Analysis
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max time kernel
1s -
max time network
146s -
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 02:53
Static task
static1
Behavioral task
behavioral1
Sample
56d68b21e189451019367c59f00ee597.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
56d68b21e189451019367c59f00ee597.ps1
Resource
win10v2004-20231215-en
General
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Target
56d68b21e189451019367c59f00ee597.ps1
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Size
656KB
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MD5
56d68b21e189451019367c59f00ee597
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SHA1
e0074b5041539fe58295d9763693d809f0bcf1df
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SHA256
19b3d1605a53c09fa8a8fc3675c928cb5403bdef1e3bd0b3c4d69f56a06e436d
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SHA512
cdf7f5c3b23571c9e9dd96db40febea56abd5b9554526fe89cc6d2a66638c5d685ea08a841700042194316906b1a5332222057e983f2d2f8f130cdfb0b78e2fa
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SSDEEP
12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64a8TVkc5A+:g3CTmr+
Malware Config
Extracted
oski
103.114.107.28/l17/
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 4424 set thread context of 4348 4424 powershell.exe aspnet_compiler.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4548 4348 WerFault.exe aspnet_compiler.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exepid process 4424 powershell.exe 4424 powershell.exe 4424 powershell.exe 4424 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 4424 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
powershell.exedescription pid process target process PID 4424 wrote to memory of 1156 4424 powershell.exe aspnet_compiler.exe PID 4424 wrote to memory of 1156 4424 powershell.exe aspnet_compiler.exe PID 4424 wrote to memory of 1156 4424 powershell.exe aspnet_compiler.exe PID 4424 wrote to memory of 4348 4424 powershell.exe aspnet_compiler.exe PID 4424 wrote to memory of 4348 4424 powershell.exe aspnet_compiler.exe PID 4424 wrote to memory of 4348 4424 powershell.exe aspnet_compiler.exe PID 4424 wrote to memory of 4348 4424 powershell.exe aspnet_compiler.exe PID 4424 wrote to memory of 4348 4424 powershell.exe aspnet_compiler.exe PID 4424 wrote to memory of 4348 4424 powershell.exe aspnet_compiler.exe PID 4424 wrote to memory of 4348 4424 powershell.exe aspnet_compiler.exe PID 4424 wrote to memory of 4348 4424 powershell.exe aspnet_compiler.exe PID 4424 wrote to memory of 4348 4424 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\56d68b21e189451019367c59f00ee597.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4424 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe#cmd2⤵PID:1156
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe#cmd2⤵PID:4348
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4348 -s 12123⤵
- Program crash
PID:4548
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4348 -ip 43481⤵PID:4636
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82