Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0445f58906efb06c…

MALICIOUS

Office (OLE) / .DOCX

154.0 KB Created: 2020-12-28 15:43:00 Authoring application: Microsoft Office Word
MD5: 33bb7261697a8e40aa5fc135db9a070c SHA-1: 213d0fbec9b11230dc815f5a53f7ca353f041208 SHA-256: 0445f58906efb06cfc4317964e67cc1dca9616173ccf38856ca9126080eb2e0e
242 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 common Emotet infection vector. The macro attempts to read and execute binary data from various hardcoded file paths, suggesting it acts as a downloader for a second-stage payload. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' further supports the Emotet family attribution.

Heuristics 7

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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
a004a96685dc375590aeec65acf06fce9e74ef2bbe0aa7a48bc315f9645e3700		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6009 bytes

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