Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 a1d3732aabef441b…

MALICIOUS

Office (OLE) / .DOCX

131.0 KB Created: 2020-09-28 15:20:00 Authoring application: Microsoft Office Word
MD5: d495e4cce9925370fe0f5ab0aa078f0f SHA-1: ba6a65d539acc7d0a658c9468d195e18c06161d1 SHA-256: a1d3732aabef441bac4f6c5a0f3893d8cf0026cfa88abf87fe0e771c8e5b025d
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 OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro execution. The presence of a Document_Open macro suggests an attempt to automatically run code upon opening the document, likely to download and execute a secondary payload. The ClamAV signature specifically names Emotet, a known banking trojan and downloader.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9768661-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9768661-0
  • 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
2ce77a90790088f293710a707301ae69bfebe17386d7804fba58a5e382e47c64
vba-macro oletools.olevba.extract_macros (decoded VBA source) 6657 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.