Malicious PDF — malware analysis report

Static analysis result for SHA-256 edeb57a2d029fec9…

MALICIOUS

PDF

50.7 KB Authoring application: Pdftk
MD5: 13272c6ea3ffc1a350e27d4f54ca3943 SHA-1: 73245a577fa3beb4e18bf4d69938e92b3e9032a3 SHA-256: edeb57a2d029fec9d7b4e96d8a8969385bef13b19c71d64f6bb3a53a2862d0ba
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a significant number of embedded external links, a technique often used for phishing or to redirect users to malicious sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the 'PDF_SEO_LINK_FARM' heuristic strongly indicate a malicious intent focused on link manipulation. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://premiereathleticrecruiting.net/uploads/1/3/0/5/130550770/vapumotudi_wutitinogedaw_jevatajofuf.pdf
    • http://carbuzzznproductions.com.au/uploads/1/3/0/6/130620321/mekunowebebanigajuwu.pdf
    • https://tuvixuvebemupul.weebly.com/uploads/1/3/0/4/130436415/jufugisiko.pdf
    • http://beltwayig.com/uploads/1/3/0/5/130589227/c37b29824bebf02.pdf
    • http://multistreams.com/uploads/1/3/0/4/130494172/130494172.html#signs+of+aspergers+in+2+year+old+quiz

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000127e.bin
6cf3faebfe2fba14f9f5c0a5de9eea0239e716892147578fea4250980423fb86
pdf-font-stream PDF embedded font (sfnt) at offset 0x127E 8876 bytes
font_01_sfnt_off00007629.bin
cc9ce743be02cd19f523c677124e7694a8c1063a96725d69d1e10a7d41130bad
pdf-font-stream PDF embedded font (sfnt) at offset 0x7629 2064 bytes
font_02_sfnt_off00007f89.bin
b7dc3591eb8bc6b2486ac3749428dc018e4a9bc2f028a2adb772425070ba35fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F89 16256 bytes