar-Kheyyam-of-Nishapour-1898-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/8a01a07a00a02a01/The-Quatrains-of-Omar-Khayyam-1893-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/8a05a05a08a07a08/The-Quatrains-of-Omar-Kheyyam-of-Nishapour-Now-First-Completely-Done-Into-English-Verse-from-the-Persian-in-Accordance-with-the-Original-Forms-with-a-Biographical-and-Critical-Introduction-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/5a05a09a09a06a00/The-Quatrains-of-Omar-Khayyam-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/8a02a04a00a08a06/Rubaiyyat-Al-Khayyam-In-Arabic-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/2a06a05a03a02a04/The-Rubayyat-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/8a09a08a06a02/Strategies-of-Prophet-Muhammad-by-Omar-Khayy-m.pdf
    • http://muicuiu.dumb1.com/1a06a03a04a06a05/All-Pure---Poems-of-Passion---A-Tribute-to-Omar-Khayyam-by-Deepak-Menon.pdf
    • http://muicuiu.dumb1.com/8a04a05a00a01a07/The-Wine-of-Wisdom-The-Life-Poetry-and-Philosophy-of-Omar-Khayyam-by-Mehdi-Aminrazavi.pdf
    • http://muicuiu.dumb1.com/2a02a09a04a07a07/Single-Mom-by-Omar-Tyree.pdf

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