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
13-01-2024 09:09
Static task
static1
Behavioral task
behavioral1
Sample
588973c3e0c9775ff44f3ec831624cad.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
588973c3e0c9775ff44f3ec831624cad.ps1
Resource
win10v2004-20231215-en
General
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Target
588973c3e0c9775ff44f3ec831624cad.ps1
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Size
493KB
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MD5
588973c3e0c9775ff44f3ec831624cad
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SHA1
ac392d1ffaf4eb0c38e946d4dc47e9347278d8cc
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SHA256
e543def5c2daeca7cf754090cffd2985dd00a3e03630391d5e0155121a557af6
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SHA512
2ada87f87a2988152b96262ac2c2d7338ed6155c1d9b1af11e709b3685f5de4fb025d22d89a0880d7fde4830dabf315d5052da5ebdf97de08e6d22c929a2a391
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SSDEEP
12288:FMBZjw0RJ9u5ILYDxD3fxYehza/tw64Xj:FMn3+
Malware Config
Extracted
oski
103.99.1.60/b15o/
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 2176 set thread context of 4756 2176 powershell.exe aspnet_compiler.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3260 4756 WerFault.exe aspnet_compiler.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 2176 powershell.exe 2176 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 2176 powershell.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
powershell.exedescription pid process target process PID 2176 wrote to memory of 4756 2176 powershell.exe aspnet_compiler.exe PID 2176 wrote to memory of 4756 2176 powershell.exe aspnet_compiler.exe PID 2176 wrote to memory of 4756 2176 powershell.exe aspnet_compiler.exe PID 2176 wrote to memory of 4756 2176 powershell.exe aspnet_compiler.exe PID 2176 wrote to memory of 4756 2176 powershell.exe aspnet_compiler.exe PID 2176 wrote to memory of 4756 2176 powershell.exe aspnet_compiler.exe PID 2176 wrote to memory of 4756 2176 powershell.exe aspnet_compiler.exe PID 2176 wrote to memory of 4756 2176 powershell.exe aspnet_compiler.exe PID 2176 wrote to memory of 4756 2176 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\588973c3e0c9775ff44f3ec831624cad.ps11⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe#Powershell2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4756 -s 12163⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4756 -ip 47561⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nwa5urzq.fae.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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memory/2176-18-0x00007FFE26660000-0x00007FFE27121000-memory.dmpFilesize
10.8MB
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memory/2176-10-0x00007FFE26660000-0x00007FFE27121000-memory.dmpFilesize
10.8MB
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memory/2176-12-0x000001A8C80B0000-0x000001A8C80C0000-memory.dmpFilesize
64KB
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memory/2176-11-0x000001A8C80B0000-0x000001A8C80C0000-memory.dmpFilesize
64KB
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memory/2176-13-0x000001A8C8010000-0x000001A8C8022000-memory.dmpFilesize
72KB
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memory/2176-9-0x000001A8C8020000-0x000001A8C8042000-memory.dmpFilesize
136KB
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memory/4756-20-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4756-19-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4756-17-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4756-14-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4756-21-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4756-24-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB