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 584 set thread context of 1112	584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	27

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1448	1112	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe
584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe
584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe
584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 584 wrote to memory of 1112	584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	27
PID 584 wrote to memory of 1112	584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	27
PID 584 wrote to memory of 1112	584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	27
PID 584 wrote to memory of 1112	584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	27
PID 584 wrote to memory of 1112	584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	27
PID 584 wrote to memory of 1112	584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	27
PID 584 wrote to memory of 1112	584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	27
PID 584 wrote to memory of 1112	584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	27
PID 584 wrote to memory of 1112	584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	27
PID 584 wrote to memory of 1112	584	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	27
PID 1112 wrote to memory of 1448	1112	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	31
PID 1112 wrote to memory of 1448	1112	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	31
PID 1112 wrote to memory of 1448	1112	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	31
PID 1112 wrote to memory of 1448	1112	fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe	31

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:584
- C:\Users\Admin\AppData\Local\Temp\fbfe9e8babf879a2b09f9478ab57e617af9fe56cfa40ee7a2921001ec6167580.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1112
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1112 -s 800
    3⤵
    - Program crash
    PID:1448

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/584-54-0x00000000759E1000-0x00000000759E3000-memory.dmp

Filesize
8KB

Download
memory/584-55-0x0000000074C20000-0x00000000751CB000-memory.dmp

Filesize
5.7MB

Download
memory/1112-56-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1112-57-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1112-59-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1112-61-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1112-63-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1112-65-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1112-68-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1112-70-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

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