Malicious PDF — malware analysis report

Static analysis result for SHA-256 f62d0d7eff0b3c3c…

MALICIOUS

PDF

21.6 KB Created: 2019-04-30 02:44:46 +01:00 Authoring application: mPDF 5.7
MD5: 61ff12ad4f481c3c47ebeda0a0cbe1b6 SHA-1: 7ce2713e557bd087aea78ecd19793ea848fa5a2d SHA-256: f62d0d7eff0b3c3cf5155dfedc72a639c7ddaf6a6da42dfb461a736634ebb42f
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which suggests a link farm or redirection tactic. The ML classifier also flagged the document as malicious with high confidence. The primary attack pattern involves luring the user to click on these links, likely leading to further malicious content or downloads. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://muicuiu.dumb1.com/1a00a08a04a01a03a01/The-Siege-of-Leningrad-900-Days-of-Terror-by-David-M-Glantz.pdf
    • http://muicuiu.dumb1.com/4a00a01a06a00a03/The-900-Days-The-Siege-of-Leningrad-by-Harrison-E-Salisbury.pdf
    • http://muicuiu.dumb1.com/1a00a08a04a01a02a04/The-Battle-of-Kursk-by-David-M-Glantz.pdf
    • http://muicuiu.dumb1.com/1a00a08a04a01a03a06/Endgame-at-Stalingrad-Book-One-November-1942-by-David-M-Glantz.pdf
    • http://muicuiu.dumb1.com/1a00a08a04a01a02a06/Barbarossa-Hitler-s-Invasion-of-Russia-1941-by-David-M-Glantz.pdf
    • http://muicuiu.dumb1.com/1a02a07a01a02a02/Dying-Days-Siege-1-And-2-Set-by-Armand-Rosamilia.pdf
    • http://muicuiu.dumb1.com/1a00a05a06a07a08a09/13-Days-to-Glory-The-Siege-of-the-Alamo-by-Lon-Tinkle.pdf
    • http://muicuiu.dumb1.com/1a01a06a07a06a09a06/The-Siege-of-Washington-The-Untold-Story-of-the-Twelve-Days-That-Shook-the-Union-by-John-Lockwood.pdf
    • http://muicuiu.dumb1.com/1a09a02a00a04a03/Days-of-Terror-by-Barbara-Smucker.pdf
    • http://muicuiu.dumb1.com/1a00a08a04a01a03a04/Armageddon-in-Stalingrad-The-Stalingrad-Trilogy-v-2-September---November-1942-by-David-M-Glantz.pdf
    • http://muicuiu.dumb1.com/1a07a03a05a04/Zebra-The-True-Account-of-the-179-Days-of-Terror-in-San-Francisco-by-Clark-Howard.pdf
    • http://muicuiu.dumb1.com/2a05a06a07a06a01/Twelve-Days-of-Terror-A-Definitive-Investigation-of-the-1916-New-Jersey-Shark-Attacks-by-Richard-G-Fernicola.pdf
    • http://muicuiu.dumb1.com/3a00a09a04a08a05/Siege-of-Praetar-Tales-of-a-Dying-Star-1-by-David-Kristoph.pdf
    • http://muicuiu.dumb1.com/1a00a01a08a04a05a06/Terror-Tantchen-by-David-Walliams.pdf
    • http://muicuiu.dumb1.com/1a03a03a02a09a02/Get-Your-War-On-The-Definitive-Account-of-the-War-on-Terror-2001-2008-by-David-Rees.pdf
    • http://muicuiu.dumb1.com/4a09a03a07a08a08/Pirates-Terror-on-the-High-Seas-from-the-Caribbean-to-the-South-China-Sea-by-David-Cordingly.pdf
    • http://muicuiu.dumb1.com/1a02a01a04a03a04/The-Siege-Master-s-Song-The-Siege-Master-series-2-by-Tom-Vetter.pdf
    • http://muicuiu.dumb1.com/5a08a01a09a03a09/Groupe-de-Grindcore-Napalm-Death-Doom-Anal-Cunt-Mesrine-Carcass-Dying-Fetus-Gronibard-Ultra-Vomit-Extreme-Noise-Terror-Last-Days-of-Humanity-Agoraphobic-Nosebleed-Filthy-Charity-the-Locust-the-Red-Chord-by-Source-Wikipedia.pdf
    • http://muicuiu.dumb1.com/8a09a05a07a09a06/Leningrad-by-Martin-H-rlimann.pdf
    • http://muicuiu.dumb1.com/1a00a08a04a01a03a02/How-America-Lost-Iraq-by-Aaron-Glantz.pdf
    • http://muicuiu.dumb1.com/1a01a06a07a06a09a06/The-Siege-of-Washington-The-Untold-Story-of-the-Twelve-Days-That-Shook-t