oski | 9bb9ebda548a1b5411f95a24e4f2b27705473e91033ae6cb158c19eb2cca5908

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10/01/2024, 01:43

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General

Target
4c8015bbc773e46fdbd2ed3785d7bb57.ps1
Size 493KB
Sample240110-b5ezpacff2
SHA256 9bb9ebda548a1b5411f95a24e4f2b27705473e91033ae6cb158c19eb2cca5908
MD5 4c8015bbc773e46fdbd2ed3785d7bb57
SHA1 64df0b0921bd0c9eb7189c17fe1a7111c34de176
SHA512 824b2ee4d088340be9a0f589b50bf2ba08540000c99db380bfe9d1a849eb5f01e16f0e650bbadb45d4d89fce6fb2408a597cc6eeae1147ebda353b0305706a7c
SSDEEP 12288:FMBZjw0RJ9u5ILYDxD3fxYehza/tw64Pj:FMn3u
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

103.99.1.60/b11k/

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 4084 set thread context of 4540	4084	powershell.exe	94

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4084	powershell.exe
4084	powershell.exe
4084	powershell.exe
4084	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4084	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4084 wrote to memory of 4920	4084	powershell.exe	93
PID 4084 wrote to memory of 4920	4084	powershell.exe	93
PID 4084 wrote to memory of 4920	4084	powershell.exe	93
PID 4084 wrote to memory of 4540	4084	powershell.exe	94
PID 4084 wrote to memory of 4540	4084	powershell.exe	94
PID 4084 wrote to memory of 4540	4084	powershell.exe	94
PID 4084 wrote to memory of 4540	4084	powershell.exe	94
PID 4084 wrote to memory of 4540	4084	powershell.exe	94
PID 4084 wrote to memory of 4540	4084	powershell.exe	94
PID 4084 wrote to memory of 4540	4084	powershell.exe	94
PID 4084 wrote to memory of 4540	4084	powershell.exe	94
PID 4084 wrote to memory of 4540	4084	powershell.exe	94

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\4c8015bbc773e46fdbd2ed3785d7bb57.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4084
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #Powershell
  2⤵
  PID:4920
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #Powershell
  2⤵
  PID:4540

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

__PSScriptPolicyTest_mqucpgri.1vz.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mqucpgri.1vz.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/4084-5-0x00000299DBF90000-0x00000299DBFB2000-memory.dmp

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memory/4084-10-0x00007FFEC3D10000-0x00007FFEC47D1000-memory.dmp

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memory/4084-11-0x00000299F4530000-0x00000299F4540000-memory.dmp

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memory/4084-12-0x00000299F4530000-0x00000299F4540000-memory.dmp

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memory/4084-13-0x00000299F44B0000-0x00000299F44C2000-memory.dmp

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memory/4084-19-0x00007FFEC3D10000-0x00007FFEC47D1000-memory.dmp

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memory/4540-15-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4540-20-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4540-18-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4540-14-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4540-21-0x0000000000400000-0x0000000000438000-memory.dmp

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