Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6ad080e71a8d5bd…

MALICIOUS

PDF

42.0 KB Authoring application: OpenOffice Draw
MD5: 9a2e4f95cbd6a4c33e9fbe93b08d84e5 SHA-1: a6824a0f617d7f240e29b1f36c105f05f93fef37 SHA-256: d6ad080e71a8d5bd0f485b3eaca68b3d96a0a005e426d8d39a1a7f71180db931
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a 'PDF_SEO_LINK_FARM' and ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The document body contains numerous embedded URLs, all of which are unknown reputation. These URLs are likely part of a phishing or redirection scheme to distribute further malicious content.

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://yopcrealab.org/uploads/1/3/0/4/130435743/4147625.pdf
    • http://qwikcheckapp.com/uploads/1/3/0/4/130436357/50867959ff.pdf
    • http://blscontractingllc.com/uploads/1/3/0/5/130539114/wiroroborowaf.pdf
    • http://nashobavalleyextractco.com/uploads/1/3/0/7/130739560/130739560.html#cerfa+cession+de+vehicule+pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fc9.bin
0196388c0c58510ba5c9ae665aee9a081975a75f696910c414dd44eca26e6aa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC9 8884 bytes
font_01_sfnt_off000057b8.bin
3b8f444268091131b76dda395b084bc99e1d85b6a341c873dd8669430b7e3b09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57B8 12292 bytes

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