Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 63a579750829b23e…

MALICIOUS

Office (OLE) / .DOCX

149.6 KB Created: 2020-09-29 07:27:00 Authoring application: Microsoft Office Word
MD5: a52861b60341294480fd9d179b67a5ee SHA-1: ebd07959adde3bc1313ca86999c2dff05853b3a4 SHA-256: 63a579750829b23e29d7af140f466d2120b814721f7071d50652242ed7c41ddd
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 common technique for Emotet. The macro uses CreateObject and obfuscated p-code, indicating an attempt to download and execute a secondary payload. ClamAV detection further confirms its malicious nature as Emotet.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9769096-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769096-0
  • 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
7fe684c304685628252d7c0111d3e33f34436ae7810b3dde5f2aa07edc7bb621
vba-macro oletools.olevba.extract_macros (decoded VBA source) 8166 bytes