Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc7fd2a526331c91…

MALICIOUS

PDF

13.4 KB Created: 2019-05-03 06:02:24 +01:00 Authoring application: mPDF 5.7 First seen: 2021-11-21
MD5: a41c02ee09cf10e676f90e7dee330db3 SHA-1: 905947d3127ea6e8d798333ecf9c2004069d96f8 SHA-256: bc7fd2a526331c917e377e72223fd71962386ece1eafa82e6f74663ff1a176dc
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to direct users to external resources, potentially for malicious purposes such as phishing or malware distribution. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9102

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/6a02a03a03a09a05/MAREFIS-ou-Le-petit-MAnuel-de-REcettes-FIscales-Tome-II-Tome-II-by-Manuel-Sisyphe.pdf In PDF document text
    • http://muicuiu.dumb1.com/9a06a07a07a03a01/Omnia-by-Laura-Gallego-Garc-a.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a01a02a01a05a03/Cuando-me-veas-by-Laura-Gallego-Garc-a.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a02a00a03a05a08/White-on-Black-by-Rub-n-Gonz-lez-Gallego.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a01a09a06a09a08a03/Erica-Sakurazawa-The-Aromatic-Bitters-by-Erica-Sakurazawa.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a05a01a09a09/What-Do-Women-Want-Essays-by-Erica-Jong-by-Erica-Jong.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a07a09a03a01a03/From-Filth-amp-Mud-by-J-Manuel.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a02a05a06a06/Los-Duros-by-Manuel-Mart-nez.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a06a04a09a02/Rex-by-Jos-Manuel-Prieto.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a01a03a07a08a03a09/Die-Totenfresser-by-Niklaus-Manuel.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a03a09a03a05a08/Kanyakumari-by-Hazel-Manuel.pdfIn PDF document text
    • http://muicuiu.dumb1.com/8a09a06a05a07a06/Caravaggio-by-Manuel-Jover.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a05a00a08a08a09/Los-Mares-Del-Sur-by-Manuel-V-zquez-Montalb-n.pdfIn PDF document text
    • http://muicuiu.dumb1.com/9a06a07a07a02a06/Manuel-Castells-by-Frank-Webster.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a05a08a07a00a01/I-d-Rather-Sink-by-John-Manuel-Arias.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a07a03a03a03a02/Kiss-of-the-Spiderwoman-by-Manuel-Puig.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a06a02a09a00a08/Jacob-s-ladder-by-Manuel-Alfonseca.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a00a02a02a07a02/Jovellanos-by-Manuel-Fern-ndez-lvarez.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a01a06a09a02a00/Killer-Protocols-by-David-E-Manuel.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a00a06a04a04/O-lapis-do-carpinteiro-by-Manuel-Rivas.pdfIn PDF document text