oski | 34d8a8023bbc527ce506d2045bc74330d505af401f2040c19888d1e7821233d6

Analysis

max time kernel
119s
max time network
130s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22-12-2023 15:59

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General

Target

e3f7a436ab2d32d2567204e45bdc2b5a.ps1
Size

421KB
MD5

e3f7a436ab2d32d2567204e45bdc2b5a
SHA1

fbe8802c298e1778e73e51a9e2fcfb514ba8c349
SHA256

34d8a8023bbc527ce506d2045bc74330d505af401f2040c19888d1e7821233d6
SHA512

03f6a57f8f26fe43cc7f4e798f0f54b0348146268850ef12808415381c5b395db1a9817717933820e4649925c1df0e40c9921b4248ae734818762fc9d233980f
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64ML68:q3H

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l1414/

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 2132 set thread context of 2756	2132	powershell.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2832	2756	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2132	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2132	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 2756	2132	powershell.exe	29
PID 2132 wrote to memory of 2756	2132	powershell.exe	29
PID 2132 wrote to memory of 2756	2132	powershell.exe	29
PID 2132 wrote to memory of 2756	2132	powershell.exe	29
PID 2132 wrote to memory of 2756	2132	powershell.exe	29
PID 2132 wrote to memory of 2756	2132	powershell.exe	29
PID 2132 wrote to memory of 2756	2132	powershell.exe	29
PID 2132 wrote to memory of 2756	2132	powershell.exe	29
PID 2132 wrote to memory of 2756	2132	powershell.exe	29
PID 2132 wrote to memory of 2756	2132	powershell.exe	29
PID 2756 wrote to memory of 2832	2756	MSBuild.exe	30
PID 2756 wrote to memory of 2832	2756	MSBuild.exe	30
PID 2756 wrote to memory of 2832	2756	MSBuild.exe	30
PID 2756 wrote to memory of 2832	2756	MSBuild.exe	30

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\e3f7a436ab2d32d2567204e45bdc2b5a.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2756
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2756 -s 500
    3⤵
    - Program crash
    PID:2832

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2132-5-0x000007FEF53A0000-0x000007FEF5D3D000-memory.dmp

Filesize
9.6MB

Download
memory/2132-7-0x00000000023A0000-0x00000000023A8000-memory.dmp

Filesize
32KB

Download
memory/2132-6-0x00000000024F0000-0x0000000002570000-memory.dmp

Filesize
512KB

Download
memory/2132-10-0x00000000024F0000-0x0000000002570000-memory.dmp

Filesize
512KB

Download
memory/2132-11-0x00000000024F0000-0x0000000002570000-memory.dmp

Filesize
512KB

Download
memory/2132-9-0x00000000024F0000-0x0000000002570000-memory.dmp

Filesize
512KB

Download
memory/2132-8-0x000007FEF53A0000-0x000007FEF5D3D000-memory.dmp

Filesize
9.6MB

Download
memory/2132-4-0x000000001B3D0000-0x000000001B6B2000-memory.dmp

Filesize
2.9MB

Download
memory/2132-12-0x00000000029A0000-0x00000000029AA000-memory.dmp

Filesize
40KB

Download
memory/2132-22-0x000007FEF53A0000-0x000007FEF5D3D000-memory.dmp

Filesize
9.6MB

Download
memory/2756-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2756-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download