Analysis
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max time kernel
149s -
max time network
150s -
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 05:03
Static task
static1
Behavioral task
behavioral1
Sample
6da1d6a255fe2098408c3c889a4e157e.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
6da1d6a255fe2098408c3c889a4e157e.ps1
Resource
win10v2004-20231215-en
General
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Target
6da1d6a255fe2098408c3c889a4e157e.ps1
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Size
656KB
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MD5
6da1d6a255fe2098408c3c889a4e157e
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SHA1
125f6ce3f1ce6982d9caf761f2ba2a8959593878
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SHA256
b049e62984463f3760413281748176a3aba8966e912702088ce33a52db0a4fd7
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SHA512
1105f1545e7eff05264c353f9792bd5617bbdfffcfbf0ae29675f629e6d228f6c74a38ea0cfd3bd2f5d186e49a2c712d6600feb54d59a6c607a7a81f883ab2ec
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SSDEEP
12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64f8TVkc5A+:g3BTmr+
Malware Config
Extracted
oski
/103.114.107.28/l25/
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:
description pid process target process PID 2900 set thread context of 5100 2900 aspnet_compiler.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1548 5100 WerFault.exe aspnet_compiler.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 2900 powershell.exe 2900 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 2900 powershell.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
description pid process target process PID 2900 wrote to memory of 5100 2900 aspnet_compiler.exe PID 2900 wrote to memory of 5100 2900 aspnet_compiler.exe PID 2900 wrote to memory of 5100 2900 aspnet_compiler.exe PID 2900 wrote to memory of 5100 2900 aspnet_compiler.exe PID 2900 wrote to memory of 5100 2900 aspnet_compiler.exe PID 2900 wrote to memory of 5100 2900 aspnet_compiler.exe PID 2900 wrote to memory of 5100 2900 aspnet_compiler.exe PID 2900 wrote to memory of 5100 2900 aspnet_compiler.exe PID 2900 wrote to memory of 5100 2900 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\6da1d6a255fe2098408c3c889a4e157e.ps11⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2900 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe#cmd2⤵PID:5100
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 10643⤵
- Program crash
PID:1548
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5100 -ip 51001⤵PID:1636
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82