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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/02/2023, 19:17
Static task
static1
Behavioral task
behavioral1
Sample
Loader.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
Loader.exe
Resource
win10v2004-20220812-en
General
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Target
Loader.exe
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Size
1.6MB
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MD5
a44e526804469076d712e8a05ddd7759
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SHA1
7010fda540e70139020a7a79730e74e99bd8e6c9
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SHA256
46d7128963bde013c8ec359b285e47eabbf9c88e332735e02ced518773e8e95f
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SHA512
04c40ef00c80d641c4f7bced8aefc180d695ea23ef79e272167f1a567484be2ab7031ca55a246cbeba1ed0c0ed93223fc2a33daed7f2048c62f169f0e6325b36
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SSDEEP
49152:fBvdZG5o8InNXL9Qn0HpZjI64n2hcyfT2:pFZG5oNnRfh9
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Google\\Chrome.exe\"," Loader.exe -
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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation Loader.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2232 set thread context of 1412 2232 Loader.exe 84 -
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 9 IoCs
pid Process 908 powershell.exe 908 powershell.exe 1412 MSBuild.exe 1412 MSBuild.exe 1412 MSBuild.exe 1412 MSBuild.exe 1412 MSBuild.exe 1412 MSBuild.exe 1412 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 908 powershell.exe Token: SeDebugPrivilege 2232 Loader.exe Token: SeDebugPrivilege 1412 MSBuild.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2232 wrote to memory of 908 2232 Loader.exe 80 PID 2232 wrote to memory of 908 2232 Loader.exe 80 PID 2232 wrote to memory of 1412 2232 Loader.exe 84 PID 2232 wrote to memory of 1412 2232 Loader.exe 84 PID 2232 wrote to memory of 1412 2232 Loader.exe 84 PID 2232 wrote to memory of 1412 2232 Loader.exe 84 PID 2232 wrote to memory of 1412 2232 Loader.exe 84 PID 2232 wrote to memory of 1412 2232 Loader.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\Loader.exe"C:\Users\Admin\AppData\Local\Temp\Loader.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2232 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwAyAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:908
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1412
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