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

Static analysis result for SHA-256 72e665a7d43027e4…

MALICIOUS

Office (OLE) / .DOCX

156.2 KB Created: 2020-10-16 19:32:00 Authoring application: Microsoft Office Word
MD5: 8285813478e7cd51a7baa2e9c1e6155c SHA-1: 9f81b9ebfd8be527b83a77888b108de72325a3bf SHA-256: 72e665a7d43027e4ad6206ba82bfb44f113e89c81b249b2c9ea29c45faf022dd
202 Risk Score

Malware Insights

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

This document contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating malicious intent. The ClamAV detection 'Doc.Malware.Emotet-9778628-0' strongly suggests it belongs to the Emotet family, which is known for downloading and executing further payloads. The VBA script's obfuscated nature and use of CreateObject point towards it attempting to download and run a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9778628-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9778628-0
  • 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
d7b10db6ad3bff10dd176d31b83ada7ffa72a5d7b1b67bb513aee8ccfc4d5f3f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15292 bytes

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