oski | db7c19cc03486f9948a0d9bb304baea5017f937802c88bb8ad85c7493fb5aeeb

General

Target

b33604969a34f8a6d4678e154e049fd3.ps1
Size

656KB
MD5

b33604969a34f8a6d4678e154e049fd3
SHA1

f56bd427fbd88e2111208e07b0121ebb83fdabd7
SHA256

db7c19cc03486f9948a0d9bb304baea5017f937802c88bb8ad85c7493fb5aeeb
SHA512

3c06d348e37865da3a155868432afae2b922d07c88b6df7f5d75f8fadf3e97aa82c320507f5aee4faf71b7b4565a9293cbecd9712f09ce4ea891a8fa3a17bf76
SSDEEP

12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64d8TVkc5A+:g3/Tmr+

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

C2

/103.114.107.28/l27/

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 2776 set thread context of 3420	2776	powershell.exe	91

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3480	3420	WerFault.exe	91

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2776	powershell.exe
2776	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 3420	2776	powershell.exe	91
PID 2776 wrote to memory of 3420	2776	powershell.exe	91
PID 2776 wrote to memory of 3420	2776	powershell.exe	91
PID 2776 wrote to memory of 3420	2776	powershell.exe	91
PID 2776 wrote to memory of 3420	2776	powershell.exe	91
PID 2776 wrote to memory of 3420	2776	powershell.exe	91
PID 2776 wrote to memory of 3420	2776	powershell.exe	91
PID 2776 wrote to memory of 3420	2776	powershell.exe	91
PID 2776 wrote to memory of 3420	2776	powershell.exe	91

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\b33604969a34f8a6d4678e154e049fd3.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #cmd
  2⤵
  PID:3420
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3420 -s 1108
    3⤵
    - Program crash
    PID:3480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3420 -ip 3420
1⤵
PID:3872

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kdgzf4kf.1re.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2776-33-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-17-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-11-0x0000022BB7940000-0x0000022BB7950000-memory.dmp

Filesize
64KB

Download
memory/2776-35-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-13-0x0000022BB7980000-0x0000022BB79A6000-memory.dmp

Filesize
152KB

Download
memory/2776-14-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-15-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-37-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-19-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-21-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-23-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-25-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-27-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-39-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-31-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-6-0x0000022BB79B0000-0x0000022BB79D2000-memory.dmp

Filesize
136KB

Download
memory/2776-12-0x0000022BB7940000-0x0000022BB7950000-memory.dmp

Filesize
64KB

Download
memory/2776-10-0x00007FFA6FFF0000-0x00007FFA70AB1000-memory.dmp

Filesize
10.8MB

Download
memory/2776-29-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-41-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-43-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-45-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-47-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-49-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-51-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-53-0x0000022BB7980000-0x0000022BB79A0000-memory.dmp

Filesize
128KB

Download
memory/2776-54-0x0000022BB79A0000-0x0000022BB79A1000-memory.dmp

Filesize
4KB

Download
memory/2776-59-0x00007FFA6FFF0000-0x00007FFA70AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3420-55-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3420-58-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3420-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3420-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3420-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

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