Emotet — Office (OLE) / .XLSX malware analysis

Static analysis result for SHA-256 5407846075c35327…

MALICIOUS

Office (OLE) / .XLSX

129.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel
MD5: 62a33cc268ca39e97e811d68cf1b23d6 SHA-1: 6c0384ab06d8f2b2fc06574a5b3a986eabc777a9 SHA-256: 5407846075c3532786f1e4ecddc7087b5219e3ebfff95b8e6212f1785cb11954
280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.001 PowerShell T1059.003 Windows Command Shell T1204.002 Malicious File T1105 Ingress Tool Transfer

The file contains VBA macros, specifically a Workbook_Open auto-execution routine, which is a common delivery mechanism for Emotet. The script leverages Wscript.Shell to create and execute VBScript and batch files. The reconstructed command line indicates the download of multiple payloads from various URLs. The presence of 'Doc.Downloader.EmotetRed02220-9938909-0' in the ClamAV detection further supports the Emotet family attribution.

Heuristics 7

  • ClamAV: Doc.Downloader.EmotetRed02220-9938909-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02220-9938909-0
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • 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
7a075e02dc1e88807280b9b84946715e79a3c091d50391301434649c77b78ea1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 12808 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.