oski | 2476e53d066a717d8627e08d13e7d2983e6ba9ecd76a8c3968273845f7996bde

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 08:21

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General

Target

134a8e6481ac306a18cf1b20baaf8289.ps1
Size

421KB
MD5

134a8e6481ac306a18cf1b20baaf8289
SHA1

5653dd3516e2d4dec7b3c711ebe0e1ada51dc930
SHA256

2476e53d066a717d8627e08d13e7d2983e6ba9ecd76a8c3968273845f7996bde
SHA512

4ad91e37428da130a6d0766e66f590550088d6757ac7e13266b1c38fbc1e5b1f4ba8e1225db26af98cb119ccdeb56c882291ab628eb6560ebce8f62ed66bc5bf
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64BL68:q3W

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l32/

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 2288 set thread context of 2960	2288	powershell.exe	30

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2940	2960	WerFault.exe	30

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2288	powershell.exe
2288	powershell.exe
2288	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2288	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 2412	2288	powershell.exe	29
PID 2288 wrote to memory of 2412	2288	powershell.exe	29
PID 2288 wrote to memory of 2412	2288	powershell.exe	29
PID 2288 wrote to memory of 2412	2288	powershell.exe	29
PID 2288 wrote to memory of 2960	2288	powershell.exe	30
PID 2288 wrote to memory of 2960	2288	powershell.exe	30
PID 2288 wrote to memory of 2960	2288	powershell.exe	30
PID 2288 wrote to memory of 2960	2288	powershell.exe	30
PID 2288 wrote to memory of 2960	2288	powershell.exe	30
PID 2288 wrote to memory of 2960	2288	powershell.exe	30
PID 2288 wrote to memory of 2960	2288	powershell.exe	30
PID 2288 wrote to memory of 2960	2288	powershell.exe	30
PID 2288 wrote to memory of 2960	2288	powershell.exe	30
PID 2288 wrote to memory of 2960	2288	powershell.exe	30
PID 2960 wrote to memory of 2940	2960	MSBuild.exe	31
PID 2960 wrote to memory of 2940	2960	MSBuild.exe	31
PID 2960 wrote to memory of 2940	2960	MSBuild.exe	31
PID 2960 wrote to memory of 2940	2960	MSBuild.exe	31

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\134a8e6481ac306a18cf1b20baaf8289.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  PID:2412
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2960
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2960 -s 504
    3⤵
    - Program crash
    PID:2940

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2288-4-0x000000001B3A0000-0x000000001B682000-memory.dmp

Filesize
2.9MB

Download
memory/2288-5-0x00000000027B0000-0x00000000027B8000-memory.dmp

Filesize
32KB

Download
memory/2288-6-0x000007FEF5E00000-0x000007FEF679D000-memory.dmp

Filesize
9.6MB

Download
memory/2288-7-0x00000000025F0000-0x0000000002670000-memory.dmp

Filesize
512KB

Download
memory/2288-8-0x00000000025F0000-0x0000000002670000-memory.dmp

Filesize
512KB

Download
memory/2288-9-0x000007FEF5E00000-0x000007FEF679D000-memory.dmp

Filesize
9.6MB

Download
memory/2288-10-0x000000001B310000-0x000000001B31A000-memory.dmp

Filesize
40KB

Download
memory/2288-25-0x000007FEF5E00000-0x000007FEF679D000-memory.dmp

Filesize
9.6MB

Download
memory/2960-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2960-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download