oski | 75883ef3a7a7df97423835189c1703dc2271ec1623701599698252b9f2489613

General

Target

387ca63a073cf45af288f89a3da3da8c.ps1
Size

656KB
MD5

387ca63a073cf45af288f89a3da3da8c
SHA1

4217bfd03054fd9f29bcbfc541953bc3f0c80fc3
SHA256

75883ef3a7a7df97423835189c1703dc2271ec1623701599698252b9f2489613
SHA512

a5095b2d67e41c99d1a007cbb6380f5e3e64ccf13a74b2d25c91a72b6726ede377fd9cfd0741b5c32f1e5543084dc703f5b5738d3e22b86340cca1b833ae39b5
SSDEEP

12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64M8TVkc5A+:g3QTmr+

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

C2

/103.114.107.28/l3030/

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 2140 set thread context of 2364	2140	powershell.exe	89

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1396	2364	WerFault.exe	89

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2140	powershell.exe
2140	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2140	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2364	2140	powershell.exe	89
PID 2140 wrote to memory of 2364	2140	powershell.exe	89
PID 2140 wrote to memory of 2364	2140	powershell.exe	89
PID 2140 wrote to memory of 2364	2140	powershell.exe	89
PID 2140 wrote to memory of 2364	2140	powershell.exe	89
PID 2140 wrote to memory of 2364	2140	powershell.exe	89
PID 2140 wrote to memory of 2364	2140	powershell.exe	89
PID 2140 wrote to memory of 2364	2140	powershell.exe	89
PID 2140 wrote to memory of 2364	2140	powershell.exe	89

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\387ca63a073cf45af288f89a3da3da8c.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #cmd
  2⤵
  PID:2364
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2364 -s 1044
    3⤵
    - Program crash
    PID:1396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2364 -ip 2364
1⤵
PID:4572

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ltcqcvw4.5v1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2140-33-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-29-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-12-0x000001C089D60000-0x000001C089D70000-memory.dmp

Filesize
64KB

Download
memory/2140-11-0x000001C089D60000-0x000001C089D70000-memory.dmp

Filesize
64KB

Download
memory/2140-47-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-15-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-53-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-45-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-14-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-43-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-60-0x00007FFFE9630000-0x00007FFFEA0F1000-memory.dmp

Filesize
10.8MB

Download
memory/2140-17-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-56-0x000001C089D60000-0x000001C089D70000-memory.dmp

Filesize
64KB

Download
memory/2140-54-0x000001C0A27F0000-0x000001C0A27F1000-memory.dmp

Filesize
4KB

Download
memory/2140-51-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-49-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-13-0x000001C0A27D0000-0x000001C0A27F6000-memory.dmp

Filesize
152KB

Download
memory/2140-19-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-21-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-41-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-39-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-37-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-35-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-9-0x000001C0A25A0000-0x000001C0A25C2000-memory.dmp

Filesize
136KB

Download
memory/2140-31-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-10-0x00007FFFE9630000-0x00007FFFEA0F1000-memory.dmp

Filesize
10.8MB

Download
memory/2140-27-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-25-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2140-23-0x000001C0A27D0000-0x000001C0A27F0000-memory.dmp

Filesize
128KB

Download
memory/2364-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2364-55-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2364-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2364-58-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2364-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

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