Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 73c08fb5d21afa3f…

MALICIOUS

Office (OLE) / .DOCX

183.2 KB Created: 2020-10-30 14:06:00 Authoring application: Microsoft Office Word
MD5: 9f319f374863c65dc683a2382f7ff7a2 SHA-1: 97600bf7923152ca48e7667aa4d52108337cef2e SHA-256: 73c08fb5d21afa3f0792e8eaa2db506500b69ce04b3b396e55eac1a8abf48ce1
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating an attempt to execute code upon opening. ClamAV detection and heuristic firings strongly suggest this is a variant of Emotet, a known downloader. The macro's obfuscated nature and use of CreateObject point to its role in fetching and executing a secondary payload.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9785300-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9785300-0
  • 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
953bcc7800f8e12231199058de4be56a41e5df3186000111c4b5440de64866f2
vba-macro oletools.olevba.extract_macros (decoded VBA source) 17395 bytes