Malicious PDF — malware analysis report

Static analysis result for SHA-256 e986f0702efb712f…

MALICIOUS

PDF

36.0 KB Authoring application: Soda PDF
MD5: eec12ab8a3dc9ff6392423cce8eebdb8 SHA-1: 31899e82a56bbf9ca7f0192325fcec07f218ac22 SHA-256: e986f0702efb712fb65a83e31810609e6c30b9bc466c95d65078821d88067913
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files hosted on various domains, a technique commonly used for SEO poisoning or to redirect users to malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The embedded URLs are the primary indicators of compromise, suggesting a phishing or redirection campaign.

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://jlingnau.net/uploads/1/3/0/6/130605285/3140404.pdf
    • http://michaelpachelo.com/uploads/1/3/0/2/130272330/jorikimujumuf.pdf
    • http://recipework.com/uploads/1/3/0/4/130435556/5f3d8880f948.pdf
    • http://andymulligan.com/uploads/1/3/0/7/130776134/disanosozopenes.pdf
    • http://beradiantlyraw.com/uploads/1/3/0/4/130483940/998006fc.pdf
    • http://doodlepadart.com/uploads/1/3/0/6/130605125/be91f.pdf
    • http://sarahmelton.com/uploads/1/3/0/7/130738911/ca9c1a5f787ab36.pdf
    • http://canvasmcgill.ca/uploads/1/3/0/6/130603789/zejamexim-kamejivu.pdf
    • http://zipganizer.org/uploads/1/3/0/5/130589103/demafaxamajekov.pdf
    • http://valuetreecapital.com/uploads/1/3/0/6/130639896/9582757.pdf
    • http://12250parkway.com/uploads/1/3/0/3/130379170/vadabuzazulu.pdf
    • http://ndchair.com/uploads/1/3/0/8/130813496/130813496.html#tuberculous+otitis+media+complications

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000354f.bin
8d46f33717481621cf11f2d400f4c498e1af7c948796f2bed821860e93d89322		 pdf-font-stream PDF embedded font (sfnt) at offset 0x354F 8208 bytes

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