oski | 7a1cb678e79d27382387cd8df1b5f6f36c7d4b45b0151f608b125d226f6f16dc

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
17-03-2024 01:01

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General

Target

cf8783d1c9bd6b15618c6de26308703b.ps1
Size

421KB
MD5

cf8783d1c9bd6b15618c6de26308703b
SHA1

2c15c65fd72e57d00913371e2745f467f75c4dd8
SHA256

7a1cb678e79d27382387cd8df1b5f6f36c7d4b45b0151f608b125d226f6f16dc
SHA512

5766a22b1b54feaf6ef387bb078068f28ab437b05239ecffd8d85006584cfd84cab1dcbc2fc1f554f9c5142b88d1cb3d1461d96802d0c1eda89ea715e3cf614c
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64dL68:q3y

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l27/

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 2152 set thread context of 2628	2152	powershell.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1664	2628	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2152	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2152	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 2628	2152	powershell.exe	29
PID 2152 wrote to memory of 2628	2152	powershell.exe	29
PID 2152 wrote to memory of 2628	2152	powershell.exe	29
PID 2152 wrote to memory of 2628	2152	powershell.exe	29
PID 2152 wrote to memory of 2628	2152	powershell.exe	29
PID 2152 wrote to memory of 2628	2152	powershell.exe	29
PID 2152 wrote to memory of 2628	2152	powershell.exe	29
PID 2152 wrote to memory of 2628	2152	powershell.exe	29
PID 2152 wrote to memory of 2628	2152	powershell.exe	29
PID 2152 wrote to memory of 2628	2152	powershell.exe	29
PID 2628 wrote to memory of 1664	2628	MSBuild.exe	30
PID 2628 wrote to memory of 1664	2628	MSBuild.exe	30
PID 2628 wrote to memory of 1664	2628	MSBuild.exe	30
PID 2628 wrote to memory of 1664	2628	MSBuild.exe	30

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\cf8783d1c9bd6b15618c6de26308703b.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2628 -s 500
    3⤵
    - Program crash
    PID:1664

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2152-5-0x000007FEF55A0000-0x000007FEF5F3D000-memory.dmp

Filesize
9.6MB

Download
memory/2152-4-0x000000001B420000-0x000000001B702000-memory.dmp

Filesize
2.9MB

Download
memory/2152-7-0x0000000001ED0000-0x0000000001ED8000-memory.dmp

Filesize
32KB

Download
memory/2152-6-0x0000000002300000-0x0000000002380000-memory.dmp

Filesize
512KB

Download
memory/2152-8-0x000007FEF55A0000-0x000007FEF5F3D000-memory.dmp

Filesize
9.6MB

Download
memory/2152-9-0x0000000002300000-0x0000000002380000-memory.dmp

Filesize
512KB

Download
memory/2152-10-0x0000000002300000-0x0000000002380000-memory.dmp

Filesize
512KB

Download
memory/2152-11-0x0000000002300000-0x0000000002380000-memory.dmp

Filesize
512KB

Download
memory/2152-12-0x0000000002630000-0x000000000263A000-memory.dmp

Filesize
40KB

Download
memory/2152-26-0x000007FEF55A0000-0x000007FEF5F3D000-memory.dmp

Filesize
9.6MB

Download
memory/2628-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2628-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2628-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2628-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2628-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2628-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2628-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2628-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2628-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download