Malicious PDF — malware analysis report

Static analysis result for SHA-256 794c5db1c3dafacc…

MALICIOUS

PDF

17.0 KB Created: 2019-05-02 03:26:10 +01:00 Authoring application: mPDF 5.7
MD5: c3d5fcc93ddc7a0b48acd537d95d12c1 SHA-1: 4f8f1269b4b87309e92376fe7134f73b194e66a0 SHA-256: 794c5db1c3dafacc498ddb978ea5ac1c45534263d2708360c2b995809de03ece
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged by a machine learning classifier as malicious. It contains a large number of embedded links, identified as a PDF SEO link farm, pointing to various PDF documents hosted on loaminoo.linkpc.net. While the specific intent of these links is not fully detailed, the sheer volume and the nature of the heuristic suggest a malicious distribution or SEO manipulation scheme. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/4094094097099092/Courageous-Cain-by-D-J-Davis.pdf
    • http://loaminoo.linkpc.net/1091093092096098/The-Mark-of-Cain-The-Cain-Chronicles-1-by-A-D-Seeley.pdf
    • http://loaminoo.linkpc.net/5098090097093/The-Cain-Casey-Series-Volume-1-Cain-Casey-1-3-by-Ali-Vali.pdf
    • http://loaminoo.linkpc.net/3094095092090094/Courageous-by-Randy-Alcorn.pdf
    • http://loaminoo.linkpc.net/4098090099090091/A-Once-Courageous-Heart-by-Kylie-Johnson.pdf
    • http://loaminoo.linkpc.net/3098090091098/Captains-Courageous-by-Rudyard-Kipling.pdf
    • http://loaminoo.linkpc.net/3096095096094092/Captains-Courageous-by-Rudyard-Kipling.pdf
    • http://loaminoo.linkpc.net/7090094091090090/Captains-Courageous-by-Rudyard-Kipling.pdf
    • http://loaminoo.linkpc.net/2098096097097092/Captains-Courageous-by-Rudyard-Kipling.pdf
    • http://loaminoo.linkpc.net/4093095099091096/Courageous-Afterlife-4-by-Willow-Rose.pdf
    • http://loaminoo.linkpc.net/2093093099092099/The-Courageous-Brides-Collection-by-Johnnie-Alexander.pdf
    • http://loaminoo.linkpc.net/3098099091095091/This-Courageous-Journey-Heart-of-the-Mountains-4-by-Misty-M-Beller.pdf
    • http://loaminoo.linkpc.net/1091099090092094092/Selected-readings-for-management-208-408-for-the-University-of-CA-Davis-by-Scott-Davis.pdf
    • http://loaminoo.linkpc.net/1091098090095096092/Out-of-the-Cocoon-A-Young-Woman-s-Courageous-Flight-from-the-Grip-of-a-Religious-Cult-by-Brenda-Lee.pdf
    • http://loaminoo.linkpc.net/7096093090091097/Courageous-Conversations-about-Race-A-Field-Guide-for-Achieving-Equity-in-Schools-by-Glenn-E-Singleton.pdf
    • http://loaminoo.linkpc.net/9092098097/100-Extraordinary-Stories-for-Courageous-Girls-Unforgettable-Tales-of-Women-of-Faith-by-Jean-Fischer.pdf
    • http://loaminoo.linkpc.net/7093094093091098/Rabbi-Haim-David-Halevy-Gentle-Scholar-and-Courageous-Thinker-by-Marc-D-Angel.pdf
    • http://loaminoo.linkpc.net/4090093098093092/The-Lost-Ways-Amazon-Ultimate-Survival-Food-by-Claude-Davis-Scam-by-Claude-Davis.pdf
    • http://loaminoo.linkpc.net/3095094091099093/The-Lost-Ways-2-by-Claude-Davis-Best-Survival-Guide-Book-by-Claude-Davis.pdf
    • http://loaminoo.linkpc.net/5090099094096099/The-Papers-of-Jefferson-Davis-Volume-11-September-1864-May-1865-by-Jefferson-Davis.pdf

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