oski | 28022f04aeecc3944f89980f905b714d267dfba617e4b803eb1b1b38fee7371f

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
21/12/2023, 23:26

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General

Target
25190ed01b56665dc1ef07932f781619.ps1
Size 421KB
Sample231221-3fbphsaedl
SHA256 28022f04aeecc3944f89980f905b714d267dfba617e4b803eb1b1b38fee7371f
MD5 25190ed01b56665dc1ef07932f781619
SHA1 76818f1ba247c986f8d1aea6495b052ee39aa11e
SHA512 988a7b4b123d27a38c2e45056267f61404bd3b2d622d8c3552e137830722a3c4f04de6428324f11552a94b1b2a1682f45428ed1d3f2d2ae7d9221441af88a200
SSDEEP 12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64tL68:q3u
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l606/

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 3044 set thread context of 2732	3044	powershell.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2748	2732	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3044	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 2732	3044	powershell.exe	29
PID 3044 wrote to memory of 2732	3044	powershell.exe	29
PID 3044 wrote to memory of 2732	3044	powershell.exe	29
PID 3044 wrote to memory of 2732	3044	powershell.exe	29
PID 3044 wrote to memory of 2732	3044	powershell.exe	29
PID 3044 wrote to memory of 2732	3044	powershell.exe	29
PID 3044 wrote to memory of 2732	3044	powershell.exe	29
PID 3044 wrote to memory of 2732	3044	powershell.exe	29
PID 3044 wrote to memory of 2732	3044	powershell.exe	29
PID 3044 wrote to memory of 2732	3044	powershell.exe	29
PID 2732 wrote to memory of 2748	2732	MSBuild.exe	30
PID 2732 wrote to memory of 2748	2732	MSBuild.exe	30
PID 2732 wrote to memory of 2748	2732	MSBuild.exe	30
PID 2732 wrote to memory of 2748	2732	MSBuild.exe	30

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\25190ed01b56665dc1ef07932f781619.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2732 -s 504
    3⤵
    - Program crash
    PID:2748

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2732-15-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2732-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/2732-25-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2732-13-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2732-14-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2732-23-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2732-16-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2732-17-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2732-19-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2732-21-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/3044-9-0x0000000002730000-0x00000000027B0000-memory.dmp

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memory/3044-22-0x000007FEF53D0000-0x000007FEF5D6D000-memory.dmp

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memory/3044-6-0x000007FEF53D0000-0x000007FEF5D6D000-memory.dmp

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memory/3044-11-0x0000000002730000-0x00000000027B0000-memory.dmp

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memory/3044-10-0x0000000002730000-0x00000000027B0000-memory.dmp

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memory/3044-4-0x000000001B5B0000-0x000000001B892000-memory.dmp

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memory/3044-12-0x0000000002CA0000-0x0000000002CAA000-memory.dmp

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memory/3044-8-0x000007FEF53D0000-0x000007FEF5D6D000-memory.dmp

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memory/3044-7-0x0000000002730000-0x00000000027B0000-memory.dmp

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memory/3044-5-0x0000000002720000-0x0000000002728000-memory.dmp

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