Malicious PDF — malware analysis report

Static analysis result for SHA-256 35bfefd306f9a52b…

MALICIOUS

PDF

30.8 KB Authoring application: Pdftk
MD5: 509b826541e904cd27d1e9db92093770 SHA-1: 5d1253f03b5bcd0f54e07f5cd5860365f2c47067 SHA-256: 35bfefd306f9a52b19e0af07ff9cfa38e750f8a8bd5eb72b6fa4e637e3deb2d0
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 indicates a phishing or redirection attempt. The embedded URLs are the primary indicators of compromise, suggesting a campaign to drive traffic to potentially 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://nashvillebluetones.com/uploads/1/3/0/2/130271094/zomawojo.pdf
    • http://missionreality.weebly.com/uploads/1/3/0/4/130436315/6213158.pdf
    • http://outingsmanager.com/uploads/1/3/0/6/130604332/9311713.pdf
    • http://cocktailsnponytails.com/uploads/1/3/0/5/130588692/kutopufosefi.pdf
    • https://modivine.weebly.com/uploads/1/3/0/5/130546290/b5cfb8fd7da395.pdf
    • http://tovarik2.fun/uploads/2020/01/29/8380411.pdf
    • http://thesingbabysingshow.com/uploads/1/3/0/8/130814439/130814439.html#bundesagentur+f%C3%BCr+arbeit+m%C3%BCnchen+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010d0.bin
eefea7460ea99a3f0a25dae160b5384a0ca710172f47c6225073b7d1dc8b891d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D0 8528 bytes

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