Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 522a6a9648d42327…

MALICIOUS

Office (OLE) / .DOCX

195.5 KB Created: 2020-09-22 04:18:00 Authoring application: Microsoft Office Word
MD5: ebdb016b34b62e52d77c44ff1065793f SHA-1: a0ec4bf0f4b55d7b5a3fdd40a517883699dc0d18 SHA-256: 522a6a9648d423274df8aedbe2908eeb47d0b79b0d0a64387dc0ad6745235bd1
280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample is a Microsoft Office document containing VBA macros, specifically triggering a Document_Open macro that uses CreateObject and GetObject calls. ClamAV identifies this as Doc.Malware.Emotet-9764756-0. The presence of a Document_Open macro and the Emotet family attribution strongly suggest the macro is designed to download and execute a second-stage payload. The embedded macros.bas file is a key artifact.

Heuristics 8

  • ClamAV: Doc.Malware.Emotet-9764756-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9764756-0
  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
3b0af88f4dd9c23a17bbdbbca50e89a637a2364695c54b84b34b6c26baade961
vba-macro oletools.olevba.extract_macros (decoded VBA source) 19032 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.