Emotet — Office (OLE) / .XLS malware analysis

Static analysis result for SHA-256 301b0ec6062902ca…

MALICIOUS

Office (OLE) / .XLS

151.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel
MD5: 054c47f5626eb340cfe3da037a2245b8 SHA-1: cdfd0bc341bab5f6fe31942fba67d0a107c259a6 SHA-256: 301b0ec6062902ca7b451fd0f11d291a0b960f1aaee9c12c67cb714c3ed4f395
280 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is an Excel file containing a Workbook_Open VBA macro, which is a common delivery mechanism for Emotet. The macro uses CreateObject to execute a batch file and a VBScript, which in turn downloads and executes a second-stage payload from multiple URLs. The reconstructed URL for the payload is 'http://store.uxdummmit.com/wp-admin/VfgB5Q7Z/'. The presence of Wscript.Shell and CreateObject calls, along with the specific macro name and ClamAV detection, strongly indicate Emotet.

Heuristics 7

  • ClamAV: Doc.Downloader.EmotetExcel02222-9938901-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetExcel02222-9938901-0
  • 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
df1eb14c222394595c0518b49eec2b55ed9573146c5f1717dedceddd2e199a2b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 12041 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.