Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 c11b3260b8910527…

MALICIOUS

Office (OLE) / .DOCX

165.9 KB Created: 2021-01-05 07:28:00 Authoring application: Microsoft Office Word
MD5: 29fcc61bd4431e20d351cc7fda105d8e SHA-1: adc74c1f5aca69fe1029127412b07652b485be05 SHA-256: c11b3260b89105272c919fd8e27cdbb61559283ffaf6b0da431de10d27887125
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, including auto-execution and CreateObject calls, strongly indicate a malicious downloader. The presence of a Document_Open macro suggests an attempt to automatically execute malicious code upon opening the document. While the document body is heavily obfuscated, the overall pattern aligns with Emotet's typical delivery mechanism of using macro-enabled documents to download and execute further stages.

Heuristics 7

  • 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.
  • 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
a19bea0b68e66c642d89ca357193de473f2db600ca0ce526dc79ce8aaabe41a9
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10612 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.