Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2e6d5787827f817…

MALICIOUS

PDF

29.3 KB Authoring application: pdf-parser
MD5: d86dc5224e7c4dadfff9e5e1d87deaa4 SHA-1: 2cc518401f9f246502988040a8fa9e1735be030c SHA-256: c2e6d5787827f8173a60bd63c29b8f3ce579cdd26e55c97d23dfa202dc863c95
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. ClamAV identified this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or traffic redirection purpose. The embedded URLs likely lead to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://tylerbgeorge.com/uploads/1/3/0/7/130738943/kifux.pdf
    • http://recstats.net/uploads/1/3/0/6/130604934/205c796aebc6ea.pdf
    • http://laf.audiostart32.icu/uploads/2020/01/28/9988661.pdf
    • http://absoluteventoparty.com/uploads/1/3/0/7/130740118/mikerazi.pdf
    • http://foreverhereforyou.com/uploads/1/3/0/2/130272886/524e50bd39f7.pdf
    • http://kreativekidsworld.com/uploads/1/3/0/2/130272500/130272500.html#kmart+single+bed+sheet+sets

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fd1.bin
c622934ec58f28cb4e3c11f5193a9ced2a9f994980abc77cdd1ebad48e8baa3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD1 7104 bytes

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