Malicious Office (OLE) / .EXE — malware analysis report

Static analysis result for SHA-256 bb4cc408f5898a2e…

MALICIOUS

Office (OLE) / .EXE

19.5 KB Created: 2001-05-21 13:01:08 Authoring application: Microsoft Excel
MD5: 54d9bd00f2e811f03367a9d83a509a79 SHA-1: 26f33265ba972ed765888002e9c6f846e3a06931 SHA-256: bb4cc408f5898a2e97b5fb970d8ea101526f1d51cc01bc39a82c41ccb795d0d7
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The critical ClamAV detection of 'Xls.Trojan.Laroux-22' and the presence of an Auto_Open VBA macro strongly indicate malicious intent. The Auto_Open macro is designed to execute automatically when the document is opened, likely to download and execute a second-stage payload. The file's metadata indicates it is an OLE file created by Microsoft Excel.

Heuristics 4

  • ClamAV: Xls.Trojan.Laroux-22 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Trojan.Laroux-22
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Auto_Open macro high OLE_VBA_AUTO
    Auto_Open macro
  • 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
803f698c9a7f001a2348779f5a99405c4518e8d18ee3b4c9e88ef7a4b24c14e6		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3864 bytes
Detection
ClamAV: Xls.Trojan.Laroux-22
Obfuscation or payload: unlikely

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