oski | a59fbc4f9903ed18c989e87bc83073b463310ffe6c90a43c53400739719d0aae

Analysis

max time kernel
160s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
22-05-2022 05:25

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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

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 4848 set thread context of 3732	4848	FLP_1037850047.exe	85

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2336	3732	WerFault.exe	85

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4848	FLP_1037850047.exe
4848	FLP_1037850047.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4848	FLP_1037850047.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 3732	4848	FLP_1037850047.exe	85
PID 4848 wrote to memory of 3732	4848	FLP_1037850047.exe	85
PID 4848 wrote to memory of 3732	4848	FLP_1037850047.exe	85
PID 4848 wrote to memory of 3732	4848	FLP_1037850047.exe	85
PID 4848 wrote to memory of 3732	4848	FLP_1037850047.exe	85
PID 4848 wrote to memory of 3732	4848	FLP_1037850047.exe	85
PID 4848 wrote to memory of 3732	4848	FLP_1037850047.exe	85
PID 4848 wrote to memory of 3732	4848	FLP_1037850047.exe	85
PID 4848 wrote to memory of 3732	4848	FLP_1037850047.exe	85

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:4848
- C:\Users\Admin\AppData\Local\Temp\FLP_1037850047.exe
  C:\Users\Admin\AppData\Local\Temp\FLP_1037850047.exe
  2⤵
  PID:3732
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3732 -s 1340
    3⤵
    - Program crash
    PID:2336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3732 -ip 3732
1⤵
PID:3828

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3732-134-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3732-135-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3732-136-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3732-137-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4848-130-0x0000000000F40000-0x0000000000FA2000-memory.dmp

Filesize
392KB

Download
memory/4848-131-0x00000000059D0000-0x0000000005A46000-memory.dmp

Filesize
472KB

Download
memory/4848-132-0x0000000005940000-0x000000000595E000-memory.dmp

Filesize
120KB

Download