Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 a45457d61dc4348e…

MALICIOUS

Office (OLE) / .DOC

124.6 KB Created: 2020-09-30 20:57:00 Authoring application: Microsoft Office Word
MD5: bb7478bedac30afa141b950d69137485 SHA-1: 2bb19b6d275906f0de12bae338139a97570f1211 SHA-256: a45457d61dc4348ead8ec41d69cbf25f7a141e5ccf3cea45583e5a1a666cef6d
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample is a malicious Microsoft Word document containing a VBA macro. The 'Document_Open' macro is automatically executed upon opening, and it uses 'CreateObject' to initiate code execution. ClamAV detection explicitly identifies this as Emotet. The macro's primary function is to download and execute a second-stage payload, a common Emotet delivery technique.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9769866-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769866-1
  • 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
7cb9b8e5dcd6093fc36997f1ddba9977c3343a23efe112843f21e09b69e64d3a
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10245 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.