Malicious PDF — malware analysis report

Static analysis result for SHA-256 845297d6b659088e…

MALICIOUS

PDF

39.9 KB Authoring application: Karbon
MD5: 9d559eea687c5fde520011793afd3267 SHA-1: b9054431f5bfbaff87fc7bfbd28037c0e3f98924 SHA-256: 845297d6b659088e7f9042ac7330d8213d3442321e79f5377931436125d2edfe
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a link farm heuristic, indicating it is designed to redirect users to multiple external URLs. The embedded URLs and the document body, which discusses acupressure points for anxiety, are likely lures to disguise the malicious intent of redirecting users to potentially harmful content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports its classification as a phishing or malicious redirection tool.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://maggieakins.com/uploads/1/3/0/4/130489072/2bb22.pdf
    • https://lupevobodevul.weebly.com/uploads/1/3/0/2/130289173/datobofa.pdf
    • http://premere-evets.com/uploads/1/3/0/3/130313194/9751959.pdf
    • http://ndtasanantonio.org/uploads/1/3/0/8/130814652/130814652.html#best+acupressure+points+for+anxiety

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000f8f.bin
25e15aae05fed16653e9a6973585c769a3bd4003ee8dbbbcf64305c230e4561c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F 8108 bytes

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