oski | 181a988534aeb9dcec48736c09e7e54373f63f178474af3f973ec21f54f32095

Analysis

max time kernel
91s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
21-12-2023 23:12

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General

Target

219233774e3dcd6769eb7867ad3ba169.ps1
Size

421KB
MD5

219233774e3dcd6769eb7867ad3ba169
SHA1

fe90764e5d79c331f8a8af20e6bd3da5b2674ac2
SHA256

181a988534aeb9dcec48736c09e7e54373f63f178474af3f973ec21f54f32095
SHA512

f94e1d61b52b8fc2f863bdfc2fa8bd71f9db3cfbccd4c70fec3acdba912816898c1ab4d106910cff7034dbd8e88fbef00d4c23ee187218a407a57fbb2788818c
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64EL68:q3f

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l3131/

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 656 set thread context of 2384	656	powershell.exe	92

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4912	2384	WerFault.exe	92

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
656	powershell.exe
656	powershell.exe
656	powershell.exe
656	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	656	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 656 wrote to memory of 4284	656	powershell.exe	90
PID 656 wrote to memory of 4284	656	powershell.exe	90
PID 656 wrote to memory of 4284	656	powershell.exe	90
PID 656 wrote to memory of 2384	656	powershell.exe	92
PID 656 wrote to memory of 2384	656	powershell.exe	92
PID 656 wrote to memory of 2384	656	powershell.exe	92
PID 656 wrote to memory of 2384	656	powershell.exe	92
PID 656 wrote to memory of 2384	656	powershell.exe	92
PID 656 wrote to memory of 2384	656	powershell.exe	92
PID 656 wrote to memory of 2384	656	powershell.exe	92
PID 656 wrote to memory of 2384	656	powershell.exe	92
PID 656 wrote to memory of 2384	656	powershell.exe	92

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\219233774e3dcd6769eb7867ad3ba169.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:656
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:4284
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:2384
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 1056
    3⤵
    - Program crash
    PID:4912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2384 -ip 2384
1⤵
PID:2612

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_11gwvz2l.cky.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/656-14-0x000001FF7B9D0000-0x000001FF7B9DA000-memory.dmp

Filesize
40KB

Download
memory/656-10-0x00007FF9F9440000-0x00007FF9F9F01000-memory.dmp

Filesize
10.8MB

Download
memory/656-11-0x000001FF79850000-0x000001FF79860000-memory.dmp

Filesize
64KB

Download
memory/656-13-0x000001FF79850000-0x000001FF79860000-memory.dmp

Filesize
64KB

Download
memory/656-12-0x000001FF79850000-0x000001FF79860000-memory.dmp

Filesize
64KB

Download
memory/656-9-0x000001FF79820000-0x000001FF79842000-memory.dmp

Filesize
136KB

Download
memory/656-19-0x00007FF9F9440000-0x00007FF9F9F01000-memory.dmp

Filesize
10.8MB

Download
memory/2384-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2384-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2384-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2384-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2384-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download