Malicious PDF — malware analysis report

Static analysis result for SHA-256 970e7921380bbf89…

MALICIOUS

PDF

46.1 KB Authoring application: OpenOffice Draw
MD5: 6f7de70efe8f95bbbef22816878071ab SHA-1: 33d6c968488a6ca14b0e71202ca5bc45671d5b07 SHA-256: 970e7921380bbf89021102cd435ee66c932c2053feaa779469567ec0d65b44d1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was detected as malicious by ClamAV with the signature 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. Static analysis revealed a significant number of embedded external links, indicating a link farm designed to redirect users to potentially harmful content. The document body contains garbled text, suggesting it is not intended for direct user consumption but rather as a container for these links.

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://gardacidadania.com/uploads/1/3/0/8/130813669/varavo_golugipebisemo_dimepila_sonabor.pdf
    • http://verniceartmagazine.com/uploads/1/3/0/6/130604910/fikimivivo.pdf
    • http://tepa.luciemauger.com/uploads/2020/01/28/tarixenurivopevumada.pdf
    • http://sima-se-design.com/uploads/1/3/0/2/130289461/26ce7eca6edf.pdf
    • http://barsportpobla.com/uploads/1/3/0/6/130604772/79b2f8e8925.pdf
    • http://turnred.com/uploads/1/3/0/6/130621374/1fd25621b4a013.pdf
    • http://shardexplorers.com/uploads/1/3/0/5/130588513/130588513.html#hypnotic+writing+adalah

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001125.bin
ac898873bf2a3ffc4072dcef8ec4e4291a1ccdbadd7edccd21299a72a4b82f00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1125 8556 bytes
font_01_sfnt_off00007a8e.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8E 1708 bytes

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