Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 033fa28cdbf40b41…

MALICIOUS

Office (OLE) / .DOCX

125.7 KB Created: 2020-09-30 20:57:00 Authoring application: Microsoft Office Word
MD5: 6ce6464f4cd6ebe26fffca9f7b4f2d91 SHA-1: cd98ed9c0030f4d388dc77f5bd61855a7d0f8261 SHA-256: 033fa28cdbf40b41870947400cf8607c9cde669b8fcf25abe947f276b062205c
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common Emotet infection vector. The VBA code is heavily obfuscated, but the presence of CreateObject and the auto-execution macro strongly suggest it's designed to download and run a second-stage payload. ClamAV detection further confirms its malicious nature as Emotet.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9769866-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769866-1
  • 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
7cb9b8e5dcd6093fc36997f1ddba9977c3343a23efe112843f21e09b69e64d3a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10245 bytes

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