Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd6c74ee24c2c1db…

MALICIOUS

PDF

41.4 KB Authoring application: ImageMagick
MD5: d8b74289fcf83913150c2b74e892f21f SHA-1: d724bb000fa8fd202ffd483733e9a75aa0a59d08 SHA-256: fd6c74ee24c2c1db151f5f429602f60b2a5b10b613523866c3ae662210319444
150 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and triggered a critical heuristic for a PDF link farm. The document body contains numerous embedded URLs, with 'subordominant.com' being the most prominent. These URLs likely lead to phishing pages or further malware downloads, aligning with a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://subordominant.com/uploads/1/3/0/6/130604025/5631144.pdf
    • http://blythetierneydever.com/uploads/1/3/0/6/130604558/mimakifuper-sijuxa-ketoged-wanelupep.pdf
    • https://jixitewilogovuv.weebly.com/uploads/1/3/0/4/130435955/2021626.pdf
    • http://sittingtreefarm.com/uploads/1/3/0/5/130551141/2986452.pdf
    • http://artsphynx.com/uploads/1/3/0/5/130589389/130589389.html#acer+nitro+5+amd+ryzen+specs

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001077.bin
fe21075c923267756a669888fc5a06a6b4314bfea1851fa1021b2cfdbab80d4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1077 9028 bytes

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