Malicious PDF — malware analysis report

Static analysis result for SHA-256 38df59ec707c4012…

MALICIOUS

PDF

35.2 KB Authoring application: Adobe PDF Library 9.0
MD5: dda83e39fc6d8de6e057a7128d31141f SHA-1: 1a3e8e7102116030bf57405d1cc65063b093e3d2 SHA-256: 38df59ec707c401265e09d0bfe718d3dfdddeebf96c9c79b646b4d8d8b086d43
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded URLs are likely part of a link farm designed to manipulate search engine results or distribute further malicious payloads.

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://neaod.com/uploads/1/3/0/5/130543065/bupenexenijun-tibit-zodazepo-nujapever.pdf
    • http://bennettcoffeeroastingcompany.com/uploads/1/3/0/4/130476208/lutojimutum.pdf
    • http://ninamarcela.com/uploads/1/3/0/5/130543353/nunebofu_gaxifuvike_woxib.pdf
    • http://angeliquedeclercq.be/uploads/1/3/0/6/130622027/869411.pdf
    • http://allieplatt.com/uploads/1/3/0/2/130289400/jaxivowubi_komafugiso.pdf
    • http://mspokrantsband.ca/uploads/1/3/0/4/130492889/70c7c98ae47e46.pdf
    • http://zambiasafarihunting.com/uploads/1/3/0/5/130551374/130551374.html#can+branchial+cleft+cyst+become+cancerous
    • http://zambiasafarihunting.com/upload

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010ec.bin
92470e75ffc8a0f2ce79d12458d0d3b1dabcbd3ccd5e23991657d9e4698df02c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EC 7500 bytes

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