oski | 49a76b831f7668c5f30a783db5b2ad43e03fdb5f99295c41adb17afc4512c311

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
14-04-2024 21:47

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General

Target

ef94e89b98b1ddc2f7b02be201d5161f_JaffaCakes118.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

Processes:

powershell.exe

description pid process target process

PID 2176 set thread context of 2012 2176 powershell.exe aspnet_compiler.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2648 2012 WerFault.exe aspnet_compiler.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

2176 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2176 powershell.exe

description	pid	process	target process
PID 2176 set thread context of 2012	2176	powershell.exe	aspnet_compiler.exe

pid	pid_target	process	target process
2648	2012	WerFault.exe	aspnet_compiler.exe

pid	process
2176	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2176	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

powershell.exeaspnet_compiler.exe

description	pid	process	target process
PID 2176 wrote to memory of 2012	2176	powershell.exe	aspnet_compiler.exe
PID 2176 wrote to memory of 2012	2176	powershell.exe	aspnet_compiler.exe
PID 2176 wrote to memory of 2012	2176	powershell.exe	aspnet_compiler.exe
PID 2176 wrote to memory of 2012	2176	powershell.exe	aspnet_compiler.exe
PID 2176 wrote to memory of 2012	2176	powershell.exe	aspnet_compiler.exe
PID 2176 wrote to memory of 2012	2176	powershell.exe	aspnet_compiler.exe
PID 2176 wrote to memory of 2012	2176	powershell.exe	aspnet_compiler.exe
PID 2176 wrote to memory of 2012	2176	powershell.exe	aspnet_compiler.exe
PID 2176 wrote to memory of 2012	2176	powershell.exe	aspnet_compiler.exe
PID 2176 wrote to memory of 2012	2176	powershell.exe	aspnet_compiler.exe
PID 2012 wrote to memory of 2648	2012	aspnet_compiler.exe	WerFault.exe
PID 2012 wrote to memory of 2648	2012	aspnet_compiler.exe	WerFault.exe
PID 2012 wrote to memory of 2648	2012	aspnet_compiler.exe	WerFault.exe
PID 2012 wrote to memory of 2648	2012	aspnet_compiler.exe	WerFault.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\ef94e89b98b1ddc2f7b02be201d5161f_JaffaCakes118.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2176

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
#Powershell
2⤵
- Suspicious use of WriteProcessMemory
PID:2012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2012 -s 112
3⤵
- Program crash
PID:2648

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2012-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2012-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2012-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2012-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2012-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2012-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2012-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2012-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2176-8-0x000007FEF5FB0000-0x000007FEF694D000-memory.dmp

Filesize
9.6MB

Download
memory/2176-12-0x0000000002A60000-0x0000000002A72000-memory.dmp

Filesize
72KB

Download
memory/2176-11-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2176-10-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2176-9-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2176-4-0x000000001B580000-0x000000001B862000-memory.dmp

Filesize
2.9MB

Download
memory/2176-5-0x000007FEF5FB0000-0x000007FEF694D000-memory.dmp

Filesize
9.6MB

Download
memory/2176-7-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2176-26-0x000007FEF5FB0000-0x000007FEF694D000-memory.dmp

Filesize
9.6MB

Download
memory/2176-6-0x0000000001E00000-0x0000000001E08000-memory.dmp

Filesize
32KB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads