Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5a3ee5bc59e39199…

MALICIOUS

Office (OLE) / .DOCX

202.2 KB Created: 2020-09-17 11:10:00 Authoring application: Microsoft Office Word
MD5: b2ab67c3cab748ecb42f7f4a3030bdc6 SHA-1: 4add697672085ec7404b08dcfe413588fa39d2f2 SHA-256: 5a3ee5bc59e391993e4ac509198bf90d7b42b9f9f5813722b892a65138c596f4
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for Emotet. The heuristic firings indicate the use of CreateObject and p-code execution, suggesting the macro is designed to execute arbitrary code. The ClamAV detection explicitly names this as an Emotet variant, reinforcing the family attribution. The macro likely downloads and executes a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Dropper.EmotetWinMob0920-9636503-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetWinMob0920-9636503-0
  • 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
f75cb34853fc7667030208f5884171d2f5ac18f4d450c41594c4566fd908b9ea		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20610 bytes

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