Malicious PDF — malware analysis report

Static analysis result for SHA-256 0704fc1b3bcc1882…

MALICIOUS

PDF

42.5 KB Authoring application: pdf-parser
MD5: ff306584080acf9e5c35d9814efd287e SHA-1: d17303c8128b9c3326d44e6a3d94aba31711d27a SHA-256: 0704fc1b3bcc18821f7ffb8be51c83012afd1a7c0e412a473eab0945eab16e26
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to external PDF files hosted on various domains. This technique, identified as a PDF SEO link farm, is often used to manipulate search engine rankings or to distribute malicious payloads. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://smartlocal506.weebly.com/uploads/1/3/0/4/130489572/4690724.pdf
    • http://ajhollowayministries.com/uploads/1/3/0/5/130540010/liserugixovoroxuzisu.pdf
    • http://troop14holliston.com/uploads/1/3/0/6/130605065/fdf18e8b60af749.pdf
    • http://lbdacademy.weebly.com/uploads/1/3/0/6/130621248/wijulebewixunaxunaz.pdf
    • http://escapethegulag.com/uploads/1/3/0/7/130739095/24b4816f.pdf
    • http://artworkrunner.com/uploads/1/3/0/4/130483592/waboriwusewutux-dudut-serizufe-mibutotapogukum.pdf
    • http://baylaurelgroup.com/uploads/1/3/0/6/130604968/7016226.pdf
    • http://chuyitos.com/uploads/1/3/0/7/130739519/52024fe18174538.pdf
    • http://reviteskincare.com/uploads/1/3/0/2/130288416/130288416.html#cisco+ise+trial+version

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f8.bin
8f0c88bbe26b9195c1da922f62d36721fb843d5125246c8d0d6508074a4475ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F8 8828 bytes

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