oski | 74ba11de6f8b9142125db80bdba421638a3d002ef77d7231e96081757920ebcc

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22-12-2023 04:28

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General

Target

63fccd4437a1fc5ec961bd80801aa027.ps1
Size

421KB
MD5

63fccd4437a1fc5ec961bd80801aa027
SHA1

2718a421713bab972ad9d3f3021942042bbbfb15
SHA256

74ba11de6f8b9142125db80bdba421638a3d002ef77d7231e96081757920ebcc
SHA512

93b0a1cd0212e5114caaf3a501c87f31c205e3c4e5782bf3672fcd479b3414739a64e499612530c63544e7f984665eb8abd0e59c92f8163eb4b63305961ea7a1
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64cL68:q3X

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l1919/

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 2908 set thread context of 2976	2908	powershell.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2848	2976	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2908	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2908	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 2976	2908	powershell.exe	29
PID 2908 wrote to memory of 2976	2908	powershell.exe	29
PID 2908 wrote to memory of 2976	2908	powershell.exe	29
PID 2908 wrote to memory of 2976	2908	powershell.exe	29
PID 2908 wrote to memory of 2976	2908	powershell.exe	29
PID 2908 wrote to memory of 2976	2908	powershell.exe	29
PID 2908 wrote to memory of 2976	2908	powershell.exe	29
PID 2908 wrote to memory of 2976	2908	powershell.exe	29
PID 2908 wrote to memory of 2976	2908	powershell.exe	29
PID 2908 wrote to memory of 2976	2908	powershell.exe	29
PID 2976 wrote to memory of 2848	2976	MSBuild.exe	30
PID 2976 wrote to memory of 2848	2976	MSBuild.exe	30
PID 2976 wrote to memory of 2848	2976	MSBuild.exe	30
PID 2976 wrote to memory of 2848	2976	MSBuild.exe	30

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\63fccd4437a1fc5ec961bd80801aa027.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2976
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2976 -s 500
    3⤵
    - Program crash
    PID:2848

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2908-26-0x000007FEF5360000-0x000007FEF5CFD000-memory.dmp

Filesize
9.6MB

Download
memory/2908-11-0x00000000028C0000-0x0000000002940000-memory.dmp

Filesize
512KB

Download
memory/2908-6-0x0000000001D70000-0x0000000001D78000-memory.dmp

Filesize
32KB

Download
memory/2908-7-0x00000000028C0000-0x0000000002940000-memory.dmp

Filesize
512KB

Download
memory/2908-8-0x000007FEF5360000-0x000007FEF5CFD000-memory.dmp

Filesize
9.6MB

Download
memory/2908-9-0x00000000028C0000-0x0000000002940000-memory.dmp

Filesize
512KB

Download
memory/2908-10-0x00000000028C0000-0x0000000002940000-memory.dmp

Filesize
512KB

Download
memory/2908-12-0x0000000002860000-0x000000000286A000-memory.dmp

Filesize
40KB

Download
memory/2908-4-0x000000001B360000-0x000000001B642000-memory.dmp

Filesize
2.9MB

Download
memory/2908-5-0x000007FEF5360000-0x000007FEF5CFD000-memory.dmp

Filesize
9.6MB

Download
memory/2976-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2976-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2976-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2976-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2976-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2976-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2976-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2976-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2976-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2976-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download