Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 79298b538c292c06…

MALICIOUS

Office (OLE) / .DOCX

153.8 KB Created: 2020-10-16 13:32:00 Authoring application: Microsoft Office Word
MD5: 729ad2347381f4d8df9e812d5f456def SHA-1: 83d73e970841b59b6af4b10b69f1954dd362ce5c SHA-256: 79298b538c292c06869d7112eed805d54d8babfb4295a9963eab697f77a77832
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1497.001 System Checks: System Info Discovery

The sample contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating malicious intent. ClamAV detection confirms it as Emotet malware. The obfuscated VBA code likely functions as a downloader for a second-stage payload, a common Emotet tactic. The presence of a Document_Open macro and the Emotet detection strongly suggest this is a spearphishing attachment.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9778560-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9778560-0
  • 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
80b8cf2680dee027d2b0bedfb311ad72d589d776013195663ff998d7cc50edcd
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15454 bytes