Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4e2892105d0fc29…

MALICIOUS

PDF

22.0 KB Created: 2019-05-02 02:20:32 +01:00 Authoring application: mPDF 5.7
MD5: 573f2a2a443ccfc2a9ae491eaa2cfc33 SHA-1: f5f94ca2ec572370c5ab3eee23fa87d123abaa40 SHA-256: d4e2892105d0fc29c62558e22c5ec98f6a3d21e24c653f4658f7bcbcbe50ab3d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content hosted on the `unieoooq.linkpc.net` domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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://unieoooq.linkpc.net/54e84e54e74e04e1/Preparing-Fish-amp-Wild-Game-Exceptional-Recipes-for-the-Finest-of-Wild-Game-Feasts-by-Voyageur-Press.pdf
    • http://unieoooq.linkpc.net/24e84e64e64e34e0/Fight-Game-Fight-Game-1-by-Kate-Wild.pdf
    • http://unieoooq.linkpc.net/74e84e24e54e84e0/A-Final-Game-The-Billionaire-s-Bet-4-by-Clarissa-Wild.pdf
    • http://unieoooq.linkpc.net/24e24e04e44e24e3/The-Summer-of-Beer-and-Whiskey-How-Brewers-Barkeeps-Rowdies-Immigrants-and-a-Wild-Pennant-Fight-Made-Baseball-America-s-Game-by-Edward-Achorn.pdf
    • http://unieoooq.linkpc.net/14e04e44e44e04e34e5/3D-Game-Engine-Architecture-Engineering-Real-Time-Applications-with-Wild-Magic-The-Morgan-Kaufmann-Series-in-Interactive-3d-Technology-by-David-H-Eberly.pdf
    • http://unieoooq.linkpc.net/14e04e34e84e44e64e1/AI-Game-Engine-Programming-Game-Development-Series-Charles-River-Media-Game-Development-by-Brian-Schwab.pdf
    • http://unieoooq.linkpc.net/74e04e84e34e84e5/The-Forager-s-Harvest-A-Guide-to-Identifying-Harvesting-and-Preparing-Edible-Wild-Plants-by-Samuel-Thayer.pdf
    • http://unieoooq.linkpc.net/24e14e54e14e84e8/Four-Fish-The-Future-of-the-Last-Wild-Food-by-Paul-Greenberg.pdf
    • http://unieoooq.linkpc.net/64e94e04e04e64e7/Watching-Baseball-updated-amp-revised-Discovering-the-Game-within-the-Game-by-Jerry-Remy.pdf
    • http://unieoooq.linkpc.net/84e64e54e14e64e8/Game-free-sampler-The-Game-Trilogy-Book-1-by-Anders-de-la-Motte.pdf
    • http://unieoooq.linkpc.net/44e24e64e24e74e4/A-Game-of-Inches-The-Stories-Behind-the-Innovations-That-Shaped-Baseball-Volume-2-The-Game-Behind-The-Scenes-by-Peter-Morris.pdf
    • http://unieoooq.linkpc.net/24e54e94e64e24e3/Winner-Takes-All-Rules-of-the-Game-The-Name-of-the-Game-by-Nora-Roberts.pdf
    • http://unieoooq.linkpc.net/34e94e44e74e94e3/The-Game-Series-Complete-Collection-The-Game-1-4-by-Emma-Hart.pdf
    • http://unieoooq.linkpc.net/84e64e54e14e44e0/The-Game-Trilogy-Game-Buzz-and-Bubble-by-Anders-de-la-Motte.pdf
    • http://unieoooq.linkpc.net/44e84e24e24e44e5/Game-Changer-Game-Changers-1-by-Rachel-Reid.pdf
    • http://unieoooq.linkpc.net/34e04e94e74e44e9/A-Man-a-Can-a-Tailgate-Plan-50-Easy-Game-Time-Recipes-That-Are-Sure-to-Please-by-Zachary-Schisgal.pdf
    • http://unieoooq.linkpc.net/44e14e34e04e64e1/Game-for-Tonight-Game-for-It-3-by-Karen-Erickson.pdf
    • http://unieoooq.linkpc.net/84e84e34e64e7/Game-for-Marriage-Game-for-It-1-by-Karen-Erickson.pdf
    • http://unieoooq.linkpc.net/14e44e84e64e24e4/The-Game-Plan-Game-On-3-by-Kristen-Callihan.pdf
    • http://unieoooq.linkpc.net/14e24e94e94e04e2/The-Love-Game-The-Game-1-by-Emma-Hart.pdf
    • http://unieoooq.linkpc.net/14e04e44e44e04e34e5/3D-Game-Engine-Architecture-Engineering-Real-Time-Applications-with-Wild-Magic-The-Morgan-Kaufmann-Series-in-Interactive-3d-Technology-by-Da