Malicious PDF — malware analysis report

Static analysis result for SHA-256 585266fd98cedd0f…

MALICIOUS

PDF

14.5 KB Created: 2019-04-30 03:53:01 +01:00 Authoring application: mPDF 5.7
MD5: e51defabdd8d1e0219f8530e0bd0b4a7 SHA-1: d71bff2810cfbc9241024882f3978c69d223eb80 SHA-256: 585266fd98cedd0fe489215a8cc6139e995d008f5c82987994b41c515a8468b4
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. These links all point to the same domain, loaminoo.linkpc.net, and appear to be designed to mimic book titles. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document with high confidence. No scripts were extracted from this sample. The primary attack pattern involves tricking users into clicking these links, which are likely used for SEO spam or to redirect to malicious websites.

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/5097092098/Wanted-By-The-Devil-Devil-s-Riders-1-by-Joanna-Blake.pdf
    • http://loaminoo.linkpc.net/4095096091097093/Wanted-By-The-Devil-Devil-s-Riders-1-by-Joanna-Blake.pdf
    • http://loaminoo.linkpc.net/4095096091090098/Still-Waters-Devil-s-Riders-2-by-Joanna-Blake.pdf
    • http://loaminoo.linkpc.net/4096096095092/His-Captive-Lady-Devil-Riders-2-by-Anne-Gracie.pdf
    • http://loaminoo.linkpc.net/1091095099092/Bride-by-Mistake-Devil-Riders-5-by-Anne-Gracie.pdf
    • http://loaminoo.linkpc.net/6097099092092/Devil-s-Game-Reapers-MC-3-by-Joanna-Wylde.pdf
    • http://loaminoo.linkpc.net/3090094092090094/A-Devil-Named-Desire-The-Devil-s-Bargain-2-by-Terri-Garey.pdf
    • http://loaminoo.linkpc.net/1092095091091093/The-Devil-s-Concubine-The-Devil-of-Ponong-series-1-by-Jill-Braden.pdf
    • http://loaminoo.linkpc.net/2099091095098095/The-Devil-s-Match-The-Devil-DeVere-4-by-Victoria-Vane.pdf
    • http://loaminoo.linkpc.net/5091094092095090/The-Fallen-Devil-The-Great-Devil-War-6-by-Kenneth-B-Andersen.pdf
    • http://loaminoo.linkpc.net/1091092093098091092/Scarlett-The-Devil-s-Daughter-The-Devil-s-Children-2-by-S-J-Crabb.pdf
    • http://loaminoo.linkpc.net/4095093096099096/The-Devil-s-Horizon-Devil-s-Fire-3-by-Matt-Tomerlin.pdf
    • http://loaminoo.linkpc.net/4095093095096094/The-Devil-s-Tide-Devil-s-Fire-2-by-Matt-Tomerlin.pdf
    • http://loaminoo.linkpc.net/3094093099099099/The-Devil-s-Match-The-Devil-DeVere-4-by-Victoria-Vane.pdf
    • http://loaminoo.linkpc.net/3093091091097094/Devil-s-Pact-The-Devil-s-Playground-1-by-Samantha-Cruise.pdf
    • http://loaminoo.linkpc.net/1097096091091097/The-Devil-s-Revenge-The-Devil-s-Eyes-2-by-Jennifer-Loren.pdf
    • http://loaminoo.linkpc.net/3095095099098098/Devil-s-in-the-Details-Devil-s-Book-1-by-Sydney-Gibson.pdf
    • http://loaminoo.linkpc.net/4099097097093093/Before-the-Devil-Knows-You-re-Dead-Speak-of-the-Devil-3-by-Patricia-Eimer.pdf
    • http://loaminoo.linkpc.net/2091097098099090/Luck-of-the-Devil-Speak-of-the-Devil-1-by-Patricia-Eimer.pdf
    • http://loaminoo.linkpc.net/1097096094099097/The-Devil-s-Horizon-Devil-s-Fire-3-by-Matt-Tomerlin.pdf