Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bdc83a3e914631a…

MALICIOUS

PDF

18.9 KB Created: 2019-04-30 02:31:18 +01:00 Authoring application: mPDF 5.7 First seen: 2021-10-12
MD5: f4e2d76b367759486540eb6938623d28 SHA-1: e0bb81e1bad0a5bde6be90da3ebc466b1e7ada3e SHA-256: 3bdc83a3e914631a25a6343f3833b429b42aacdae2dff1c89512d4272ff4cc86
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links disguised as book titles, a technique often used to distribute malicious content or lead users to phishing sites. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to exploit users through a deceptive download lure, likely leading to a secondary payload.

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/4a08a05a02a06/Molly-Moon-Stops-the-World-Molly-Moon-2-by-Georgia-Byng.pdf In PDF document text
    • http://muicuiu.dumb1.com/1a03a02a09a09a04/Molly-Moon-Micky-Minus-amp-the-Mind-Machine-Molly-Moon-4-by-Georgia-Byng.pdfIn PDF document text
    • http://muicuiu.dumb1.com/8a06a01a01a05/Molly-Moon-s-Hypnotic-Time-Travel-Adventure-Molly-Moon-3-by-Georgia-Byng.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a09a04a07a09/Molly-Moon-O-Fant-stico-Livro-do-Hipnotismo-by-Georgia-Byng.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a09a07a04/The-Single-Undead-Moms-Club-Half-Moon-Hollow-4-by-Molly-Harper.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a07a01a07a06a07/The-Dangers-of-Dating-a-Rebound-Vampire-Half-Moon-Hollow-3-by-Molly-Harper.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a05a01a08a04/A-Witch-s-Handbook-of-Kisses-and-Curses-Half-Moon-Hollow-2-by-Molly-Harper.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a06a00a07a03a00/The-Dangers-of-Dating-a-Rebound-Vampire-Half-Moon-Hollow-3-by-Molly-Harper.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a02a05a08a00a01/Molly-s-Surprise-A-Christmas-Story-American-Girls-Molly-3-by-Valerie-Tripp.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a05a03a05a07a02/Changes-for-Molly-A-Winter-Story-American-Girls-Molly-6-by-Valerie-Tripp.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a09a08a01a07a02/Unraveling-Molly-Part-Two-in-the-Molly-Luco-Story-by-Sophia-Derobe.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a00a09a03a00a06/Molly-on-the-Range-Recipes-and-Stories-from-An-Unlikely-Life-on-a-Farm-by-Molly-Yeh.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a03a07a03a04a03/Meet-Molly-An-American-Girl-American-Girls-Molly-1-by-Valerie-Tripp.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a05a03a05a08a02/Meet-Molly-An-American-Girl-American-Girls-Molly-1-by-Valerie-Tripp.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a01a01a01a07a08/Under-Cold-Stone-A-Constable-Molly-Smith-Mystery-Constable-Molly-Smith-Novels-by-Vicki-Delany.pdfIn PDF document text
    • http://muicuiu.dumb1.com/9a08a05a04/When-Books-Went-to-War-The-Stories-that-Helped-Us-Win-World-War-II-by-Molly-Guptill-Manning.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a08a09a03a03a03/It-s-Lonely-in-the-Modern-World-The-Essential-Guide-to-Form-Function-and-Ennui-from-the-Creators-of-Unhappy-Hipsters-by-Molly-Jane-Quinn.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a02a08a01a02a00/Mrs-Darley-s-Moon-Mysteries-A-Celebration-Of-Moon-Lore-And-Magic-by-Carole-Carlton.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a08a05a09a07a08/Moon-Shot-The-Inside-Story-of-America-s-Race-to-the-Moon-by-Alan-Shepard.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a08a08a05a03a06/Desert-Moon-The-Wolves-of-Twin-Moon-Ranch-1-by-Anna-Lowe.pdfIn PDF document text

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