oski | 3975ff5fd7f0c5e82b1f932ce5c5fd1d66627dac6043701fe26cbf36035f91bb

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
22-12-2023 14:29

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General

Target

c3e00cc05db28caecab4318f65f9a7c2.ps1
Size

421KB
MD5

c3e00cc05db28caecab4318f65f9a7c2
SHA1

fd468321e743de0aab68ae03bdc214b3442d5195
SHA256

3975ff5fd7f0c5e82b1f932ce5c5fd1d66627dac6043701fe26cbf36035f91bb
SHA512

67ffd50620c1d33ad3dc450095fd6a5606251efec9661b180ad97e21b789df3130dbe3b5589e5b061ff0c03cb52bc2e225364c6f80d8d1272ebdd597313da10a
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64NL68:q36

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l36/

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 2360 set thread context of 2168	2360	powershell.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2904	2168	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2360	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2168	2360	powershell.exe	29
PID 2360 wrote to memory of 2168	2360	powershell.exe	29
PID 2360 wrote to memory of 2168	2360	powershell.exe	29
PID 2360 wrote to memory of 2168	2360	powershell.exe	29
PID 2360 wrote to memory of 2168	2360	powershell.exe	29
PID 2360 wrote to memory of 2168	2360	powershell.exe	29
PID 2360 wrote to memory of 2168	2360	powershell.exe	29
PID 2360 wrote to memory of 2168	2360	powershell.exe	29
PID 2360 wrote to memory of 2168	2360	powershell.exe	29
PID 2360 wrote to memory of 2168	2360	powershell.exe	29
PID 2168 wrote to memory of 2904	2168	MSBuild.exe	30
PID 2168 wrote to memory of 2904	2168	MSBuild.exe	30
PID 2168 wrote to memory of 2904	2168	MSBuild.exe	30
PID 2168 wrote to memory of 2904	2168	MSBuild.exe	30

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\c3e00cc05db28caecab4318f65f9a7c2.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2168
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2168 -s 504
    3⤵
    - Program crash
    PID:2904

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2168-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2168-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2168-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2168-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2168-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2168-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2168-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2168-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2168-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2168-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2360-4-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download
memory/2360-11-0x0000000002840000-0x00000000028C0000-memory.dmp

Filesize
512KB

Download
memory/2360-10-0x0000000002840000-0x00000000028C0000-memory.dmp

Filesize
512KB

Download
memory/2360-6-0x0000000002840000-0x00000000028C0000-memory.dmp

Filesize
512KB

Download
memory/2360-9-0x0000000002840000-0x00000000028C0000-memory.dmp

Filesize
512KB

Download
memory/2360-5-0x000007FEF5940000-0x000007FEF62DD000-memory.dmp

Filesize
9.6MB

Download
memory/2360-8-0x000007FEF5940000-0x000007FEF62DD000-memory.dmp

Filesize
9.6MB

Download
memory/2360-24-0x000007FEF5940000-0x000007FEF62DD000-memory.dmp

Filesize
9.6MB

Download
memory/2360-12-0x00000000029F0000-0x00000000029FA000-memory.dmp

Filesize
40KB

Download
memory/2360-7-0x0000000002790000-0x0000000002798000-memory.dmp

Filesize
32KB

Download