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

Static analysis result for SHA-256 5dd221021744417b…

MALICIOUS

Office (OLE) / .DOCX

153.7 KB Created: 2020-09-22 12:58:00 Authoring application: Microsoft Office Word
MD5: 7f07a7f32e019f83ea84b634da264c80 SHA-1: e1836778d0fa885a9fa63e9d72df794f65ceca9c SHA-256: 5dd221021744417bff46bb5b349b66b0417efc8148a1f40263013ea591e10ba0
242 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a Microsoft Word document with a high-confidence detection for VBA macros, specifically a Document_Open macro that uses CreateObject and GetObject calls. The VBA script, while obfuscated, appears to be part of a macro-based downloader. The presence of a Document_Open macro strongly suggests an attempt to execute malicious code upon opening the document, aligning with the characteristics of a spearphishing attachment.

Heuristics 7

  • ClamAV: Doc.Malware.Ewtz-9765445-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Ewtz-9765445-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
3534612e311adddbcf2e093d61bfa43aa100b688e0fa70d64062312eb6cd9cc9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17155 bytes

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