Malicious PDF — malware analysis report

Static analysis result for SHA-256 0436e962e525bb86…

MALICIOUS

PDF

41.6 KB Created: 2015-08-30 21:40:47 +03:00 Authoring application: 1 (via Softplicity)
MD5: 9c9bf94ccd815517d5fb6f6c521b8bc5 SHA-1: 4be001ce145dee71174ce91fce59a3c1dd6a372d SHA-256: 0436e962e525bb8613b823d2a2840fb56a275d73272048e0480abf136efc6c5d
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains an embedded URI pointing to 'http://my.tomsorg.com/file.php?q=Wisc-iv'. ClamAV identified the file as 'Pdf.Dropper.Agent-8024148-0', indicating a dropper functionality. The document body and embedded link suggest a lure related to 'Wisc-iv Administration And Scoring Manual Pdf', likely to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier clean score 0.0336

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-8024148-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8024148-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://my.tomsorg.com/file.php?q=Wisc-iv
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00003229.bin
dad84034612900c8205595d0e51ce706fc66c86d1d87fbd6de9cd2fdba6a14fb		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3229 20032 bytes
font_01_sfnt_off00006896.bin
6ae424e963aa1321c5a8fbcbab8d7da1f6419d508c86c0bbe94c477e3a080430		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6896 1452 bytes
font_02_sfnt_off00007017.bin
a06718aae0e41497936cd22b4fa215687a989c5e238bc0e3a33636ba51432fef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7017 17012 bytes

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