Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6b28e785fb139d99…

MALICIOUS

Office (OLE) / .DOCX

131.6 KB Created: 2020-09-30 05:26:00 Authoring application: Microsoft Office Word
MD5: 38bb8d81f915c123364498aca259ddf2 SHA-1: ed3753e1ed0eeb8e8895683fe3f02f28196efe20 SHA-256: 6b28e785fb139d9950f37bf989bed92089e9f22d3160a16699b2fc8b0d3500ef
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 was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9769541-0', indicating it is likely an Emotet downloader. The presence of a Document_Open macro and a CreateObject call strongly suggests that the VBA code within the document is designed to execute automatically and initiate the download of a secondary payload. The obfuscated nature of the VBA script prevents a detailed analysis of the specific download URL or execution method.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9769541-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769541-0
  • 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
b2b495189d2eb2b89dce9719098105d933c1125fa9413aec5a7ff49e851b8844		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10579 bytes

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