Malicious PDF — malware analysis report

Static analysis result for SHA-256 d669af1861668661…

MALICIOUS

PDF

44.1 KB Authoring application: Solid Converter PDF
MD5: 8f9476e1d57e92edd3dd71aa1ab287a0 SHA-1: 1fddf3a414db684283784e58dbe35ff4952b93da SHA-256: d669af1861668661188f036bedfbabc05cdf36d8d8b6235deaa00a5875cc872f
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. This is a common technique for SEO poisoning or distributing malicious content. The ClamAV detection further confirms its malicious nature, specifically flagging it as Pdf.Phishing.TtraffRobotInstall. The embedded URLs are the primary indicators of compromise, likely serving as download locations for further malicious payloads.

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://retiredmind.net/uploads/1/3/0/4/130490421/sajupazizorimen.pdf
    • http://planteriget.com/uploads/1/3/0/7/130775195/webexerakugatuvox.pdf
    • http://mrramsay.co.uk/uploads/1/3/0/4/130476511/sazulot_xemevunaka_nawem_tenonepibu.pdf
    • http://themedicalscienceeditor.org/uploads/1/3/0/7/130776612/130776612.html#zobrazit+heslo+wifi+android

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000126a.bin
ac987a150fc2d7f409e0f7a25d8e201f8d69ec4aa79dd09b25aa6ce4d44acbeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126A 11352 bytes

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