Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 586aaad57ae25b46…

MALICIOUS

Office (OLE)

156.3 KB Created: 2020-09-15 16:41:00 Authoring application: Microsoft Office Word
MD5: e4f6805ae14baf6fad633d8c6315ec12 SHA-1: b3b53879a16a9a1f4b135d0e106dedd128eb5806 SHA-256: 586aaad57ae25b46ebdf77e506d4381558cdb2d3692ac3d02ec0ef904a3f27e4
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9762373-0', strongly suggesting the Emotet family. High-severity heuristics indicate the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject. This points to a macro-based execution of malicious code, typical for Emotet's initial infection vector. The VBA macros are likely responsible for downloading and executing a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9762373-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762373-0
  • 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
093df0d9d9ab28d17e10b8a3d4d0d2f7c34db272923888f5dfa322b516df3f65
vba-macro oletools.olevba.extract_macros (decoded VBA source) 22905 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.