Malicious PDF — malware analysis report

Static analysis result for SHA-256 010826b1dc37dbe1…

MALICIOUS

PDF

19.3 KB Created: 2019-05-01 05:14:16 +01:00 Authoring application: mPDF 5.7
MD5: 09666ce4d3b62b156ce2dc78499e6a28 SHA-1: 0719f510bb9118065bd9a61e2645b64cef67a5b1 SHA-256: 010826b1dc37dbe141da561183d5aaa1a2b1f9ec3d9c7c6aa6ff7a234f7de493
100 Risk Score

Malware Insights

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

This PDF file exhibits a critical heuristic firing for a link farm, containing 32 external PDF links. The ML classifier also strongly flagged it as malicious. The embedded URLs, while marked as confirmed benign in this specific extraction, are part of a pattern designed to direct users to external resources. The presence of a 'download button' heuristic further suggests a deceptive user interaction workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/2a09a09a09a02a05/Stay-His-Command-3-by-Piper-Scott.pdf
    • http://muicuiu.dumb1.com/2a09a09a07a06a00/Breathe-His-Command-5-by-Piper-Scott.pdf
    • http://muicuiu.dumb1.com/2a09a09a07a09a07/Obey-His-Command-1-by-Piper-Scott.pdf
    • http://muicuiu.dumb1.com/4a04a06a03a05a07/Sloppy-Seconds-by-Piper-Scott.pdf
    • http://muicuiu.dumb1.com/2a04a04a09a03a05/Resisting-Command-Command-2-by-Jennifer-Leeland.pdf
    • http://muicuiu.dumb1.com/6a00a08a07a08/If-I-Stay-If-I-Stay-1-by-Gayle-Forman.pdf
    • http://muicuiu.dumb1.com/3a03a03a03a06a04/If-I-Stay-If-I-Stay-1-by-Gayle-Forman.pdf
    • http://muicuiu.dumb1.com/2a00a09a05a05a04/If-I-Stay-If-I-Stay-1-by-Gayle-Forman.pdf
    • http://muicuiu.dumb1.com/1a00a08a04a01/If-I-Stay-If-I-Stay-1-by-Gayle-Forman.pdf
    • http://muicuiu.dumb1.com/2a07a03a02a04a02/Footprints-in-the-Sand-A-Piper-Donovan-Mystery-Piper-Donovan-Wedding-Cake-Mysteries-Book-3-by-Mary-Jane-Clark.pdf
    • http://muicuiu.dumb1.com/3a07a05a02a04a04/Stay-At-Home-Dead-Stay-At-Home-Dad-Mysteries-1-by-Jeffrey-Allen.pdf
    • http://muicuiu.dumb1.com/4a03a04a09a09a02/Stay-At-Home-Dead-Stay-At-Home-Dad-Mystery-1-by-Jeffrey-Allen.pdf
    • http://muicuiu.dumb1.com/2a00a08a02a07a08/Piper-LeVine-A-Gypsy-s-Truth-Piper-LeVine-1-by-Eris-Kelli.pdf
    • http://muicuiu.dumb1.com/6a04a00a06a04a01/Sanctification-in-the-Everyday-Three-Sermons-by-John-Piper-by-John-Piper.pdf
    • http://muicuiu.dumb1.com/3a06a03a09a09a06/Stay-Stay-1-by-S-Mulholland.pdf
    • http://muicuiu.dumb1.com/7a05a04a00a08a06/Daily-Paintings-The-Art-of-Piper-Thibodeau-by-Piper-Thibodeau.pdf
    • http://muicuiu.dumb1.com/1a01a08a09a09a00a08/Flappers-and-Philosophers-1920-by-Francis-Scott-Fitzgerald-Francis-Scott-Key-Fitzgerald-September-24-1896---December-21-1940-Known-Professionally-as-F-Scott-Fitzgerald-Was-an-American-Novelist-and-Short-Story-Writer-Whose-Works-Illustrate-by-F-Scott-Fitzgerald.pdf
    • http://muicuiu.dumb1.com/2a00a01a08a04a07/In-His-Command-Don-t-Tell-1-by-Rie-Warren.pdf
    • http://muicuiu.dumb1.com/9a08a05a04a02a05/Ivanhoe-by-Sir-Walter-Scott-Illustrated-Delphi-Parts-Edition-Sir-Walter-Scott-by-Walter-Scott.pdf
    • http://muicuiu.dumb1.com/1a01a03a08a02a02a07/The-Last-Command-by-Mike-Baron.pdf