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

Processes:

FLP_1037850047.exe

description pid process target process

PID 1840 set thread context of 3052 1840 FLP_1037850047.exe FLP_1037850047.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3220 3052 WerFault.exe FLP_1037850047.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

FLP_1037850047.exe

pid process

1840 FLP_1037850047.exe
1840 FLP_1037850047.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

FLP_1037850047.exe

description pid process

Token: SeDebugPrivilege 1840 FLP_1037850047.exe

description	pid	process	target process
PID 1840 set thread context of 3052	1840	FLP_1037850047.exe	FLP_1037850047.exe

pid	pid_target	process	target process
3220	3052	WerFault.exe	FLP_1037850047.exe

pid	process
1840	FLP_1037850047.exe
1840	FLP_1037850047.exe

description	pid	process
Token: SeDebugPrivilege	1840	FLP_1037850047.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

FLP_1037850047.exe

description	pid	process	target process
PID 1840 wrote to memory of 3052	1840	FLP_1037850047.exe	FLP_1037850047.exe
PID 1840 wrote to memory of 3052	1840	FLP_1037850047.exe	FLP_1037850047.exe
PID 1840 wrote to memory of 3052	1840	FLP_1037850047.exe	FLP_1037850047.exe
PID 1840 wrote to memory of 3052	1840	FLP_1037850047.exe	FLP_1037850047.exe
PID 1840 wrote to memory of 3052	1840	FLP_1037850047.exe	FLP_1037850047.exe
PID 1840 wrote to memory of 3052	1840	FLP_1037850047.exe	FLP_1037850047.exe
PID 1840 wrote to memory of 3052	1840	FLP_1037850047.exe	FLP_1037850047.exe
PID 1840 wrote to memory of 3052	1840	FLP_1037850047.exe	FLP_1037850047.exe
PID 1840 wrote to memory of 3052	1840	FLP_1037850047.exe	FLP_1037850047.exe

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:1840

C:\Users\Admin\AppData\Local\Temp\FLP_1037850047.exe
C:\Users\Admin\AppData\Local\Temp\FLP_1037850047.exe
2⤵
PID:3052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3052 -s 1292
3⤵
- Program crash
PID:3220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3052 -ip 3052
1⤵
PID:3124

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1840-130-0x00000000002A0000-0x0000000000302000-memory.dmp

Filesize
392KB

Download
memory/1840-131-0x0000000004B80000-0x0000000004BF6000-memory.dmp

Filesize
472KB

Download
memory/1840-132-0x0000000004C00000-0x0000000004C1E000-memory.dmp

Filesize
120KB

Download
memory/3052-133-0x0000000000000000-mapping.dmp

Download
memory/3052-134-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3052-135-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3052-136-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3052-137-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3052-138-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

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