Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
21-12-2023 20:46
Static task
static1
Behavioral task
behavioral1
Sample
05eaa46461a00795419425d575ccee0a.ps1
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
05eaa46461a00795419425d575ccee0a.ps1
Resource
win10v2004-20231215-en
General
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Target
05eaa46461a00795419425d575ccee0a.ps1
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Size
656KB
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MD5
05eaa46461a00795419425d575ccee0a
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SHA1
92e497d10544823e592d33dca38092064b242c20
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SHA256
ba3283365384e502f10612a39c50d72258b19c9e08818e75430a24dcd32691c4
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SHA512
e5076b5642282cb6d4528388447edca90f3ba67dd4f9b85085e890b0a9609a3a2bd001e8f27658481d90be0aecd0cec1a0cece81c98a92f627686e8596dce366
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SSDEEP
12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64k8TVkc5A+:g3ITmr+
Malware Config
Extracted
oski
/103.114.107.28/l1212/
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 1208 set thread context of 2652 1208 powershell.exe aspnet_compiler.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3804 2652 WerFault.exe aspnet_compiler.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 1208 powershell.exe 1208 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 1208 powershell.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
powershell.exedescription pid process target process PID 1208 wrote to memory of 2652 1208 powershell.exe aspnet_compiler.exe PID 1208 wrote to memory of 2652 1208 powershell.exe aspnet_compiler.exe PID 1208 wrote to memory of 2652 1208 powershell.exe aspnet_compiler.exe PID 1208 wrote to memory of 2652 1208 powershell.exe aspnet_compiler.exe PID 1208 wrote to memory of 2652 1208 powershell.exe aspnet_compiler.exe PID 1208 wrote to memory of 2652 1208 powershell.exe aspnet_compiler.exe PID 1208 wrote to memory of 2652 1208 powershell.exe aspnet_compiler.exe PID 1208 wrote to memory of 2652 1208 powershell.exe aspnet_compiler.exe PID 1208 wrote to memory of 2652 1208 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\05eaa46461a00795419425d575ccee0a.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1208 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe#cmd2⤵PID:2652
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2652 -s 11003⤵
- Program crash
PID:3804
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 2652 -ip 26521⤵PID:3780
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82