Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 03eacdb0b15a3c6d…

MALICIOUS

Office (OLE) / .DOCX

156.7 KB Created: 2020-12-30 07:47:00 Authoring application: Microsoft Office Word
MD5: cf0684166fb1a09d16025c162f393c95 SHA-1: 758c8bc3baeb79735f123250bd73dd7d10769109 SHA-256: 03eacdb0b15a3c6d3f612fd7c325c8cf7527ed0ae7bdf7f202dac5108b0f0a31
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059 Command and Scripting Interpreter T1105 Ingress Tool Transfer

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for Emotet. The macro uses CreateObject to interact with the file system, attempting to create and write to files with obfuscated names and paths. This indicates the macro's purpose is to download and execute a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
9bf607663b8a2bf6d5409ee86f6e92f88c816fbcbd12854fba6197389a76ce81
vba-macro oletools.olevba.extract_macros (decoded VBA source) 6567 bytes