oski | 49a76b831f7668c5f30a783db5b2ad43e03fdb5f99295c41adb17afc4512c311

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
28-12-2023 18:41

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General

Target

ef94e89b98b1ddc2f7b02be201d5161f.ps1
Size

493KB
MD5

ef94e89b98b1ddc2f7b02be201d5161f
SHA1

e2a7d0e9e798681d07d248064fbcbf4b5ef905b5
SHA256

49a76b831f7668c5f30a783db5b2ad43e03fdb5f99295c41adb17afc4512c311
SHA512

2cbc02496f450c2cddf5bfcb4a75dc1cb52ac079eab288f232eea3f0bf8ab49bd9f4e32c794711a3984a78e9f8e26421b35ddc99e7110c2b582b49b1c712b2c6
SSDEEP

12288:FMBZjw0RJ9u5ILYDxD3fxYehza/tw645j:FMn3A

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

103.99.1.60/b14n/

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 2784 set thread context of 2288	2784	powershell.exe	30

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2784	powershell.exe
2784	powershell.exe
2784	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2784	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 2152	2784	powershell.exe	29
PID 2784 wrote to memory of 2152	2784	powershell.exe	29
PID 2784 wrote to memory of 2152	2784	powershell.exe	29
PID 2784 wrote to memory of 2152	2784	powershell.exe	29
PID 2784 wrote to memory of 2288	2784	powershell.exe	30
PID 2784 wrote to memory of 2288	2784	powershell.exe	30
PID 2784 wrote to memory of 2288	2784	powershell.exe	30
PID 2784 wrote to memory of 2288	2784	powershell.exe	30
PID 2784 wrote to memory of 2288	2784	powershell.exe	30
PID 2784 wrote to memory of 2288	2784	powershell.exe	30
PID 2784 wrote to memory of 2288	2784	powershell.exe	30
PID 2784 wrote to memory of 2288	2784	powershell.exe	30
PID 2784 wrote to memory of 2288	2784	powershell.exe	30
PID 2784 wrote to memory of 2288	2784	powershell.exe	30

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\ef94e89b98b1ddc2f7b02be201d5161f.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #Powershell
  2⤵
  PID:2152
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #Powershell
  2⤵
  PID:2288

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2288-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2288-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2288-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2288-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2288-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2288-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2288-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2288-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2288-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2288-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2784-9-0x0000000002B20000-0x0000000002BA0000-memory.dmp

Filesize
512KB

Download
memory/2784-11-0x0000000002A60000-0x0000000002A72000-memory.dmp

Filesize
72KB

Download
memory/2784-5-0x000007FEF6200000-0x000007FEF6B9D000-memory.dmp

Filesize
9.6MB

Download
memory/2784-4-0x000000001B710000-0x000000001B9F2000-memory.dmp

Filesize
2.9MB

Download
memory/2784-22-0x000007FEF6200000-0x000007FEF6B9D000-memory.dmp

Filesize
9.6MB

Download
memory/2784-6-0x0000000002B20000-0x0000000002BA0000-memory.dmp

Filesize
512KB

Download
memory/2784-7-0x0000000002790000-0x0000000002798000-memory.dmp

Filesize
32KB

Download
memory/2784-8-0x000007FEF6200000-0x000007FEF6B9D000-memory.dmp

Filesize
9.6MB

Download
memory/2784-10-0x0000000002B20000-0x0000000002BA0000-memory.dmp

Filesize
512KB

Download