Analysis
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max time kernel
151s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
11/06/2022, 20:11
Static task
static1
Behavioral task
behavioral1
Sample
2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe
Resource
win7-20220414-en
General
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Target
2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe
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Size
1.4MB
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MD5
694aa9683c3724a4785928fa907347dd
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SHA1
fb3d6f38eef23f80b0aa4131a6c7e7748615f57e
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SHA256
2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd
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SHA512
533685d04658c23a6ff4c65e65df03775b5ff8b571032b8bbb826515679f0094a1c9d79f81ef7452f68d7c25440216790f95487cdd83858b915b997846559d52
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\win32.Lnk cscript.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini RegAsm.exe File opened for modification C:\Windows\assembly\Desktop.ini RegAsm.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2864 set thread context of 1900 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 84 -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly RegAsm.exe File created C:\Windows\assembly\Desktop.ini RegAsm.exe File opened for modification C:\Windows\assembly\Desktop.ini RegAsm.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1900 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe Token: SeDebugPrivilege 1900 RegAsm.exe Token: 33 1900 RegAsm.exe Token: SeIncBasePriorityPrivilege 1900 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1900 RegAsm.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2864 wrote to memory of 1568 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 82 PID 2864 wrote to memory of 1568 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 82 PID 2864 wrote to memory of 1568 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 82 PID 2864 wrote to memory of 1900 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 84 PID 2864 wrote to memory of 1900 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 84 PID 2864 wrote to memory of 1900 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 84 PID 2864 wrote to memory of 1900 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 84 PID 2864 wrote to memory of 1900 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 84 PID 2864 wrote to memory of 1900 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 84 PID 2864 wrote to memory of 1900 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 84 PID 2864 wrote to memory of 1900 2864 2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe"C:\Users\Admin\AppData\Local\Temp\2519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2864 -
C:\Windows\SysWOW64\cscript.exe"C:\Windows\System32\cscript.exe" //B //Nologo C:\Users\Admin\win32.vbs2⤵
- Drops startup file
PID:1568
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1900
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵PID:3364
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.4MB
MD5694aa9683c3724a4785928fa907347dd
SHA1fb3d6f38eef23f80b0aa4131a6c7e7748615f57e
SHA2562519333f678d3c74ed5716f727b06e7abf19c1f89443f4faf7009f18310b35dd
SHA512533685d04658c23a6ff4c65e65df03775b5ff8b571032b8bbb826515679f0094a1c9d79f81ef7452f68d7c25440216790f95487cdd83858b915b997846559d52
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Filesize
301B
MD5bb19a425fe7febb5170c4c857ca7cdf7
SHA11cff91a568bd3945144bd58abeb5bb42ba6f58b4
SHA256710e665eb73240b8907ea09851e369e6343f95f51d57b6d522f714ed6d052f50
SHA5127e904897e9ac0257cb30cc6f1593bf61560e59501395a180ba6ca23f233f9d580d294dd55ab1cddfa477da5e8b1fa174f0f47e6a5dd28ef2b00dd67461f08abf