Emotet — Office (OOXML) / .XLSX malware analysis

Static analysis result for SHA-256 069ab63de29bc0e1…

MALICIOUS

Office (OOXML) / .XLSX

115.1 KB Created: 2015-06-05 18:17:20 UTC Authoring application: Microsoft Excel 12.0000
MD5: 4e49c304133c096c2bf6cba63ef4e853 SHA-1: e69175881cee9042ae6b54533365656671caf8a7 SHA-256: 069ab63de29bc0e1c1c4eb94fdba0da9da9a22b68cd9f9280f13157136cc78d8
200 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with a specific Emotet signature. The presence of a Workbook_Open macro and CreateObject calls indicates that the VBA code is designed to execute automatically upon opening the Excel file. The script constructs a PowerShell command that downloads a payload from multiple URLs, including 'http://sumedhaonline.com/wp-content/hyzNXJ30XQEVcBRh', and saves it as 'jledshf.bat' in the programdata directory.

Heuristics 5

  • ClamAV: Xls.Downloader.EmotetExcel02223-9938902-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Downloader.EmotetExcel02223-9938902-0
  • 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.
  • VBA project inside OOXML medium OOXML_VBA
    Document contains a VBA project — VBA macros present

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
df1eb14c222394595c0518b49eec2b55ed9573146c5f1717dedceddd2e199a2b		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 12041 bytes
vbaProject_00.bin
1c07d60c7a1e790bec3c801dc2a31ecb10ea5fbe6f26cd3bc6943794dd73e9e1		 vba-project OOXML VBA project: xl/vbaProject.bin 42496 bytes

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