Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0b0e98c5728fc357…

MALICIOUS

Office (OLE) / .DOCX

163.1 KB Created: 2020-10-01 15:57:00 Authoring application: Microsoft Office Word
MD5: 259cb5c03dad288da54b9ad0697c34b9 SHA-1: 7ba0e093936b32889a98e4628adc639ff36acdd8 SHA-256: 0b0e98c5728fc357c3cf405f786733bf6b371b19345e5fc2c19f8d0f4c9577ad
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample contains VBA macros, specifically a Document_Open macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names Emotet, a well-known malware family. The VBA code uses CreateObject, a common technique for executing malicious payloads, and appears to be obfuscated, suggesting it attempts to download and run a second-stage payload. The presence of a Document_Open macro and the Emotet detection strongly suggest this is a spearphishing attachment.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9770197-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9770197-0
  • 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
34626713db5720b3147c8823fb8dfd0fe34a12fce4df5a0aa65f24e3eab9d078
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10368 bytes