Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 00f42d9a9acefed8…

MALICIOUS

Office (OLE) / .DOCX

158.4 KB Created: 2020-09-17 04:18:00 Authoring application: Microsoft Office Word
MD5: 0de38ffda0eb5f994f6caca06b9a1164 SHA-1: 210f22c77b5b43ce7bc84b652ea5a08e75b802d7 SHA-256: 00f42d9a9acefed89581ed82845dd70bf86cca472f771ac1f7ca4bf48e7b2274
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, Document_Open execution, and CreateObject calls strongly indicate a malicious document. The VBA script contains obfuscated code that likely attempts to download and execute a second-stage payload, consistent with Emotet downloader behavior. The presence of the Document_Open auto-execution macro is a common Emotet delivery technique.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9762517-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762517-0
  • 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
991adc1ef45638c65bfb92a710fcbce350fe87d4c8d6f02dc16d9130cc12b6e6
vba-macro oletools.olevba.extract_macros (decoded VBA source) 20616 bytes