Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 8499ca7bd03946d7…

MALICIOUS

Office (OLE) / .DOCX

139.8 KB Created: 2020-09-30 06:24:00 Authoring application: Microsoft Office Word
MD5: 0fca3264a97e2052b0eb38d1532ff68d SHA-1: 7d1b75576577b1a6356488fc5c8fd1dcc1a945d9 SHA-256: 8499ca7bd03946d76958ade70190e439f10d822405083e41472af011d95445de
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is identified as malicious by ClamAV with the signature "Doc.Downloader.Emotet-9769539-0", indicating it is a known Emotet downloader. The presence of a "Document_Open" macro and a "CreateObject" call within the VBA code strongly suggests the execution of a malicious payload upon opening the document. The obfuscated nature of the VBA script prevents a detailed analysis of its exact actions, but its purpose is to download and execute a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9769539-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769539-0
  • 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
bf242d2b3eef8a928e95104450a1995792bbbbd70e8fa1b795dc489b41229ac6		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10567 bytes

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