Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d36261e57ac0ae…

MALICIOUS

PDF

13.2 KB Created: 2019-04-30 04:54:31 +01:00 Authoring application: mPDF 5.7 First seen: 2021-06-17
MD5: 60c8224a5b0276e664084afdcb515918 SHA-1: d26c323a0e0df53080bef47eb631b87e43eb52bd SHA-256: c5d36261e57ac0ae5c66f2c935a71be065a8beefca1e17d9725863d56696fcb1
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO spam or to redirect users to malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure itself facilitates the malicious linking behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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/3a05a07a03a01/Lovely-Vicious-Lovely-Vicious-1-by-Sara-Wolf.pdf In PDF document text
    • http://muicuiu.dumb1.com/4a04a06a09a08a08/Lovely-Vicious-Lovely-Vicious-1-by-Sara-Wolf.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a00a08a04/Love-Me-Never-Lovely-Vicious-1-by-Sara-Wolf.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a06a02a00a05a08/Welcome-To-Lovely-The-Lovely-Mystery-Series-1-by-Candace-Clark.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a04a08a03a07a01/Vicious-Pretty-Little-Liars-16-by-Sara-Shepard.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a06a02a04/These-Vicious-Masks-These-Vicious-Masks-1-by-Tarun-Shanker.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a03a03a06a00a00/The-Mothers-of-Lovely-Lane-Lovely-Lane-3-by-Nadine-Dorries.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a07a02a05a09a09/Wicked-Lovely-Wicked-Lovely-1-by-Melissa-Marr.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a03a05a09/Vicious-Villains-1-by-V-E-Schwab.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a05a02a06a03/Vicious-Villains-1-by-V-E-Schwab.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a00a02a07a08a05/Vicious-Cycle-by-Misha-Horne.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a04a01a08a08a04/El-Sid-Saint-Vicious-by-David-Dalton.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a00a09a05a04a09/Vicious-Wolves-and-Men-in-America-by-Jon-T-Coleman.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a07a05a02a03/Vicious-Little-Darlings-by-Katherine-Easer.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a09a00a08a03a02/Sweet-and-Vicious-In-or-Out-3-by-Claudia-Gabel.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a02a05a03a02a06/The-Empty-Ones-Vicious-Circuit-2-by-Robert-Brockway.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a05a07a09a05a09/Vicious-Faces-of-Evil-7-by-Debra-Webb.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a08a04a03a08a04/Top-10-Worst-Vicious-Villains-You-Wouldn-t-Want-to-Know-by-Jim-Pipe.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a03a08a05/The-Unnoticeables-Vicious-Circuit-1-by-Robert-Brockway.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a00a08a00a00a07/Rejected-for-Content-3-Vicious-Vengeance-by-Jim-Goforth.pdfIn PDF document text

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