oski | 35c7adde806daa386ef0e07fcde131bea44ccc9c7e8a03af0a80ed7385cb125f

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22-12-2023 13:22

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General

Target

a0d1d10ce1be5360824104bafd7eb255.ps1
Size

421KB
MD5

a0d1d10ce1be5360824104bafd7eb255
SHA1

a5d7ebda7760537e92279c807163b7835ab789e4
SHA256

35c7adde806daa386ef0e07fcde131bea44ccc9c7e8a03af0a80ed7385cb125f
SHA512

5c49df98788c7b5e2194330b98bdf3bc7d3567c6291f4356c39a3e57668d0d478cc6bf322d37bef5413fd90f80b788a7c1539fcb847d9187e345797c5dbc5c9d
SSDEEP

12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64qL68:q3B

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

/103.114.107.28/l39/

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 3032 set thread context of 2716	3032	powershell.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2964	2716	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3032	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3032	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2716	3032	powershell.exe	29
PID 3032 wrote to memory of 2716	3032	powershell.exe	29
PID 3032 wrote to memory of 2716	3032	powershell.exe	29
PID 3032 wrote to memory of 2716	3032	powershell.exe	29
PID 3032 wrote to memory of 2716	3032	powershell.exe	29
PID 3032 wrote to memory of 2716	3032	powershell.exe	29
PID 3032 wrote to memory of 2716	3032	powershell.exe	29
PID 3032 wrote to memory of 2716	3032	powershell.exe	29
PID 3032 wrote to memory of 2716	3032	powershell.exe	29
PID 3032 wrote to memory of 2716	3032	powershell.exe	29
PID 2716 wrote to memory of 2964	2716	MSBuild.exe	30
PID 2716 wrote to memory of 2964	2716	MSBuild.exe	30
PID 2716 wrote to memory of 2964	2716	MSBuild.exe	30
PID 2716 wrote to memory of 2964	2716	MSBuild.exe	30

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\a0d1d10ce1be5360824104bafd7eb255.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2716
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 496
    3⤵
    - Program crash
    PID:2964

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2716-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2716-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3032-9-0x0000000002940000-0x00000000029C0000-memory.dmp

Filesize
512KB

Download
memory/3032-11-0x0000000002940000-0x00000000029C0000-memory.dmp

Filesize
512KB

Download
memory/3032-25-0x000007FEF56B0000-0x000007FEF604D000-memory.dmp

Filesize
9.6MB

Download
memory/3032-4-0x000000001B350000-0x000000001B632000-memory.dmp

Filesize
2.9MB

Download
memory/3032-10-0x0000000002940000-0x00000000029C0000-memory.dmp

Filesize
512KB

Download
memory/3032-5-0x0000000001F20000-0x0000000001F28000-memory.dmp

Filesize
32KB

Download
memory/3032-8-0x000007FEF56B0000-0x000007FEF604D000-memory.dmp

Filesize
9.6MB

Download
memory/3032-7-0x0000000002940000-0x00000000029C0000-memory.dmp

Filesize
512KB

Download
memory/3032-6-0x000007FEF56B0000-0x000007FEF604D000-memory.dmp

Filesize
9.6MB

Download
memory/3032-12-0x0000000002860000-0x000000000286A000-memory.dmp

Filesize
40KB

Download