Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6c6561c72e46b566…

MALICIOUS

Office (OLE) / .DOCX

178.5 KB Created: 2020-10-26 07:35:00 Authoring application: Microsoft Office Word
MD5: 3f75d1804b1429440f64c738ae6d8b2b SHA-1: 328d8c13518ad77bd91757dffca66c590cf01b62 SHA-256: 6c6561c72e46b5666d11c22a7e9bf37f6df910f233f6296362ef23fff9340aed
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-9784039-0', indicating it is likely an Emotet downloader. The presence of VBA macros, specifically a Document_Open macro that uses CreateObject, strongly suggests the execution of malicious code. The obfuscated VBA script likely attempts to download and execute a second-stage payload from a remote source, aligning with Emotet's typical behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9784039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784039-0
  • 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
d0242cccf1fc69ef1bfc48b1645bc10ec37741bf93e2efd542678ac22956a298		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15455 bytes

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