Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 eacff736f8b2dd56…

MALICIOUS

Office (OLE) / .DOC

188.5 KB Created: 2020-10-21 06:35:00 Authoring application: Microsoft Office Word
MD5: 6c28c9970dbaefacd3b83befeee0f413 SHA-1: 2ab5aa5aa5da3f6d6a5641ac9d6ffe6c5966b560 SHA-256: eacff736f8b2dd566e31558748f6a61037203b68ec084fdb29476ece21c3c246
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_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate a malicious macro-based dropper. The presence of a Document_Open macro that uses CreateObject suggests the execution of embedded VBA code designed to download and run a second-stage payload. The ClamAV signature 'Doc.Dropper.EmotetBlueUpdate1020-9780531-0' directly points to the Emotet family.

Heuristics 7

  • ClamAV: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0
  • 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
f96fcb8cc4916d97c835c4422355f14f0c9757157ab8f3fd4f7e89ea3c4a99e6
vba-macro oletools.olevba.extract_macros (decoded VBA source) 20702 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.