Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 04c4ec6ce334fcb1…

MALICIOUS

Office (OLE) / .DOCX

179.5 KB Created: 2020-10-27 15:55:00 Authoring application: Microsoft Office Word
MD5: bc33d54e85cd0c06a7f5adc2b09c6bb2 SHA-1: 626e6c87dc2eb1b0157ea3002a6d62b8deceef50 SHA-256: 04c4ec6ce334fcb141b92d6e0a177aa261d773d79e3c9a671db3fe228bc7fa7d
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample contains a VBA macro that is automatically executed upon opening the document, as indicated by the Document_Open heuristic. This macro utilizes CreateObject to likely download and execute a second-stage payload, a common Emotet behavior. The ClamAV detection further supports the Emotet family attribution.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
  • 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
041f40187eb07e2256edf903ca2aa818eaff7dc6fcfd4bf44314c9f8902df953		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16848 bytes

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