Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0ba8722ac90d42b1…

MALICIOUS

Office (OLE) / .DOCX

218.0 KB Created: 2020-10-28 06:34:00 Authoring application: Microsoft Office Word
MD5: 9f7d6048eeeb293d68623dd8ad10cb7f SHA-1: c5c9c9a47befe3eee82bf987be714470533b09d0 SHA-256: 0ba8722ac90d42b15c805f5c313354077a50f4ec57e1fbb5fcf6600c690b96ef
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 macro, which is a common technique for Emotet. The macros are heavily obfuscated, but the presence of CreateObject and p-code execution suggests an attempt to download and execute a payload. The ClamAV detection also strongly indicates Emotet.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
  • 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
5c8508b4422f9cf9f0517311e463bebb8a10b40538c4b01e1d12399253dacfe3
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16608 bytes