Malicious PDF — malware analysis report

Static analysis result for SHA-256 a60ad6bc00822fa7…

MALICIOUS

PDF

14.9 KB Created: 2019-04-30 03:52:57 +01:00 Authoring application: mPDF 5.7
MD5: dc2f9e6ef32d64c035467d47e12059ba SHA-1: 7724de87a0b2d6c582abcae959fbe8fc805f98dc SHA-256: a60ad6bc00822fa7226bd7c69c1dc86dcdb2dd5dc46cabeca2ecef277610f621
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, identified as a link farm, which is a common technique for SEO spam or distributing malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links and the heuristic firing suggest a high likelihood of malicious intent, possibly to redirect users to phishing sites or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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/5a02a09a01a07a09/Not-That-You-Asked-Rants-Exploits-and-Obsessions-by-Steve-Almond.pdf
    • http://muicuiu.dumb1.com/3a07a00a04a05a07/Which-Brings-Me-to-You-by-Steve-Almond.pdf
    • http://muicuiu.dumb1.com/9a07a05a06a06/Candyfreak-A-Journey-Through-the-Chocolate-Underbelly-of-America-by-Steve-Almond.pdf
    • http://muicuiu.dumb1.com/5a00a04a06a02a06/She-Asked-for-It-She-Asked-for-It-1-by-Willow-Winters.pdf
    • http://muicuiu.dumb1.com/4a03a03a04a09a07/But-Then-Again-I-Could-Be-Wrong-The-Book-of-Rants-by-Jim-Rising.pdf
    • http://muicuiu.dumb1.com/6a01a01a01a01/Six-Packs-Rants-And-Midnight-Chants-by-Thornfellow.pdf
    • http://muicuiu.dumb1.com/4a06a00a04a09a02/Rants-in-the-Dark-From-One-Tired-Mama-to-Another-by-Emily-Writes.pdf
    • http://muicuiu.dumb1.com/3a04a00a03a03a02/Obsessions-by-P-L-Nunn.pdf
    • http://muicuiu.dumb1.com/1a00a07a03a03a03/One-Butt-Cheek-at-a-Time-Gert-Garibaldi-s-Rants-and-Raves-1-by-Amber-Kizer.pdf
    • http://muicuiu.dumb1.com/4a07a08a01a02a09/Post-Obsessions-by-Julia-Talbot.pdf
    • http://muicuiu.dumb1.com/9a01a01a04a04/Crackpot-The-Obsessions-of-by-John-Waters.pdf
    • http://muicuiu.dumb1.com/1a08a06a01a00a05/Darkest-Obsessions-by-Sheree-Smith.pdf
    • http://muicuiu.dumb1.com/3a01a07a05a07a08/Unforeseen-Obsessions-by-Valerie-J-Clarizio.pdf
    • http://muicuiu.dumb1.com/8a07a05a03a05/Kit-s-Wilderness-by-David-Almond.pdf
    • http://muicuiu.dumb1.com/4a07a04a09a06a03/Skellig-by-David-Almond.pdf
    • http://muicuiu.dumb1.com/3a02a00a06a05/The-Savage-by-David-Almond.pdf
    • http://muicuiu.dumb1.com/8a04a04a02a07a07/Skellig-by-David-Almond.pdf
    • http://muicuiu.dumb1.com/3a04a07a03a05a07/Dangerous-Obsessions-Men-of-Danger-1-by-Blake-Deveraux.pdf
    • http://muicuiu.dumb1.com/1a08a08a07a09a02/Shifted-Obsessions-Alpha-Division-3-by-C-E-Black.pdf
    • http://muicuiu.dumb1.com/1a07a04a05a01a06/Obsessions-Alpha-City-1-by-Bryce-Evans.pdf
    • http://muicuiu.dumb1.com/9a01a0

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