Analysis
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max time kernel
132s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
22-12-2023 13:00
Static task
static1
Behavioral task
behavioral1
Sample
94e73932bf2784e31572c764f982d4d0.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
94e73932bf2784e31572c764f982d4d0.ps1
Resource
win10v2004-20231215-en
General
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Target
94e73932bf2784e31572c764f982d4d0.ps1
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Size
656KB
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MD5
94e73932bf2784e31572c764f982d4d0
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SHA1
73a644b56f6f279596b4fcece37214d50cabbb8d
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SHA256
0bed22946ec72f99934b49d8c96259617e09f598f94c423178425fbe23fa0a80
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SHA512
e1c57443dc543264337095df291a0b0b5e69d0e7c359b0ea01cddbb9b3e176d57a07198ff8086a11d7e44a066983831d895a0d7fdd0fbe24e65a94039e0deb43
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SSDEEP
12288:EZjw0RJ9u5ILYDxD3fxYehza/tw6448TVkc5A+:g38Tmr+
Malware Config
Extracted
oski
/103.114.107.28/l22/
Signatures
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Oski
Oski is an infostealer targeting browser data, crypto wallets.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
powershell.exedescription pid process target process PID 2148 set thread context of 2376 2148 powershell.exe aspnet_compiler.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2552 2376 WerFault.exe aspnet_compiler.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 2148 powershell.exe 2148 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 2148 powershell.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
powershell.exedescription pid process target process PID 2148 wrote to memory of 2376 2148 powershell.exe aspnet_compiler.exe PID 2148 wrote to memory of 2376 2148 powershell.exe aspnet_compiler.exe PID 2148 wrote to memory of 2376 2148 powershell.exe aspnet_compiler.exe PID 2148 wrote to memory of 2376 2148 powershell.exe aspnet_compiler.exe PID 2148 wrote to memory of 2376 2148 powershell.exe aspnet_compiler.exe PID 2148 wrote to memory of 2376 2148 powershell.exe aspnet_compiler.exe PID 2148 wrote to memory of 2376 2148 powershell.exe aspnet_compiler.exe PID 2148 wrote to memory of 2376 2148 powershell.exe aspnet_compiler.exe PID 2148 wrote to memory of 2376 2148 powershell.exe aspnet_compiler.exe
Processes
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\94e73932bf2784e31572c764f982d4d0.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2148 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe#cmd2⤵PID:2376
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2376 -s 11003⤵
- Program crash
PID:2552
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2376 -ip 23761⤵PID:916
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82