Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 4647f30088338e76…

MALICIOUS

Office (OOXML)

14.0 KB Created: 2015-06-05 18:17:20 UTC Authoring application: Microsoft Excel 16.0300 First seen: 2021-01-15
MD5: 812f1ae3b0b9888a5d1f2683a08195f2 SHA-1: 058c3a85cdbfd7b322b5517a8c1ce55f851c9087 SHA-256: 4647f30088338e7669dff9b91a480e9cec58fc0cf436e4df1b2de9dedd165e53
140 Risk Score

Heuristics 3

  • VBA project inside OOXML medium 2 related findings OOXML_VBA
    Document contains a VBA project — VBA macros present
  • Potential Shell call in VBA critical OLE_VBA_SHELL
    Potential Shell call in VBA
    Matched line in script
    Dbl = Shell(Program, vbNormalFocus)
  • PowerShell reference in VBA critical OLE_VBA_PS
    PowerShell reference in VBA
    Matched line in script
    Program = "powershell.exe Invoke-Expression(DownloadString DownloadFile ReadAllBytes)"

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 838 bytes
SHA-256: aa0bdf27b89c7859bdc3c80115134e4d05090c81c539eff16f49919ebc53c4eb
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Module1"
Sub Rectangle1_Click()
Dim Program As String
Dim Dbl As Double
Program = "powershell.exe Invoke-Expression(DownloadString DownloadFile ReadAllBytes)"
Dbl = Shell(Program, vbNormalFocus)
End Sub

Attribute VB_Name = "ThisWorkbook"
Attribute VB_Base = "0{00020819-0000-0000-C000-000000000046}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = True
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = True

Attribute VB_Name = "Sheet1"
Attribute VB_Base = "0{00020820-0000-0000-C000-000000000046}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = True
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = True
vbaProject_00.bin vba-project OOXML VBA project: xl/vbaProject.bin 15360 bytes
SHA-256: 95d7e1004432d72ea12e73e16f71ca0087e24e3325ae06295b0aa6d2476573b8

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