Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8bb6179c3d3426a…

MALICIOUS

PDF

19.1 KB Created: 2019-05-03 09:13:01 +01:00 Authoring application: mPDF 5.7
MD5: f46fbe83ac46dd2477951057b2c1e095 SHA-1: 1f2698b7226620ae7f9c38bebb43944b50d6d680 SHA-256: b8bb6179c3d3426afde799e1a3af5898d35342c4b1ef4198f6caa85078b827da
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm, which is a common tactic for SEO poisoning or redirecting users to malicious sites. The ML classifier strongly indicated maliciousness. While the specific intent of the links is not fully clear from the provided data, the sheer volume and nature of the links suggest a deceptive or malicious purpose.

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://loaminoo.linkpc.net/3094091091095093/The-Perfect-Weapon-How-the-Cyber-Arms-Race-Set-the-World-Afire-by-David-E-Sanger.pdf
    • http://loaminoo.linkpc.net/1097091090099096/Perfect-Weapon-by-Amy-J-Fetzer.pdf
    • http://loaminoo.linkpc.net/4090096097098091/All-Their-Minds-in-Tandem-by-David-Sanger.pdf
    • http://loaminoo.linkpc.net/6091097099097092/Arsenals-of-Folly-The-Making-of-the-Nuclear-Arms-Race-by-Richard-Rhodes.pdf
    • http://loaminoo.linkpc.net/2096092099092099/Pink-Ballerina-Our-Cyber-World-2-by-Eduardo-Suastegui.pdf
    • http://loaminoo.linkpc.net/1091094099098098092/Empty-Hands-Open-Arms-The-Race-to-Save-Bonobos-in-the-Congo-and-Make-Conservation-Go-Viral-by-Deni-Ellis-B-chard.pdf
    • http://loaminoo.linkpc.net/8098092093093093/Glass-Houses-Privacy-Secrecy-and-Cyber-Insecurity-in-a-Transparent-World-by-Joel-Brenner.pdf
    • http://loaminoo.linkpc.net/2095090099092091/On-The-Run-In-Search-Of-The-Perfect-Race-by-Marty-Liquori.pdf
    • http://loaminoo.linkpc.net/3096096095093093/In-Just-that-Perfect-Moment-The-Perfect-World-2-by-Samantha-L-Hardison.pdf
    • http://loaminoo.linkpc.net/9097091095097/The-Perfect-Predator-A-Scientist-s-Race-to-Save-Her-Husband-from-a-Deadly-Superbug-A-Memoir-by-Steffanie-Strathdee.pdf
    • http://loaminoo.linkpc.net/1090091094092099/We-Are-Anonymous-Inside-the-Hacker-World-of-LulzSec-Anonymous-and-the-Global-Cyber-Insurgency-by-Parmy-Olson.pdf
    • http://loaminoo.linkpc.net/4095095095095092/Totally-Toned-Arms-Get-Michelle-Obama-Arms-in-21-Days-by-Rylan-Duggan.pdf
    • http://loaminoo.linkpc.net/2090098091096095/Race-by-David-Mamet.pdf
    • http://loaminoo.linkpc.net/8091090094099095/ARMS-Harris-Revenge-ARMS-2-by-Stephen-Arseneault.pdf
    • http://loaminoo.linkpc.net/8091090095095099/ARMS-For-Eternity-ARMS-8-by-Stephen-Arseneault.pdf
    • http://loaminoo.linkpc.net/1090092095095093/Race-and-Reunion-The-Civil-War-in-American-Memory-by-David-W-Blight.pdf
    • http://loaminoo.linkpc.net/2091097090094/Black-Planet-Facing-Race-During-an-NBA-Season-by-David-Shields.pdf
    • http://loaminoo.linkpc.net/6098099090096095/A-Race-Against-Death-Peter-Bergson-America-and-the-Holocaust-by-David-S-Wyman.pdf
    • http://loaminoo.linkpc.net/9097096097091090/Signifying-Rappers-Rap-and-Race-in-the-Urban-Present-by-David-Foster-Wallace.pdf
    • http://loaminoo.linkpc.net/8092099090097091/The-Race-The-First-Nonstop-Round-the-World-No-Holds-Barred-Sailing-Competition-by-Tim-Zimmermann.pdf
    • http://loaminoo.linkpc.net/3096096095093093/In-Just-that-Perfect-Moment-The-Perfect-World-2-by-