Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9a3d88dfa457bb4…

MALICIOUS

PDF

53.0 KB Authoring application: ImageMagick
MD5: 595220b4c361ce37b0d832d5c3552f35 SHA-1: a2822b03f608c7f365ed073787b5836d06585004 SHA-256: d9a3d88dfa457bb48db9ad98f0fa7b5ca5bafa1204c9ae1ba1acbc20e70959e4
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files, a technique commonly used for SEO poisoning or to redirect users to malicious sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. The heuristic 'PDF_SEO_LINK_FARM' explicitly identifies the mass linking behavior and highlights the dominant host 'nichellerenee.solutions'.

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://nichellerenee.solutions/uploads/1/3/0/6/130621059/3017379.pdf
    • http://661junkhauling.com/uploads/1/3/0/5/130547812/gipun-soxubipapikikev.pdf
    • http://vwear.net/uploads/1/3/0/7/130739459/98e0882a710.pdf
    • http://buythebirdseed.com/uploads/1/3/0/6/130620757/5923.pdf
    • http://woodlandstuition.com/uploads/1/3/0/6/130621387/130621387.html#ks3+reading+comprehension+worksheets+free

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001292.bin
83cd502ae707834a1a3b80f842b04f39f9e29e382f062b441d07fcfc33ece22d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1292 8620 bytes

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