oski | ad3b313a244216f2b1351bae0e8c7e62292c4fe657670a6a604619673236508f

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-03-2024 03:14

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General

Target

b3a18b4fa0d0ea832e9807e265669977.ps1
Size

421KB
MD5

b3a18b4fa0d0ea832e9807e265669977
SHA1

72a2cae6bb16f9ec097fcf09e6ca2691e561cc9e
SHA256

ad3b313a244216f2b1351bae0e8c7e62292c4fe657670a6a604619673236508f
SHA512

31c5eb719f524cd90be5a0e86adaba0e247ddbfba5b45dd1abeda2e4c79fe27eaf8193c63fd1c5c57fa331a55ca84e772b1f9bb5013a1447ec8b1d3298052083
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64sL68:q3n

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l1010/

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 2864 set thread context of 2736	2864	powershell.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
848	2736	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2864	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2864	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 2736	2864	powershell.exe	29
PID 2864 wrote to memory of 2736	2864	powershell.exe	29
PID 2864 wrote to memory of 2736	2864	powershell.exe	29
PID 2864 wrote to memory of 2736	2864	powershell.exe	29
PID 2864 wrote to memory of 2736	2864	powershell.exe	29
PID 2864 wrote to memory of 2736	2864	powershell.exe	29
PID 2864 wrote to memory of 2736	2864	powershell.exe	29
PID 2864 wrote to memory of 2736	2864	powershell.exe	29
PID 2864 wrote to memory of 2736	2864	powershell.exe	29
PID 2864 wrote to memory of 2736	2864	powershell.exe	29
PID 2736 wrote to memory of 848	2736	MSBuild.exe	30
PID 2736 wrote to memory of 848	2736	MSBuild.exe	30
PID 2736 wrote to memory of 848	2736	MSBuild.exe	30
PID 2736 wrote to memory of 848	2736	MSBuild.exe	30

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\b3a18b4fa0d0ea832e9807e265669977.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2864
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2736
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2736 -s 500
    3⤵
    - Program crash
    PID:848

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2736-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2864-5-0x000007FEF5C10000-0x000007FEF65AD000-memory.dmp

Filesize
9.6MB

Download
memory/2864-11-0x0000000002A90000-0x0000000002A9A000-memory.dmp

Filesize
40KB

Download
memory/2864-4-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download
memory/2864-6-0x0000000002340000-0x0000000002348000-memory.dmp

Filesize
32KB

Download
memory/2864-20-0x000007FEF5C10000-0x000007FEF65AD000-memory.dmp

Filesize
9.6MB

Download
memory/2864-10-0x0000000002970000-0x00000000029F0000-memory.dmp

Filesize
512KB

Download
memory/2864-8-0x000007FEF5C10000-0x000007FEF65AD000-memory.dmp

Filesize
9.6MB

Download
memory/2864-9-0x0000000002970000-0x00000000029F0000-memory.dmp

Filesize
512KB

Download
memory/2864-7-0x0000000002970000-0x00000000029F0000-memory.dmp

Filesize
512KB

Download