oski | 88c49394335764ad5067bcfaad9eb7f94223a0daa0bda046bd1b165805f3aa55

General

Target

2053423b9f42e0a05d2637afd4708098.ps1
Size

656KB
MD5

2053423b9f42e0a05d2637afd4708098
SHA1

c78da591db55e013b2b36854c6842b01133b08f7
SHA256

88c49394335764ad5067bcfaad9eb7f94223a0daa0bda046bd1b165805f3aa55
SHA512

fa6e821999ea080f63b48a36f8e64d644950f2f79216259958f218f82cc52261bc11f92d4b027ce820ecf3c692a858db9fb368f8b96528074a33f1d492b0bbcb
SSDEEP

12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64s8TVkc5A+:g3wTmr+

Score

10^/10

oski infostealer

Malware Config

Extracted

Family

oski

C2

/103.114.107.28/l1010/

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 2476 set thread context of 872	2476	powershell.exe	91

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4904	872	WerFault.exe	91

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2476	powershell.exe
2476	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2476	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 872	2476	powershell.exe	91
PID 2476 wrote to memory of 872	2476	powershell.exe	91
PID 2476 wrote to memory of 872	2476	powershell.exe	91
PID 2476 wrote to memory of 872	2476	powershell.exe	91
PID 2476 wrote to memory of 872	2476	powershell.exe	91
PID 2476 wrote to memory of 872	2476	powershell.exe	91
PID 2476 wrote to memory of 872	2476	powershell.exe	91
PID 2476 wrote to memory of 872	2476	powershell.exe	91
PID 2476 wrote to memory of 872	2476	powershell.exe	91

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\2053423b9f42e0a05d2637afd4708098.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #cmd
  2⤵
  PID:872
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 1108
    3⤵
    - Program crash
    PID:4904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 872 -ip 872
1⤵
PID:1708

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rcvj3o0k.tim.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/872-56-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/872-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/872-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/872-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/872-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2476-42-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-46-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-20-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-28-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-26-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-34-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-32-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-30-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-38-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-44-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-0-0x0000014E3B5D0000-0x0000014E3B5F2000-memory.dmp

Filesize
136KB

Download
memory/2476-52-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-54-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-50-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-48-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-18-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-40-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-36-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-24-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-22-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-15-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-16-0x0000014E3B770000-0x0000014E3B790000-memory.dmp

Filesize
128KB

Download
memory/2476-14-0x0000014E3B770000-0x0000014E3B796000-memory.dmp

Filesize
152KB

Download
memory/2476-55-0x0000014E394D0000-0x0000014E394D1000-memory.dmp

Filesize
4KB

Download
memory/2476-60-0x00007FFE62BC0000-0x00007FFE63681000-memory.dmp

Filesize
10.8MB

Download
memory/2476-13-0x0000014E394E0000-0x0000014E394F0000-memory.dmp

Filesize
64KB

Download
memory/2476-12-0x0000014E394E0000-0x0000014E394F0000-memory.dmp

Filesize
64KB

Download
memory/2476-11-0x0000014E394E0000-0x0000014E394F0000-memory.dmp

Filesize
64KB

Download
memory/2476-10-0x00007FFE62BC0000-0x00007FFE63681000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing