Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 c765ecf47cc4ba7c…

MALICIOUS

Office (OLE) / .DOC

179.5 KB Created: 2019-12-11 20:47:00 Authoring application: Microsoft Office Word
MD5: 65f6dc37499e3054f0f328b27ceef4e7 SHA-1: 08677335cc0b8d4641ebbf997e348dc56dcdaa29 SHA-256: c765ecf47cc4ba7c01f89d2a7349570cd9ffe689498c807227fadcc78f291da2
300 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Management Instrumentation

The sample is a malicious OLE document containing VBA macros. The 'Document_Open' macro is configured to auto-execute and uses CreateObject to launch a WMI process, indicating it's designed to download and execute a second-stage payload. ClamAV detection confirms this as 'Doc.Downloader.Emotetdldr-7446545-0', a known Emotet downloader variant.

Heuristics 8

  • VBA WMI Win32_Process launcher critical OLE_VBA_WMI_PROCESS_CREATE
    VBA macro builds or references a WMI moniker for Win32_Process and invokes .Create to start a command. This is a high-confidence macro execution chain that often hides the WMI class name through string concatenation or helper functions.
  • ClamAV: Doc.Downloader.Emotetdldr-7446545-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotetdldr-7446545-0
  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
3eba2477268d908cabce7ed5a67f355a13d324c8a65e71033f9e97da21d39d20
vba-macro oletools.olevba.extract_macros (decoded VBA source) 7789 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.