oski | c66d5ae5f1cc7e8a8c0047e51ce2f5a94de960f63ea2107aaf60bebce75fb2bb

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22-12-2023 04:50

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General

Target

67b72b574b52873730e274250feef9ed.ps1
Size

421KB
MD5

67b72b574b52873730e274250feef9ed
SHA1

ef44d31846ad814cd2d7cf20ce071bdd2d4eac41
SHA256

c66d5ae5f1cc7e8a8c0047e51ce2f5a94de960f63ea2107aaf60bebce75fb2bb
SHA512

67babcc41723ef944a90463ba65fc20ec1cac472f98b5c84942dfa58af004097333d762a9147fa6fd7956fec9febf60fb3e916c73ceba83e50c5a4d187f45617
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64eL68:q3N

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

103.114.107.28/l3/

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 2404 set thread context of 2892	2404	powershell.exe	30

Program crash 1 IoCs

pid	pid_target	Process
2772	2892	WerFault.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2404	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2404	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2892	2404	powershell.exe	30
PID 2404 wrote to memory of 2892	2404	powershell.exe	30
PID 2404 wrote to memory of 2892	2404	powershell.exe	30
PID 2404 wrote to memory of 2892	2404	powershell.exe	30
PID 2404 wrote to memory of 2892	2404	powershell.exe	30
PID 2404 wrote to memory of 2892	2404	powershell.exe	30
PID 2404 wrote to memory of 2892	2404	powershell.exe	30
PID 2404 wrote to memory of 2892	2404	powershell.exe	30
PID 2404 wrote to memory of 2892	2404	powershell.exe	30
PID 2404 wrote to memory of 2892	2404	powershell.exe	30
PID 2892 wrote to memory of 2772	2892	MSBuild.exe	29
PID 2892 wrote to memory of 2772	2892	MSBuild.exe	29
PID 2892 wrote to memory of 2772	2892	MSBuild.exe	29
PID 2892 wrote to memory of 2772	2892	MSBuild.exe	29

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\67b72b574b52873730e274250feef9ed.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 112
1⤵
- Program crash
PID:2772

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2404-12-0x0000000002770000-0x000000000277A000-memory.dmp

Filesize
40KB

Download
memory/2404-6-0x0000000001F70000-0x0000000001FF0000-memory.dmp

Filesize
512KB

Download
memory/2404-4-0x000000001B260000-0x000000001B542000-memory.dmp

Filesize
2.9MB

Download
memory/2404-23-0x000007FEF5830000-0x000007FEF61CD000-memory.dmp

Filesize
9.6MB

Download
memory/2404-9-0x0000000001F70000-0x0000000001FF0000-memory.dmp

Filesize
512KB

Download
memory/2404-10-0x0000000001F70000-0x0000000001FF0000-memory.dmp

Filesize
512KB

Download
memory/2404-7-0x0000000001F40000-0x0000000001F48000-memory.dmp

Filesize
32KB

Download
memory/2404-11-0x0000000001F70000-0x0000000001FF0000-memory.dmp

Filesize
512KB

Download
memory/2404-8-0x000007FEF5830000-0x000007FEF61CD000-memory.dmp

Filesize
9.6MB

Download
memory/2404-5-0x000007FEF5830000-0x000007FEF61CD000-memory.dmp

Filesize
9.6MB

Download
memory/2892-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2892-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2892-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2892-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2892-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2892-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2892-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2892-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download