Xls.Dropper.Agent-7659550-0 — Office (OLE) / .XLS malware analysis

Static analysis result for SHA-256 6e73eee818a7ce59…

MALICIOUS

Office (OLE) / .XLS

58.5 KB Created: 2020-04-08 08:02:22 Authoring application: Microsoft Excel
MD5: ad2f362e19d773e7728e4dadc2f98ba8 SHA-1: 19272fcc0c36adac3d2c10d91816abde5bf7efc7 SHA-256: 6e73eee818a7ce59c0ef6d73a2505e7b6bb699273710a7d83897e500a14fee70
280 Risk Score

Malware Insights

Xls.Dropper.Agent-7659550-0 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1203 Exploitation for Client Execution

The file is an Excel spreadsheet containing VBA macros. Heuristics indicate the use of WScript.Shell and the Shell() function, which are commonly used to execute arbitrary commands. The macro attempts to execute a command via WScript.Shell, likely to download and run a secondary payload. The ClamAV detection name 'Xls.Dropper.Agent-7659550-0' further supports its nature as a dropper.

Heuristics 6

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • ClamAV: Xls.Dropper.Agent-7659550-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Dropper.Agent-7659550-0
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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
c55c640dea6229d89e3d05372ba4b930a9ff67c0899325f8b604a9ef9cef4251		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1711 bytes

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