Malicious PDF — malware analysis report

Static analysis result for SHA-256 04e6b9d35370bb5b…

MALICIOUS

PDF

14.9 KB Created: 2019-05-05 15:57:16 +01:00 Authoring application: mPDF 5.7
MD5: 279c78857b4355cea9f29e6e900d823d SHA-1: 19a745751b62c2f3d2df3089734c016e1bb59cad SHA-256: 04e6b9d35370bb5b29bdeaf1a219f1019cc7888db91c2802540771ee44a433bc
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a link farm, directing users to external PDF files. This behavior is indicative of a phishing or spam campaign aiming to drive traffic to potentially malicious or unwanted content. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact nature of the linked content beyond it being PDF files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/4092099095097094/The-Collected-Stories-of-Robert-Silverberg-Volume-1-Pluto-in-the-Morning-Light-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/4092099095096095/The-Collected-Stories-Of-Robert-Silverberg-Volume-Five-The-Palace-At-Midnight-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/4092099095096098/The-Collected-Stories-of-Robert-Silverberg-Volume-6-Multiples-1983-87-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/1096093095090097/To-Open-The-Sky-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/6099096092099093/To-Live-Again-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/2097093093096/Chains-of-the-Sea-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/2097094098099/To-Jorslem-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/1096094090092090/The-Man-in-the-Maze-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/1090094097093097095/Es-stirbt-in-mir-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/1092093098094090/Those-Who-Watch-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/6099096092099095/Star-of-Gypsies-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/2097095090091/The-Masks-of-Time-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/2097095090095/Hawksbill-Station-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/2094099096092/The-Secret-Sharer-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/2094095098090/Gilgamesh-in-the-Outback-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/6099096093094090/The-Gate-of-Worlds-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/3092093096094093/The-Time-Hoppers-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/3097097094095090/The-Book-of-Skulls-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/1093090097093092/The-Face-of-the-Waters-by-Robert-Silverberg.pdf
    • http://loaminoo.linkpc.net/2095090097096/Tower-of-Glass-by-Robert-Silverberg.pdf

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