Malicious PDF — malware analysis report

Static analysis result for SHA-256 5127ac8197f4b02e…

MALICIOUS

PDF

17.2 KB Created: 2019-05-02 01:32:30 +01:00 Authoring application: mPDF 5.7 First seen: 2021-10-23
MD5: 642e4146dcae4ce38331c485bb00b9e1 SHA-1: a3bc957502557428931d57f3b0533ef8ea3b9324 SHA-256: 5127ac8197f4b02e97a82cda4b3ffdc7fa420026d50b63705f87c3518e089ca5
108 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 manipulation or to distribute further malicious content. While the ML classifier strongly indicated maliciousness, the specific intent beyond link farming is unclear as no scripts were extracted. The presence of urgency language and a download button lure, combined with the link farm, suggests a potential phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/1a01a00a04a08a01/The-Calling-Endgame-1-by-James-Frey.pdf In PDF document text
    • http://muicuiu.dumb1.com/4a06a06a09/Rules-of-the-Game-Endgame-3-by-James-Frey.pdfIn PDF document text
    • http://muicuiu.dumb1.com/9a01a00a00a03a06/Existence-Endgame-The-Training-Diaries-3-by-James-Frey.pdfIn PDF document text
    • http://muicuiu.dumb1.com/9a00a09a09a03a06/Endgame-The-Complete-Training-Diaries-Endgame-The-Training-Diaries-1-3-by-James-Frey.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a05a00a04a00/My-Friend-Leonard-by-James-Frey.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a00a06a08a02a00/Endgame-Virtuoso-Anatoly-Karpov---The-Exceptional-Endgame-Skills-of-the-12th-World-Champion-by-Tibor-Karolyi.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a03a04a00a02a08/Das-letzte-Testament-der-heiligen-Schrift-by-James-Frey.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a09a02a03a01a05/London-Calling-by-James-Craig.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a09a05a05a08a02/Calling-All-Villains-Otherworld-1-by-James-Cox.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a08a01a02a00/The-Adventures-of-Jack-Varty-Smith-Book-One---The-Calling-The-Calling-by-R-S-Marlow.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a07a04a06a06a02/How-to-Write-a-Damn-Good-Novel-A-Step-by-Step-No-Nonsense-Guide-to-Dramatic-Storytelling-by-James-N-Frey.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a00a06a00a07/True-Calling-true-calling-1-by-Siobhan-Davis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a09a05a01a08/Triptych-by-J-M-Frey.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a03a07a06a04a01/Velocity2-by-Lee-Frey.pdfIn PDF document text
    • http://muicuiu.dumb1.com/9a06a08a07a00a02/Endgame-for-Eta-by-Teresa-Whitfield.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a04a06a01a07a00/Endgame-Last-Chance-1-by-Dee-Davis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a09a04a04a01/Endgame-by-Frank-Brady.pdfIn PDF document text
    • http://muicuiu.dumb1.com/9a02a07a04a00a01/Endgame-by-Andy-Secombe.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a03a01a02a06a07/Little-Complications-by-Lili-Frey.pdfIn PDF document text
    • http://muicuiu.dumb1.com/9a01a00a00a00a00/The-Legacy-by-Stephen-W-Frey.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.