Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 6d5f382b2aa75d0a…

MALICIOUS

Office (OLE) / .DOCX

166.5 KB Created: 2020-09-24 06:41:00 Authoring application: Microsoft Office Word
MD5: 8418e38fbdd48d11b351551bbc9721f5 SHA-1: 4f78175135c1238776f23153799c6b14624dcda8 SHA-256: 6d5f382b2aa75d0a79e6a165d850a0814905c88ac074ed68ff945190ce6068fb
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for initial execution. The macro attempts to construct and execute a PowerShell command. The ClamAV detection 'Doc.Trojan.Agent-9765752-0' further supports its malicious nature. The exact PowerShell command is obfuscated within the VBA code, but the intent is to execute a payload.

Heuristics 6

  • ClamAV: Doc.Trojan.Agent-9765752-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Agent-9765752-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
5fc186fdbad9f31c9e64d83153a39dd477b4feadffd069d1417de0a82694326f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18827 bytes

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