oski | d02672efdf8edc3a02c71889fc5f04ffd4d469de77cca44764edee4592b89ce2

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21-03-2024 05:18

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General

Target

dac9484cbfa5767670567eec53d8979b.ps1
Size

421KB
MD5

dac9484cbfa5767670567eec53d8979b
SHA1

e920708eb445d8f822d5a85d726bfddaa27dd00f
SHA256

d02672efdf8edc3a02c71889fc5f04ffd4d469de77cca44764edee4592b89ce2
SHA512

cde490119de920287b6d6e7ba84820690b553976b4afe013c53565088383e53a3dfd84bab3808d79a6ba6b4459a9abdd6dd8feda89d6a90f6dc5b6d8997d276f
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw644L68:q3j

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l22/

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description	pid	Process	procid_target
PID 844 set thread context of 2972	844	powershell.exe	29

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2576	2972	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid	Process
844	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	844	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

powershell.exeMSBuild.exe

description	pid	Process	procid_target
PID 844 wrote to memory of 2972	844	powershell.exe	29
PID 844 wrote to memory of 2972	844	powershell.exe	29
PID 844 wrote to memory of 2972	844	powershell.exe	29
PID 844 wrote to memory of 2972	844	powershell.exe	29
PID 844 wrote to memory of 2972	844	powershell.exe	29
PID 844 wrote to memory of 2972	844	powershell.exe	29
PID 844 wrote to memory of 2972	844	powershell.exe	29
PID 844 wrote to memory of 2972	844	powershell.exe	29
PID 844 wrote to memory of 2972	844	powershell.exe	29
PID 844 wrote to memory of 2972	844	powershell.exe	29
PID 2972 wrote to memory of 2576	2972	MSBuild.exe	30
PID 2972 wrote to memory of 2576	2972	MSBuild.exe	30
PID 2972 wrote to memory of 2576	2972	MSBuild.exe	30
PID 2972 wrote to memory of 2576	2972	MSBuild.exe	30

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\dac9484cbfa5767670567eec53d8979b.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:844
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2972
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2972 -s 500
    3⤵
    - Program crash
    PID:2576

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/844-26-0x000007FEF5220000-0x000007FEF5BBD000-memory.dmp

Filesize
9.6MB

Download
memory/844-5-0x0000000001F40000-0x0000000001F48000-memory.dmp

Filesize
32KB

Download
memory/844-6-0x000007FEF5220000-0x000007FEF5BBD000-memory.dmp

Filesize
9.6MB

Download
memory/844-7-0x00000000025E0000-0x0000000002660000-memory.dmp

Filesize
512KB

Download
memory/844-8-0x000007FEF5220000-0x000007FEF5BBD000-memory.dmp

Filesize
9.6MB

Download
memory/844-9-0x00000000025E0000-0x0000000002660000-memory.dmp

Filesize
512KB

Download
memory/844-10-0x00000000025E0000-0x0000000002660000-memory.dmp

Filesize
512KB

Download
memory/844-11-0x0000000002A30000-0x0000000002A3A000-memory.dmp

Filesize
40KB

Download
memory/844-4-0x000000001B320000-0x000000001B602000-memory.dmp

Filesize
2.9MB

Download
memory/2972-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2972-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download