oski | fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580

General

Target

fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe
Size

683KB
MD5

5416530357bb5da383cf14e201561e61
SHA1

731e752122eaa55d91e015fc4e0bfbff8303f1e6
SHA256

fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580
SHA512

6a12de95a6e77910a449ea830b6eef43a27173ee63f614a0cc7944df5512b5896598bf0fdd326659c664e0e1d794015e5d47f69e723b80db4ec33ac93b8453f7

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

C2

mantis.ug

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 3560 set thread context of 4544	3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	78

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2004	4544	WerFault.exe	78

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe
3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe
3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe
3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe
3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe
3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3560 wrote to memory of 4544	3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	78
PID 3560 wrote to memory of 4544	3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	78
PID 3560 wrote to memory of 4544	3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	78
PID 3560 wrote to memory of 4544	3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	78
PID 3560 wrote to memory of 4544	3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	78
PID 3560 wrote to memory of 4544	3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	78
PID 3560 wrote to memory of 4544	3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	78
PID 3560 wrote to memory of 4544	3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	78
PID 3560 wrote to memory of 4544	3560	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	78

C:\Users\Admin\AppData\Local\Temp\fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe
"C:\Users\Admin\AppData\Local\Temp\fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Users\Admin\AppData\Local\Temp\fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe
  "{path}"
  2⤵
  PID:4544
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 1292
    3⤵
    - Program crash
    PID:2004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4544 -ip 4544
1⤵
PID:2196

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

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Downloads

memory/3560-130-0x0000000074C20000-0x00000000751D1000-memory.dmp

Filesize
5.7MB

Download
memory/4544-132-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4544-133-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4544-134-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4544-135-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

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