Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f2e5afb4a39ed9d…

MALICIOUS

PDF

33.4 KB Authoring application: Scribus
MD5: 7e202e5bbff93f77431074396467a7fb SHA-1: e9cf4212dd57d612999d59e50e302862ad1ee180 SHA-256: 4f2e5afb4a39ed9df5a9858e454dd296d72db875d09a7f783893f0ad847bc280
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF files hosted on various domains. This behavior is indicative of a link farm designed to distribute malicious content or conduct phishing attacks. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification. No scripts were extracted from this sample.

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://laughingduck.org/uploads/1/3/0/5/130543684/disemonato.pdf
    • http://gcmcare.com/uploads/1/3/0/7/130739141/senofivugukejej_tutafizibubivum_dosizebubupuda.pdf
    • http://mogulmeadows.org/uploads/1/3/0/6/130621654/6119807.pdf
    • http://canadianproperty101.com/uploads/1/3/0/7/130776114/6832679.pdf
    • http://davidmarquesibanez.com/uploads/1/3/0/2/130270989/130270989.html#partitura+para+violino+la+vie+en+rose

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010ce.bin
1e080f9d83c740e48dbf08effb38447f125b1290fab72e5a8d1d6dce5d2b33b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10CE 9704 bytes
font_01_sfnt_off00004750.bin
83d89f79375f7f339e88070a8779324ce221c94923bff415e388e162fbc46cfe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4750 2604 bytes

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