Malicious PDF — malware analysis report

Static analysis result for SHA-256 370722e5afa2ae23…

MALICIOUS

PDF

14.3 KB Created: 2019-04-30 03:40:35 +01:00 Authoring application: mPDF 5.7
MD5: e6fd35d5c7af58012095be807c171bcc SHA-1: 3b5841183b9a84650e89b1eeff31fe0fba31e3ed SHA-256: 370722e5afa2ae23311e3a52b04822e3b16f98f7526f974719064ead592781d4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, hosted on a dynamic DNS domain. This pattern is indicative of SEO poisoning or a link farm designed to drive traffic. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was heavily corrupted, limiting further analysis of the specific lure.

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/1091091097097099098/Fast-Women-and-Neon-Lights-Eighties-Inspired-Neon-Noir-by-Michael-Pool.pdf
    • http://loaminoo.linkpc.net/4099092094092097/Neon-Mirage-by-Max-Allan-Collins.pdf
    • http://loaminoo.linkpc.net/1091091097097091092/Broken-Neon-by-Tyler-Robbins.pdf
    • http://loaminoo.linkpc.net/9098095090094/The-Neon-Wilderness-by-Nelson-Algren.pdf
    • http://loaminoo.linkpc.net/2090097094095091/Beneath-the-Neon-Moon-by-Theda-Black.pdf
    • http://loaminoo.linkpc.net/6097094090094/Neon-Genesis-Evangelion-Vol-3-by-Yoshiyuki-Sadamoto.pdf
    • http://loaminoo.linkpc.net/1090092098099094091/Neon-Genesis-Evangelion-Vol-12-by-Yoshiyuki-Sadamoto.pdf
    • http://loaminoo.linkpc.net/1091091097098094097/Neon-Blackwood-Security-5-5-by-Elise-Noble.pdf
    • http://loaminoo.linkpc.net/4096099098094090/Neon-and-Tinsel-Sin-City-2-5-by-Jennifer-Samson.pdf
    • http://loaminoo.linkpc.net/1091091097097098097/Magical-Neon-Sexuality-by-Kevin-Fanning.pdf
    • http://loaminoo.linkpc.net/1090092098098095093/Neon-Genesis-Evangelion-Vol-9-by-Yoshiyuki-Sadamoto.pdf
    • http://loaminoo.linkpc.net/4094093093092097/Neon-Genesis-Evangelion-Vol-05-by-Yoshiyuki-Sadamoto.pdf
    • http://loaminoo.linkpc.net/1091091097097099094/Neon-Chaos-End-of-Days-2-by-Karen-Erickson.pdf
    • http://loaminoo.linkpc.net/3094099093096096/Leaving-Amarillo-Neon-Dreams-1-by-Caisey-Quinn.pdf
    • http://loaminoo.linkpc.net/1091099094095093093/Neon-Genesis-Evangelion-3-in-1-Edition-Vol-3-by-Yoshiyuki-Sadamoto.pdf
    • http://loaminoo.linkpc.net/1090099097092095095/Flickering-Light-A-History-of-Neon-by-Christoph-Ribbat.pdf
    • http://loaminoo.linkpc.net/4097091097091093/Loving-Dallas-Neon-Dreams-2-by-Caisey-Quinn.pdf
    • http://loaminoo.linkpc.net/7098098097096/The-Neon-Rain-Dave-Robicheaux-1-by-James-Lee-Burke.pdf
    • http://loaminoo.linkpc.net/1091091097097090099/Neon-Dragon-Knight-and-Devlin-1-by-John-F-Dobbyn.pdf
    • http://loaminoo.linkpc.net/1091091097097091098/Destroyer-of-Planets-Neon-Octopus-Overlord-1-by-L-A-Johnson.pdf