Malicious PDF — malware analysis report

Static analysis result for SHA-256 55dd45ea40794b0c…

MALICIOUS

PDF

41.9 KB Authoring application: PDFedit
MD5: 956f7ddf3e87f3ce6bba9e1c304c9a6c SHA-1: b3c76031caab0f4af7c80a1cbb619be76adefaeb SHA-256: 55dd45ea40794b0c1ab3970808539aafac524a76dc1272acfa0f3ef6b4b49ad2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The embedded URLs point to various domains, suggesting a link farm designed to distribute traffic or host malicious content.

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://gex.iclaudia.online/uploads/2020/01/28/fixuwopokoviv.pdf
    • http://mysouthshorecharteracademy.com/uploads/1/3/0/3/130379485/743b30ef.pdf
    • http://webografix.ca/uploads/1/3/0/5/130550817/41e98b055.pdf
    • http://nirvanastorage.net/uploads/1/3/0/5/130552073/vinijetefuja.pdf
    • http://ajdevitt.com/uploads/1/3/0/5/130539370/130539370.html#statistical+process+control+referenc

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010a4.bin
1178aa5fcbeba65357d3db12922e42ce07d07212bbaee9e0d19fddc6cf47b2a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A4 9256 bytes

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