Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 82f0bd4bdac36035…

MALICIOUS

Office (OLE) / .DOC

160.6 KB Created: 2020-09-15 23:02:00 Authoring application: Microsoft Office Word
MD5: edfcf207022a488f4942714d7bb6f9dd SHA-1: f84d6fba0d3cb5fb28d7e2ca535e4be871ed954b SHA-256: 82f0bd4bdac36035d974d39ad2fe45af7de1dcd1708e3908347da13fb75a7e87
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA code. The presence of the 'macros.bas' artifact further supports this. The embedded document body, though heavily obfuscated, contains strings that appear to be part of a PowerShell command construction, suggesting the macro's intent is to download and execute a second-stage payload. The family is identified as Emotet based on the ClamAV signature.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9762287-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762287-0
  • 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.
  • 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
2463ca5944a3498304fe918280f5b6583e6e8da36e1a3b40714097a3ead5b81e
vba-macro oletools.olevba.extract_macros (decoded VBA source) 25024 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.