oski | 8aab64d02092bea3f4a51f06b243b41c80492c92b3b83997c7e498fd69e10506

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22-12-2023 00:55

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General

Target

3d793ab63dcd431fa16d38ec5ab1f9c7.ps1
Size

421KB
MD5

3d793ab63dcd431fa16d38ec5ab1f9c7
SHA1

74c4de4e37b5ffa5f7845541efad58c64c566928
SHA256

8aab64d02092bea3f4a51f06b243b41c80492c92b3b83997c7e498fd69e10506
SHA512

5db3733da6a7e60c3f3cc8c20902aaf04a449e82eb9920aa7c0462fc3741390778ad1b0f8eae0f7c65b6967bffc6cb68b2e34811627f61023f8690470eeafa30
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64fL68:q3w

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l25/

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 1900 set thread context of 1892	1900	powershell.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2756	1892	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1900	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1900	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 1892	1900	powershell.exe	29
PID 1900 wrote to memory of 1892	1900	powershell.exe	29
PID 1900 wrote to memory of 1892	1900	powershell.exe	29
PID 1900 wrote to memory of 1892	1900	powershell.exe	29
PID 1900 wrote to memory of 1892	1900	powershell.exe	29
PID 1900 wrote to memory of 1892	1900	powershell.exe	29
PID 1900 wrote to memory of 1892	1900	powershell.exe	29
PID 1900 wrote to memory of 1892	1900	powershell.exe	29
PID 1900 wrote to memory of 1892	1900	powershell.exe	29
PID 1900 wrote to memory of 1892	1900	powershell.exe	29
PID 1892 wrote to memory of 2756	1892	MSBuild.exe	30
PID 1892 wrote to memory of 2756	1892	MSBuild.exe	30
PID 1892 wrote to memory of 2756	1892	MSBuild.exe	30
PID 1892 wrote to memory of 2756	1892	MSBuild.exe	30

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\3d793ab63dcd431fa16d38ec5ab1f9c7.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1892
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1892 -s 112
    3⤵
    - Program crash
    PID:2756

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1892-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1892-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1892-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1892-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1892-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1892-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1892-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1892-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1900-8-0x000007FEF5240000-0x000007FEF5BDD000-memory.dmp

Filesize
9.6MB

Download
memory/1900-12-0x0000000002790000-0x000000000279A000-memory.dmp

Filesize
40KB

Download
memory/1900-11-0x00000000027E0000-0x0000000002860000-memory.dmp

Filesize
512KB

Download
memory/1900-10-0x00000000027E0000-0x0000000002860000-memory.dmp

Filesize
512KB

Download
memory/1900-9-0x00000000027E0000-0x0000000002860000-memory.dmp

Filesize
512KB

Download
memory/1900-4-0x000000001B360000-0x000000001B642000-memory.dmp

Filesize
2.9MB

Download
memory/1900-6-0x0000000002290000-0x0000000002298000-memory.dmp

Filesize
32KB

Download
memory/1900-7-0x00000000027E0000-0x0000000002860000-memory.dmp

Filesize
512KB

Download
memory/1900-5-0x000007FEF5240000-0x000007FEF5BDD000-memory.dmp

Filesize
9.6MB

Download
memory/1900-24-0x000007FEF5240000-0x000007FEF5BDD000-memory.dmp

Filesize
9.6MB

Download