oski | 16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e

General

Target

16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe
Size

292KB
MD5

4e820624a50df38378d06063608a50a9
SHA1

33d46f4b8430e08f3e74f2cb0c14dd876c92e5c1
SHA256

16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e
SHA512

f71cfd3c19bf591effa56c38243f19dd2649dc2305328dfe2b2a971e2a4165a174b5a78cf8cfebf98393e7d18b1066356b7158bc8f10b55d267db8e5e7d33bbd
SSDEEP

6144:iloykaNXjYQUDA79GTulOSdAeGr1eIu97mL6K9GIM62:i1kaNTaDA5OkWeP9C+K9GIM62

Score

10^/10

oski infostealer persistence spyware stealer

Malware Config

Extracted

Family

oski

C2

timecforgoodnes.ml

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Windows Services = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Update Folder\\Windows Update.exe"	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1460 set thread context of 1112	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	27

Program crash 1 IoCs

pid	pid_target	Process	procid_target
976	1112	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe
1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe
1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 1108	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	26
PID 1460 wrote to memory of 1108	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	26
PID 1460 wrote to memory of 1108	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	26
PID 1460 wrote to memory of 1108	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	26
PID 1460 wrote to memory of 1112	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	27
PID 1460 wrote to memory of 1112	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	27
PID 1460 wrote to memory of 1112	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	27
PID 1460 wrote to memory of 1112	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	27
PID 1460 wrote to memory of 1112	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	27
PID 1460 wrote to memory of 1112	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	27
PID 1460 wrote to memory of 1112	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	27
PID 1460 wrote to memory of 1112	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	27
PID 1460 wrote to memory of 1112	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	27
PID 1460 wrote to memory of 1112	1460	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	27
PID 1112 wrote to memory of 976	1112	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	30
PID 1112 wrote to memory of 976	1112	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	30
PID 1112 wrote to memory of 976	1112	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	30
PID 1112 wrote to memory of 976	1112	16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe	30

C:\Users\Admin\AppData\Local\Temp\16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe
"C:\Users\Admin\AppData\Local\Temp\16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Users\Admin\AppData\Local\Temp\16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe
  "C:\Users\Admin\AppData\Local\Temp\16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe"
  2⤵
  PID:1108
- C:\Users\Admin\AppData\Local\Temp\16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe
  "C:\Users\Admin\AppData\Local\Temp\16915202866eb8e9d42298ec1e2a20c8694267b67e10dba3f6169d5c712ffe9e.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1112
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1112 -s 836
    3⤵
    - Program crash
    PID:976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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/1112-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1112-57-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1112-58-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1112-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1112-73-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1112-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1112-71-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1112-66-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1112-69-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1112-70-0x00000000768A1000-0x00000000768A3000-memory.dmp

Filesize
8KB

Download
memory/1460-56-0x00000000004F0000-0x00000000004FA000-memory.dmp

Filesize
40KB

Download
memory/1460-55-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/1460-54-0x00000000001B0000-0x0000000000204000-memory.dmp

Filesize
336KB

Download

Analysis

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