oski | 5b05beb197cf3fee0b18e3a5b3c12dca915553d40f7cbcffe5f32b9eda96f419

Analysis

max time kernel
112s
max time network
180s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2023 10:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

8468472ca107f2a4e267438baeaf38b4.ps1
Size

421KB
MD5

8468472ca107f2a4e267438baeaf38b4
SHA1

ef25dc88a34dbae0ee632261686082180422a01c
SHA256

5b05beb197cf3fee0b18e3a5b3c12dca915553d40f7cbcffe5f32b9eda96f419
SHA512

2090900bc8c53b2269d0c738abb8c162e59fee4b3e2eeb6ace516c93bb09681ef949d8f8c230546dcb08ad890ab7704f28909bac3817d8f7807109019efadd4b
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64kL68:q3v

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l1212/

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 4712 set thread context of 4488	4712	powershell.exe	92

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4464	4488	WerFault.exe	92

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4712	powershell.exe
4712	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4712	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 4488	4712	powershell.exe	92
PID 4712 wrote to memory of 4488	4712	powershell.exe	92
PID 4712 wrote to memory of 4488	4712	powershell.exe	92
PID 4712 wrote to memory of 4488	4712	powershell.exe	92
PID 4712 wrote to memory of 4488	4712	powershell.exe	92
PID 4712 wrote to memory of 4488	4712	powershell.exe	92
PID 4712 wrote to memory of 4488	4712	powershell.exe	92
PID 4712 wrote to memory of 4488	4712	powershell.exe	92
PID 4712 wrote to memory of 4488	4712	powershell.exe	92

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\8468472ca107f2a4e267438baeaf38b4.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4712
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:4488
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4488 -s 1076
    3⤵
    - Program crash
    PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4488 -ip 4488
1⤵
PID:2032

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ynbbg0nq.msu.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4488-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4488-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4488-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4488-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4488-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4712-14-0x000002641EB90000-0x000002641EB9A000-memory.dmp

Filesize
40KB

Download
memory/4712-13-0x000002641D1E0000-0x000002641D1F0000-memory.dmp

Filesize
64KB

Download
memory/4712-12-0x000002641D1E0000-0x000002641D1F0000-memory.dmp

Filesize
64KB

Download
memory/4712-19-0x00007FFD4B1D0000-0x00007FFD4BC91000-memory.dmp

Filesize
10.8MB

Download
memory/4712-11-0x000002641D1E0000-0x000002641D1F0000-memory.dmp

Filesize
64KB

Download
memory/4712-10-0x00007FFD4B1D0000-0x00007FFD4BC91000-memory.dmp

Filesize
10.8MB

Download
memory/4712-9-0x000002641EB60000-0x000002641EB82000-memory.dmp

Filesize
136KB

Download