oski | 9bb9ebda548a1b5411f95a24e4f2b27705473e91033ae6cb158c19eb2cca5908

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
08-01-2024 21:29

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General

Target

4c8015bbc773e46fdbd2ed3785d7bb57.ps1
Size

493KB
MD5

4c8015bbc773e46fdbd2ed3785d7bb57
SHA1

64df0b0921bd0c9eb7189c17fe1a7111c34de176
SHA256

9bb9ebda548a1b5411f95a24e4f2b27705473e91033ae6cb158c19eb2cca5908
SHA512

824b2ee4d088340be9a0f589b50bf2ba08540000c99db380bfe9d1a849eb5f01e16f0e650bbadb45d4d89fce6fb2408a597cc6eeae1147ebda353b0305706a7c
SSDEEP

12288:FMBZjw0RJ9u5ILYDxD3fxYehza/tw64Pj:FMn3u

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

103.99.1.60/b11k/

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2528 set thread context of 2852	2528	powershell.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1420	2852	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2528	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2852	2528	powershell.exe	29
PID 2528 wrote to memory of 2852	2528	powershell.exe	29
PID 2528 wrote to memory of 2852	2528	powershell.exe	29
PID 2528 wrote to memory of 2852	2528	powershell.exe	29
PID 2528 wrote to memory of 2852	2528	powershell.exe	29
PID 2528 wrote to memory of 2852	2528	powershell.exe	29
PID 2528 wrote to memory of 2852	2528	powershell.exe	29
PID 2528 wrote to memory of 2852	2528	powershell.exe	29
PID 2528 wrote to memory of 2852	2528	powershell.exe	29
PID 2528 wrote to memory of 2852	2528	powershell.exe	29
PID 2852 wrote to memory of 1420	2852	aspnet_compiler.exe	30
PID 2852 wrote to memory of 1420	2852	aspnet_compiler.exe	30
PID 2852 wrote to memory of 1420	2852	aspnet_compiler.exe	30
PID 2852 wrote to memory of 1420	2852	aspnet_compiler.exe	30

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\4c8015bbc773e46fdbd2ed3785d7bb57.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #Powershell
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2852
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2852 -s 112
    3⤵
    - Program crash
    PID:1420

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2528-23-0x000007FEF5800000-0x000007FEF619D000-memory.dmp

Filesize
9.6MB

Download
memory/2528-5-0x0000000002460000-0x0000000002468000-memory.dmp

Filesize
32KB

Download
memory/2528-7-0x0000000002870000-0x00000000028F0000-memory.dmp

Filesize
512KB

Download
memory/2528-6-0x000007FEF5800000-0x000007FEF619D000-memory.dmp

Filesize
9.6MB

Download
memory/2528-8-0x000007FEF5800000-0x000007FEF619D000-memory.dmp

Filesize
9.6MB

Download
memory/2528-10-0x0000000002870000-0x00000000028F0000-memory.dmp

Filesize
512KB

Download
memory/2528-9-0x0000000002870000-0x00000000028F0000-memory.dmp

Filesize
512KB

Download
memory/2528-11-0x000000001B190000-0x000000001B1A2000-memory.dmp

Filesize
72KB

Download
memory/2528-4-0x000000001B230000-0x000000001B512000-memory.dmp

Filesize
2.9MB

Download
memory/2852-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2852-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2852-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2852-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2852-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2852-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2852-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download