Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 038ce32c78cddd37…

MALICIOUS

Office (OLE) / .DOCX

156.8 KB Created: 2020-12-30 13:16:00 Authoring application: Microsoft Office Word
MD5: 42f84f81a3739a329f2f06b34742a080 SHA-1: 3e396529afb60f25fe07071f900878ad8e6d1476 SHA-256: 038ce32c78cddd37592b182971d0c98b8c1d4dc9b398b593a5d28aba6e947b2a
202 Risk Score

Malware Insights

Emotet · confidence 90%

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

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for Emotet. The macro uses CreateObject to interact with the file system, attempting to create files with suspicious names and paths. The ClamAV detection also strongly suggests Emotet. The obfuscated nature of the VBA code and the file system interaction indicate a downloader or initial stage payload.

Heuristics 6

  • 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.
  • 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
56a4885fb35696e61eb89c4193c6dbd09786b2db28cac633c3290a9c612d3393		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6670 bytes

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