Analysis
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max time kernel
193s -
max time network
233s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
10-01-2024 01:43
Static task
static1
Behavioral task
behavioral1
Sample
4c8015bbc773e46fdbd2ed3785d7bb57.ps1
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
4c8015bbc773e46fdbd2ed3785d7bb57.ps1
Resource
win10v2004-20231215-en
General
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Target
4c8015bbc773e46fdbd2ed3785d7bb57.ps1
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Size
493KB
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MD5
4c8015bbc773e46fdbd2ed3785d7bb57
-
SHA1
64df0b0921bd0c9eb7189c17fe1a7111c34de176
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SHA256
9bb9ebda548a1b5411f95a24e4f2b27705473e91033ae6cb158c19eb2cca5908
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SHA512
824b2ee4d088340be9a0f589b50bf2ba08540000c99db380bfe9d1a849eb5f01e16f0e650bbadb45d4d89fce6fb2408a597cc6eeae1147ebda353b0305706a7c
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SSDEEP
12288:FMBZjw0RJ9u5ILYDxD3fxYehza/tw64Pj:FMn3u
Malware Config
Extracted
oski
103.99.1.60/b11k/
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 2564 set thread context of 1744 2564 powershell.exe aspnet_compiler.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
powershell.exepid process 2564 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 2564 powershell.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
powershell.exedescription pid process target process PID 2564 wrote to memory of 1744 2564 powershell.exe aspnet_compiler.exe PID 2564 wrote to memory of 1744 2564 powershell.exe aspnet_compiler.exe PID 2564 wrote to memory of 1744 2564 powershell.exe aspnet_compiler.exe PID 2564 wrote to memory of 1744 2564 powershell.exe aspnet_compiler.exe PID 2564 wrote to memory of 1744 2564 powershell.exe aspnet_compiler.exe PID 2564 wrote to memory of 1744 2564 powershell.exe aspnet_compiler.exe PID 2564 wrote to memory of 1744 2564 powershell.exe aspnet_compiler.exe PID 2564 wrote to memory of 1744 2564 powershell.exe aspnet_compiler.exe PID 2564 wrote to memory of 1744 2564 powershell.exe aspnet_compiler.exe PID 2564 wrote to memory of 1744 2564 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\4c8015bbc773e46fdbd2ed3785d7bb57.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⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1744-23-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1744-35-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1744-34-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1744-32-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1744-30-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1744-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/1744-19-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1744-21-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1744-27-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1744-25-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2564-10-0x0000000001EE0000-0x0000000001EE8000-memory.dmpFilesize
32KB
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memory/2564-11-0x0000000002860000-0x00000000028E0000-memory.dmpFilesize
512KB
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memory/2564-17-0x0000000002860000-0x00000000028E0000-memory.dmpFilesize
512KB
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memory/2564-18-0x000007FEF5490000-0x000007FEF5E2D000-memory.dmpFilesize
9.6MB
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memory/2564-15-0x0000000002860000-0x00000000028E0000-memory.dmpFilesize
512KB
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memory/2564-14-0x000007FEF5490000-0x000007FEF5E2D000-memory.dmpFilesize
9.6MB
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memory/2564-13-0x0000000002780000-0x0000000002792000-memory.dmpFilesize
72KB
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memory/2564-16-0x0000000002860000-0x00000000028E0000-memory.dmpFilesize
512KB
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memory/2564-4-0x000000001B250000-0x000000001B532000-memory.dmpFilesize
2.9MB
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memory/2564-9-0x000007FEF5490000-0x000007FEF5E2D000-memory.dmpFilesize
9.6MB
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memory/2564-8-0x0000000002860000-0x00000000028E0000-memory.dmpFilesize
512KB
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memory/2564-33-0x000007FEF5490000-0x000007FEF5E2D000-memory.dmpFilesize
9.6MB
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memory/2564-7-0x0000000002860000-0x00000000028E0000-memory.dmpFilesize
512KB
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memory/2564-6-0x0000000002860000-0x00000000028E0000-memory.dmpFilesize
512KB
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memory/2564-5-0x000007FEF5490000-0x000007FEF5E2D000-memory.dmpFilesize
9.6MB