Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 1905997bc71b5963…

MALICIOUS

Office (OLE) / .DOCX

151.5 KB Created: 2020-09-22 07:23:00 Authoring application: Microsoft Office Word
MD5: 60ae9f1eaa1bf4e9814c946ea514e868 SHA-1: afacb552ae53089e4a9fd56070b6773b67f0f73e SHA-256: 1905997bc71b596381c75393456d143e27aeb93fec85e5b38a5cb4892d5da8d3
242 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 heuristics indicate the use of CreateObject and GetObject, suggesting the execution of external code. The ClamAV detection explicitly names Emotet. The VBA script is heavily obfuscated but its structure and the presence of Document_Open indicate it's designed to execute a malicious payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9765070-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765070-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
37ce3f491be0f3d0a753fc5c7339c798cd89a6843cff6094a48ab180ad94ccb1
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16563 bytes