oski | 9c91870abd6826a55a3091588a4dd1a06f76517ff5a59905a1247a169ba33581

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22-12-2023 01:02

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General

Target

3f612a7d13131add2c7480a8f4afc2e2.ps1
Size

421KB
MD5

3f612a7d13131add2c7480a8f4afc2e2
SHA1

002ef70c9716875d10ae15d571172ef55b9a9058
SHA256

9c91870abd6826a55a3091588a4dd1a06f76517ff5a59905a1247a169ba33581
SHA512

1abfbab969598f722e900aa19b9fd6f95b21cfb07110aa978a08dbcf0d639dea1b630e2673cb1e7abeda1c3db0f1f6f0ad60eefd2f513a064e1be1a682d19905
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64EL68:q3v

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l2121/

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 2304 set thread context of 2660	2304	powershell.exe	30

Program crash 1 IoCs

pid	pid_target	Process
2744	2660	WerFault.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2304	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2304	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2660	2304	powershell.exe	30
PID 2304 wrote to memory of 2660	2304	powershell.exe	30
PID 2304 wrote to memory of 2660	2304	powershell.exe	30
PID 2304 wrote to memory of 2660	2304	powershell.exe	30
PID 2304 wrote to memory of 2660	2304	powershell.exe	30
PID 2304 wrote to memory of 2660	2304	powershell.exe	30
PID 2304 wrote to memory of 2660	2304	powershell.exe	30
PID 2304 wrote to memory of 2660	2304	powershell.exe	30
PID 2304 wrote to memory of 2660	2304	powershell.exe	30
PID 2304 wrote to memory of 2660	2304	powershell.exe	30
PID 2660 wrote to memory of 2744	2660	MSBuild.exe	29
PID 2660 wrote to memory of 2744	2660	MSBuild.exe	29
PID 2660 wrote to memory of 2744	2660	MSBuild.exe	29
PID 2660 wrote to memory of 2744	2660	MSBuild.exe	29

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\3f612a7d13131add2c7480a8f4afc2e2.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2660 -s 112
1⤵
- Program crash
PID:2744

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2304-24-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

Filesize
9.6MB

Download
memory/2304-5-0x0000000002860000-0x0000000002868000-memory.dmp

Filesize
32KB

Download
memory/2304-6-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

Filesize
9.6MB

Download
memory/2304-7-0x0000000002B90000-0x0000000002C10000-memory.dmp

Filesize
512KB

Download
memory/2304-8-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

Filesize
9.6MB

Download
memory/2304-9-0x0000000002B90000-0x0000000002C10000-memory.dmp

Filesize
512KB

Download
memory/2304-10-0x0000000002B90000-0x0000000002C10000-memory.dmp

Filesize
512KB

Download
memory/2304-11-0x0000000002A60000-0x0000000002A6A000-memory.dmp

Filesize
40KB

Download
memory/2304-4-0x000000001B7D0000-0x000000001BAB2000-memory.dmp

Filesize
2.9MB

Download
memory/2660-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2660-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2660-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2660-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2660-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2660-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2660-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2660-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download