Malicious PDF — malware analysis report

Static analysis result for SHA-256 b83b304095c24d64…

MALICIOUS

PDF

21.3 KB Created: 2019-04-30 02:41:31 +01:00 Authoring application: mPDF 5.7
MD5: 2534462f7470f226b75c894333b721f4 SHA-1: 6e6b8ea65b07fbf4dd1f40255e12b29ee9b23e5b SHA-256: b83b304095c24d64d736baf6b42a5eb6630077bf937c1cab704c9f4ffdfdb64e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external documents, primarily hosted on the domain 'muicuiu.dumb1.com'. This behavior is indicative of a link farm or a phishing lure, aiming to direct users to potentially malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9919

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/6a03a00a07a02a04/Yukio-Mishima-quot-Nothing-Above-Honor-quot-Yukio-Misima-Nichego-Vyshe-Chesti-by-Nikolai-Nadezhdin.pdf
    • http://muicuiu.dumb1.com/6a02a09a05a01/The-Sea-of-Fertility-by-Yukio-Mishima.pdf
    • http://muicuiu.dumb1.com/3a09a00a06a09a00/The-Sound-of-Waves-by-Yukio-Mishima.pdf
    • http://muicuiu.dumb1.com/4a09a04a05a09a05/The-Sound-of-Waves-by-Yukio-Mishima.pdf
    • http://muicuiu.dumb1.com/6a07a08a09a04a03/Depois-do-Banquete-by-Yukio-Mishima.pdf
    • http://muicuiu.dumb1.com/2a05a09a01a07a00/Thirst-for-Love-by-Yukio-Mishima.pdf
    • http://muicuiu.dumb1.com/6a03a00a08a00a03/La-foresta-in-fiore-by-Yukio-Mishima.pdf
    • http://muicuiu.dumb1.com/3a09a02a04a03a08/The-Temple-of-the-Golden-Pavilion-by-Yukio-Mishima.pdf
    • http://muicuiu.dumb1.com/3a06a01a07a09/The-Temple-of-the-Golden-Pavilion-by-Yukio-Mishima.pdf
    • http://muicuiu.dumb1.com/4a04a03a01a08a09/Death-in-Midsummer-and-Other-Stories-by-Yukio-Mishima.pdf
    • http://muicuiu.dumb1.com/6a03a00a06a08a04/The-Life-and-Death-of-Yukio-Mishima-by-Henry-Scott-Stokes.pdf
    • http://muicuiu.dumb1.com/6a03a00a08a03a03/Deadly-Dialectics-Sex-Violence-and-Nihilism-in-the-World-of-Yukio-Mishima-by-Roy-Starrs.pdf
    • http://muicuiu.dumb1.com/6a03a00a08a07a01/Escape-from-the-Wasteland-Romanticism-and-Realism-in-the-Fiction-of-Mishima-Yukio-and-Oe-Kenzaburo-by-Susan-J-Napier.pdf
    • http://muicuiu.dumb1.com/8a07a00a07a03/The-Sailor-Who-Fell-from-Grace-with-the-Sea-Temple-of-the-Golden-Pavilion-Confessions-of-a-Mask-by-Yukio-Mishima.pdf
    • http://muicuiu.dumb1.com/4a09a04a02a06a06/Three-Modern-Indian-Plays-by-Badal-Sircar.pdf
    • http://muicuiu.dumb1.com/6a02a08a04a09a01/Simple-Chaos-Selected-Poems-of-Yukio-Tsuji-by-Yukio-Tsuji.pdf
    • http://muicuiu.dumb1.com/6a00a01a08a02a01/---2-Salaryman-Futsumashi-Okumura-Yukio-no-Aishuu-2-Salaryman-Exorcist-The-Sorrows-of-Okumura-Yukio-2-by-Kazue-Kato.pdf
    • http://muicuiu.dumb1.com/9a07a01a02a07a07/Fast-Horse-Plays-Round-One-A-Collection-of-One-Act-Plays-and-Poetry-by-Angeline-Brom.pdf
    • http://muicuiu.dumb1.com/4a08a06a03a09a01/The-Hour-Glass-Vol-2-And-Other-Plays-Being-of-Plays-for-an-Irish-Theatre-by-W-B-Yeats.pdf
    • http://muicuiu.dumb1.com/2a00a00a00a08/Hard-Plays-Stiff-Parts-The-Homoerotic-Plays-of-Robert-Chesley-With-Illustrations-by-Art-Jagonosi-and-an-Introduction-by-Bert-Herrman-by-Robert-Chesley.pdf

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