oski | a59fbc4f9903ed18c989e87bc83073b463310ffe6c90a43c53400739719d0aae

General

Target

FLP_1037850047.exe
Size

379KB
MD5

d32bc982566fbb8d81d3012779d3c320
SHA1

74e5c60af59a50757abc29942c888fa43e854204
SHA256

a59fbc4f9903ed18c989e87bc83073b463310ffe6c90a43c53400739719d0aae
SHA512

de6afafb1412a652405072ba6f123383baa55e9287bbbef8a2e9c25edbfdebb6bf9e8aa1834caf386384096ce7eaa3c9dc03b7831f134ad8ccc4c98f066db699

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

C2

duiy.xyz

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 380 set thread context of 836	380	FLP_1037850047.exe	28

Program crash 1 IoCs

pid	pid_target	Process	procid_target
628	836	WerFault.exe	28

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
380	FLP_1037850047.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	380	FLP_1037850047.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 380 wrote to memory of 836	380	FLP_1037850047.exe	28
PID 380 wrote to memory of 836	380	FLP_1037850047.exe	28
PID 380 wrote to memory of 836	380	FLP_1037850047.exe	28
PID 380 wrote to memory of 836	380	FLP_1037850047.exe	28
PID 380 wrote to memory of 836	380	FLP_1037850047.exe	28
PID 380 wrote to memory of 836	380	FLP_1037850047.exe	28
PID 380 wrote to memory of 836	380	FLP_1037850047.exe	28
PID 380 wrote to memory of 836	380	FLP_1037850047.exe	28
PID 380 wrote to memory of 836	380	FLP_1037850047.exe	28
PID 380 wrote to memory of 836	380	FLP_1037850047.exe	28
PID 836 wrote to memory of 628	836	FLP_1037850047.exe	33
PID 836 wrote to memory of 628	836	FLP_1037850047.exe	33
PID 836 wrote to memory of 628	836	FLP_1037850047.exe	33
PID 836 wrote to memory of 628	836	FLP_1037850047.exe	33

C:\Users\Admin\AppData\Local\Temp\FLP_1037850047.exe
"C:\Users\Admin\AppData\Local\Temp\FLP_1037850047.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:380
- C:\Users\Admin\AppData\Local\Temp\FLP_1037850047.exe
  C:\Users\Admin\AppData\Local\Temp\FLP_1037850047.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:836
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 256
    3⤵
    - Program crash
    PID:628

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/380-54-0x0000000000D60000-0x0000000000DC2000-memory.dmp

Filesize
392KB

Download
memory/380-55-0x00000000001E0000-0x00000000001EA000-memory.dmp

Filesize
40KB

Download
memory/380-56-0x0000000000330000-0x0000000000352000-memory.dmp

Filesize
136KB

Download
memory/380-57-0x00000000765F1000-0x00000000765F3000-memory.dmp

Filesize
8KB

Download
memory/836-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/836-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/836-63-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/836-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/836-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/836-70-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/836-72-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/836-58-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing