oski | f491801e1e4a8b38f28d939e337436a8650f5d849060854df452eb1b56053b17

Analysis

max time kernel
122s
max time network
136s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22-12-2023 03:53

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General

Target

5e955058a451a655fe87853ab9195363.ps1
Size

421KB
MD5

5e955058a451a655fe87853ab9195363
SHA1

2ead44f355efa2a71ee7b39e828a15bda8ce8a08
SHA256

f491801e1e4a8b38f28d939e337436a8650f5d849060854df452eb1b56053b17
SHA512

4999a0308fc4f446e281fe51bbd2b245bc890fbf13e514c9209d1db0d4988db4fff959da9290a38f50f4164391a5edf30e8fa3662b33b97684d82c9149524d79
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64dL68:q3e

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l808/

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 2284 set thread context of 2748	2284	powershell.exe	29

Program crash 1 IoCs

pid	pid_target	Process
2616	2748	WerFault.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2284	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2284	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2284 wrote to memory of 2748	2284	powershell.exe	29
PID 2284 wrote to memory of 2748	2284	powershell.exe	29
PID 2284 wrote to memory of 2748	2284	powershell.exe	29
PID 2284 wrote to memory of 2748	2284	powershell.exe	29
PID 2284 wrote to memory of 2748	2284	powershell.exe	29
PID 2284 wrote to memory of 2748	2284	powershell.exe	29
PID 2284 wrote to memory of 2748	2284	powershell.exe	29
PID 2284 wrote to memory of 2748	2284	powershell.exe	29
PID 2284 wrote to memory of 2748	2284	powershell.exe	29
PID 2284 wrote to memory of 2748	2284	powershell.exe	29
PID 2748 wrote to memory of 2616	2748	MSBuild.exe	28
PID 2748 wrote to memory of 2616	2748	MSBuild.exe	28
PID 2748 wrote to memory of 2616	2748	MSBuild.exe	28
PID 2748 wrote to memory of 2616	2748	MSBuild.exe	28

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\5e955058a451a655fe87853ab9195363.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2284
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 496
1⤵
- Program crash
PID:2616

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2284-21-0x000007FEF5D60000-0x000007FEF66FD000-memory.dmp

Filesize
9.6MB

Download
memory/2284-5-0x00000000024E0000-0x00000000024E8000-memory.dmp

Filesize
32KB

Download
memory/2284-4-0x000000001B240000-0x000000001B522000-memory.dmp

Filesize
2.9MB

Download
memory/2284-7-0x0000000002820000-0x00000000028A0000-memory.dmp

Filesize
512KB

Download
memory/2284-8-0x000007FEF5D60000-0x000007FEF66FD000-memory.dmp

Filesize
9.6MB

Download
memory/2284-9-0x0000000002820000-0x00000000028A0000-memory.dmp

Filesize
512KB

Download
memory/2284-10-0x0000000002820000-0x00000000028A0000-memory.dmp

Filesize
512KB

Download
memory/2284-11-0x0000000002800000-0x000000000280A000-memory.dmp

Filesize
40KB

Download
memory/2284-6-0x000007FEF5D60000-0x000007FEF66FD000-memory.dmp

Filesize
9.6MB

Download
memory/2748-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2748-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download