Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 6fd624d3041f0bd2…

MALICIOUS

Office (OLE) / .DOC

188.5 KB Created: 2020-10-21 06:35:00 Authoring application: Microsoft Office Word
MD5: eea059508c2de02f4d1d5268a031de99 SHA-1: 40229305ed3920510d2cf05a40588fb8aecbe2da SHA-256: 6fd624d3041f0bd2b242241ae31cd75caeabaf5d8a8718e32dc5dbffd0f313a1
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains a VBA macro that executes upon opening the document, as indicated by the Document_Open and OLE_VBA_PCODE_AUTOEXEC_EXEC heuristics. The macro uses CreateObject, a common technique for launching malicious payloads. ClamAV detection confirms this as a known Emotet variant, specifically 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0', which typically downloads and executes further malware. The obfuscated nature of the VBA code suggests an attempt to evade detection.

Heuristics 6

  • 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.
  • 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

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