oski | 1301c090453fd24b3da7c9d9aa968da1a4d21ec187b23e8eae8b25f521aece2a

General

Target

924ac76d8c78cfb7818bcdc75d0f44a7.exe
Size

931KB
MD5

924ac76d8c78cfb7818bcdc75d0f44a7
SHA1

e8c7c34a19418dd2a1752e3f9e5b09871c352058
SHA256

1301c090453fd24b3da7c9d9aa968da1a4d21ec187b23e8eae8b25f521aece2a
SHA512

bb12e6682a11f195282e3ce14fb006a37bff8cfb0146924c996c80e7e2d76ffc47581bfae85f0017fd062515da8809ebf6fc46920349672ca648a0af22545427

Score

10^/10

oski infostealer spyware stealer suricata

Malware Config

Extracted

Family

oski

C2

nedu1994.xyz

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata
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:

924ac76d8c78cfb7818bcdc75d0f44a7.exe

description pid process target process

PID 1916 set thread context of 4964 1916 924ac76d8c78cfb7818bcdc75d0f44a7.exe 924ac76d8c78cfb7818bcdc75d0f44a7.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4240 4964 WerFault.exe 924ac76d8c78cfb7818bcdc75d0f44a7.exe

description	pid	process	target process
PID 1916 set thread context of 4964	1916	924ac76d8c78cfb7818bcdc75d0f44a7.exe	924ac76d8c78cfb7818bcdc75d0f44a7.exe

pid	pid_target	process	target process
4240	4964	WerFault.exe	924ac76d8c78cfb7818bcdc75d0f44a7.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

924ac76d8c78cfb7818bcdc75d0f44a7.exe

description	pid	process	target process
PID 1916 wrote to memory of 4964	1916	924ac76d8c78cfb7818bcdc75d0f44a7.exe	924ac76d8c78cfb7818bcdc75d0f44a7.exe
PID 1916 wrote to memory of 4964	1916	924ac76d8c78cfb7818bcdc75d0f44a7.exe	924ac76d8c78cfb7818bcdc75d0f44a7.exe
PID 1916 wrote to memory of 4964	1916	924ac76d8c78cfb7818bcdc75d0f44a7.exe	924ac76d8c78cfb7818bcdc75d0f44a7.exe
PID 1916 wrote to memory of 4964	1916	924ac76d8c78cfb7818bcdc75d0f44a7.exe	924ac76d8c78cfb7818bcdc75d0f44a7.exe
PID 1916 wrote to memory of 4964	1916	924ac76d8c78cfb7818bcdc75d0f44a7.exe	924ac76d8c78cfb7818bcdc75d0f44a7.exe
PID 1916 wrote to memory of 4964	1916	924ac76d8c78cfb7818bcdc75d0f44a7.exe	924ac76d8c78cfb7818bcdc75d0f44a7.exe
PID 1916 wrote to memory of 4964	1916	924ac76d8c78cfb7818bcdc75d0f44a7.exe	924ac76d8c78cfb7818bcdc75d0f44a7.exe
PID 1916 wrote to memory of 4964	1916	924ac76d8c78cfb7818bcdc75d0f44a7.exe	924ac76d8c78cfb7818bcdc75d0f44a7.exe
PID 1916 wrote to memory of 4964	1916	924ac76d8c78cfb7818bcdc75d0f44a7.exe	924ac76d8c78cfb7818bcdc75d0f44a7.exe

C:\Users\Admin\AppData\Local\Temp\924ac76d8c78cfb7818bcdc75d0f44a7.exe
"C:\Users\Admin\AppData\Local\Temp\924ac76d8c78cfb7818bcdc75d0f44a7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1916

C:\Users\Admin\AppData\Local\Temp\924ac76d8c78cfb7818bcdc75d0f44a7.exe
"C:\Users\Admin\AppData\Local\Temp\924ac76d8c78cfb7818bcdc75d0f44a7.exe"
2⤵
PID:4964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 1336
3⤵
- Program crash
PID:4240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4964 -ip 4964
1⤵
PID:4088

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/1916-130-0x00000000009D0000-0x0000000000ABE000-memory.dmp

Filesize
952KB

Download
memory/1916-131-0x0000000005510000-0x00000000055AC000-memory.dmp

Filesize
624KB

Download
memory/1916-132-0x0000000005B60000-0x0000000006104000-memory.dmp

Filesize
5.6MB

Download
memory/1916-133-0x00000000055B0000-0x0000000005642000-memory.dmp

Filesize
584KB

Download
memory/1916-134-0x0000000005690000-0x000000000569A000-memory.dmp

Filesize
40KB

Download
memory/1916-135-0x0000000005700000-0x0000000005756000-memory.dmp

Filesize
344KB

Download
memory/4964-136-0x0000000000000000-mapping.dmp

Download
memory/4964-137-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4964-138-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4964-139-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4964-140-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4964-141-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

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