Malicious PDF — malware analysis report

Static analysis result for SHA-256 f57ec8d444701a1e…

MALICIOUS

PDF

15.2 KB Created: 2019-05-02 17:50:39 +01:00 Authoring application: mPDF 5.7
MD5: 2d3a5433415153620c773b85961d2291 SHA-1: 8396a114b6bee1ba69d4c5debeea2606b0840c15 SHA-256: f57ec8d444701a1e7d099d79f639e884285ca8a0693727512aee3510f92b1880
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external resources, a technique often used for SEO manipulation or to distribute malicious payloads. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the sheer volume of links and the heuristic firing suggest a malicious intent, likely related to driving traffic or delivering further malware. The URLs themselves appear to be book titles, suggesting a potential lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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://loaminoo.linkpc.net/4092096093/The-Fix-Up-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/4097094096097097/The-Fix-Up-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/3093094094/Wednesday-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/4095096091096093/Resisting-Her-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/1094095092092091/Resisting-Her-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/5097092095/Sexy-Stranger-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/1094094095093095/Make-Me-Yours-Unravel-Me-2-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/4095093099095097/Finding-Alexei-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/4091091095097099/When-We-Fall-When-I-Break-3-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/1097091093096093/Working-It-Love-by-Design-1-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/5092095097/The-Play-Mate-Roommates-2-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/2090095098/Monster-Prick-Screwed-1-5-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/1098094099093093/The-Gentleman-Mentor-Lessons-with-the-Dom-1-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/3098098090094095/The-Room-Mate-Roommates-1-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/6092094097/The-Soul-Mate-Roommates-4-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/2094092095095098/Tempting-Little-Tease-Forbidden-Desires-4-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/1091096093098098097/Tempting-Little-Tease-Forbidden-Desires-4-by-Kendall-Ryan.pdf
    • http://loaminoo.linkpc.net/1090098097092098096/Mister-Miller-and-Mister-Meyer-by-Birte-M-ller.pdf
    • http://loaminoo.linkpc.net/3097091095091098/The-Adventures-of-Mister-Bubble-Mister-Bubble-and-the-Greedy-Triplets---The-Colouring-Book-by-Luke-Mathius-Harlow.pdf
    • http://loaminoo.linkpc.net/3097091098095094/The-Adventures-of-Mister-Bubble---Mister-Bubble-and-the-Thoughtless-Children-Colour-It-Yourself-Edition-by-Luke-Mathius-Harlow.pdf
    • http://loaminoo.linkpc.net/3098098090094095/The-Ro

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