Malicious PDF — malware analysis report

Static analysis result for SHA-256 f92ef9c8d60324be…

MALICIOUS

PDF

16.9 KB Created: 2019-04-30 01:56:16 +01:00 Authoring application: mPDF 5.7
MD5: dd5e1ee99a4b856a0ae70161b84e51cd SHA-1: 7f6c24518a63cf6cca1d2b70d1fae78eb2832e4e SHA-256: f92ef9c8d60324be6b4fb755855be4201a69a218df7ee6cf2d64ea790fd481fd
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 to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this sample as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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/4a07a01a08a05a07/Phoenixed-Guardian-of-the-Angels-3-by-Anyta-Sunday.pdf
    • http://muicuiu.dumb1.com/2a02a03a05a07a01/-Un-Masked-by-Anyta-Sunday.pdf
    • http://muicuiu.dumb1.com/8a05a01a09a04a09/Petits-mensonges-et-cons-quences-by-Anyta-Sunday.pdf
    • http://muicuiu.dumb1.com/5a00a05a07a00a09/Liam-Davis-amp-The-Raven-by-Anyta-Sunday.pdf
    • http://muicuiu.dumb1.com/2a08a06a00a04a00/500-Kisses-to-Steal-a-Heart-by-Anyta-Sunday.pdf
    • http://muicuiu.dumb1.com/4a06a07a09/Leo-Loves-Aries-Signs-of-Love-1-by-Anyta-Sunday.pdf
    • http://muicuiu.dumb1.com/3a09a04a02a05a07/Shane-and-Trey-Enemies-to-Lovers-1-by-Anyta-Sunday.pdf
    • http://muicuiu.dumb1.com/9a04a06a02a05/Ten-Guardian-Angels-and-a-Tin-Tub-A-Memoir-by-Adalbert-Krei.pdf
    • http://muicuiu.dumb1.com/4a03a01a00a08a04/The-Railway-Angel-Guardian-Angels-1-by-Julie-Day.pdf
    • http://muicuiu.dumb1.com/1a01a09a07a01a02/In-the-Shadow-of-Angels-The-Guardian-Series-1-by-Fanny-Lee-Savage.pdf
    • http://muicuiu.dumb1.com/2a02a00a04a04a06/Escaping-Eternity-Guardian-Angels-1-by-Lainy-Lane.pdf
    • http://muicuiu.dumb1.com/9a09a09a03a00a03/The-Guardian-Angels---Himmlische-Verf-hrung-by-Ally-Trust.pdf
    • http://muicuiu.dumb1.com/8a00a05a01a05a08/Dangerous-Lessons-And-Guardian-Angels-An-Airline-Pilot-s-Story-by-P-J-Spivack.pdf
    • http://muicuiu.dumb1.com/3a06a07a05a01a02/Guardian-Angels-amp-Spirit-Guides-True-Accounts-of-Benevolent-Beings-from-the-Other-Side-by-Brad-Steiger.pdf
    • http://muicuiu.dumb1.com/2a05a07a08a04a09/Guardian-s-Flame-Guardian-City-2-by-Grace-Lynn.pdf
    • http://muicuiu.dumb1.com/4a03a05a08a06a09/The-Fallen-Guardian-The-Guardian-Chronicles-2-by-Steven-R-Burke.pdf
    • http://muicuiu.dumb1.com/1a00a07a09a02a03/The-Guardian-and-the-Dream-Crawler-The-Guardian-1-by-S-L-Lewis.pdf
    • http://muicuiu.dumb1.com/5a08a01a09a02/The-Guardian-The-Guardian-Trilogy-1-by-Carol-A-Robi.pdf
    • http://muicuiu.dumb1.com/3a06a00a01a03a08/The-Guardian-The-Guardian-Interviews-1-by-Michael-Clary.pdf
    • http://muicuiu.dumb1.com/8a08a00a02a04a06/Angels-101-An-Introduction-to-Connecting-Working-and-Healing-with-the-Angels-by-Doreen-Virtue.pdf
    • http://muicuiu.dumb1.com/8a00a05a01a05a08/Dangerous-Lesson

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