Analysis
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max time kernel
147s -
max time network
151s -
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 04:35
Static task
static1
Behavioral task
behavioral1
Sample
653a032aee2b9a31a8610954e5c28402.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
653a032aee2b9a31a8610954e5c28402.ps1
Resource
win10v2004-20231215-en
General
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Target
653a032aee2b9a31a8610954e5c28402.ps1
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Size
656KB
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MD5
653a032aee2b9a31a8610954e5c28402
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SHA1
ac62e4c4a9387314d4a20897ece31c163983bb46
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SHA256
2d759eacd3f7849f5c1bab822e4355dcc3ed418cf0640b180f0f74379f4f627b
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SHA512
a7e2e8eb87c86e06419a5e7b3ac3b251a238c7c37eecdeec4af8870afe084d777ca4941027567dfae3d98e5d093a4cbcb8ad9fb5d7595f9fefc7461ec3d9b771
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SSDEEP
12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64M8TVkc5A+:g3ATmr+
Malware Config
Extracted
oski
/103.114.107.28/l2626/
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 1520 set thread context of 644 1520 powershell.exe aspnet_compiler.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1724 644 WerFault.exe aspnet_compiler.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 1520 powershell.exe 1520 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 1520 powershell.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
powershell.exedescription pid process target process PID 1520 wrote to memory of 644 1520 powershell.exe aspnet_compiler.exe PID 1520 wrote to memory of 644 1520 powershell.exe aspnet_compiler.exe PID 1520 wrote to memory of 644 1520 powershell.exe aspnet_compiler.exe PID 1520 wrote to memory of 644 1520 powershell.exe aspnet_compiler.exe PID 1520 wrote to memory of 644 1520 powershell.exe aspnet_compiler.exe PID 1520 wrote to memory of 644 1520 powershell.exe aspnet_compiler.exe PID 1520 wrote to memory of 644 1520 powershell.exe aspnet_compiler.exe PID 1520 wrote to memory of 644 1520 powershell.exe aspnet_compiler.exe PID 1520 wrote to memory of 644 1520 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\653a032aee2b9a31a8610954e5c28402.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1520 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe#cmd2⤵PID:644
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 644 -s 11003⤵
- Program crash
PID:1724
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 644 -ip 6441⤵PID:3292
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82