Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5d3df9c2456b7ce7…

MALICIOUS

Office (OLE) / .DOCX

195.1 KB Created: 2020-09-16 06:48:00 Authoring application: Microsoft Office Word
MD5: 44cd5c6ab4e2e2248f714fc97b41251e SHA-1: 0fae8ba29b93c2663282e496a0f72bb5a55de689 SHA-256: 5d3df9c2456b7ce750073492a426f7769a92db04ff230f7d4a15eb20384dd207
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a strong indicator of malicious intent. ClamAV detection explicitly names this file as Emotet. The VBA code appears to be obfuscated but the presence of CreateObject and the auto-execution routine suggests it's designed to download and run a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9762408-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762408-0
  • 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
df4fb732414a2f9f369567b5a31d1b266832fcbd15a8b5f56fa79c20074a71e7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25460 bytes

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