Emotet — Office (OLE) / .XLSX malware analysis

Static analysis result for SHA-256 24e3f63d697864ce…

MALICIOUS

Office (OLE) / .XLSX

122.5 KB Created: 2022-02-09 09:48:26 Authoring application: Microsoft Excel
MD5: e50e283e8b03b639502e664e7c02d988 SHA-1: 60dd7608e230631bed602e2bb4b2bbf9ffcc8960 SHA-256: 24e3f63d697864cebd711e13bb304b420e940fd5bfa6505fd67bc97701265249
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The file is identified as malicious by ClamAV with the signature 'Xls.Downloader.Emotet-ab81c42b2bd4747e-9951196-0'. High-severity heuristics indicate the presence of a Workbook_Open VBA macro that uses CreateObject to execute code. The VBA script contains obfuscated strings that reconstruct to the following URLs: 'http://temp.com/NAT_E_22_2009/BI710N4cQA6R3/', 'http://temp.com/NAT_E_22_2009/BI710N4cQA6R3/', and 'https://redington.karmart'. It also specifies paths for dropped files: 'c:\programdata\oue4hjld.vbs' and 'c:\programdata\bhnasleil.bat'. The script's intent is to download and execute a second-stage payload from these URLs.

Heuristics 6

  • ClamAV: Xls.Downloader.Emotet-ab81c42b2bd4747e-9951196-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Downloader.Emotet-ab81c42b2bd4747e-9951196-0
  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
825ae434a612b6ff25f8a2ace2ca7a2a8ece3ee3a8ae60d621d0310d318a9b62		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 52433 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.