isrstealer | ca9a0508098750e531fa463177c083ce1081272dd5d4171ca990452bde29b5b4

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Control Panel\International\Geo\Nation	JaffaCakes118_8bd0bf298b834a0b248f320b943bf92e.exe

Executes dropped EXE 2 IoCs

pid	Process
3112	ÊÅôÏÄ.exe
1576	winhost.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3112 set thread context of 1576	3112	ÊÅôÏÄ.exe	88

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8bd0bf298b834a0b248f320b943bf92e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ÊÅôÏÄ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1576	winhost.exe
1576	winhost.exe
1576	winhost.exe
1576	winhost.exe
1576	winhost.exe
1576	winhost.exe
1576	winhost.exe
1576	winhost.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3112	ÊÅôÏÄ.exe
Token: SeRestorePrivilege	5052	dw20.exe
Token: SeBackupPrivilege	5052	dw20.exe
Token: SeBackupPrivilege	5052	dw20.exe
Token: SeBackupPrivilege	5052	dw20.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1576	winhost.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3512 wrote to memory of 3112	3512	JaffaCakes118_8bd0bf298b834a0b248f320b943bf92e.exe	87
PID 3512 wrote to memory of 3112	3512	JaffaCakes118_8bd0bf298b834a0b248f320b943bf92e.exe	87
PID 3512 wrote to memory of 3112	3512	JaffaCakes118_8bd0bf298b834a0b248f320b943bf92e.exe	87
PID 3112 wrote to memory of 1576	3112	ÊÅôÏÄ.exe	88
PID 3112 wrote to memory of 1576	3112	ÊÅôÏÄ.exe	88
PID 3112 wrote to memory of 1576	3112	ÊÅôÏÄ.exe	88
PID 3112 wrote to memory of 1576	3112	ÊÅôÏÄ.exe	88
PID 3112 wrote to memory of 1576	3112	ÊÅôÏÄ.exe	88
PID 3112 wrote to memory of 1576	3112	ÊÅôÏÄ.exe	88
PID 3112 wrote to memory of 1576	3112	ÊÅôÏÄ.exe	88
PID 3112 wrote to memory of 1576	3112	ÊÅôÏÄ.exe	88
PID 3112 wrote to memory of 5052	3112	ÊÅôÏÄ.exe	89
PID 3112 wrote to memory of 5052	3112	ÊÅôÏÄ.exe	89
PID 3112 wrote to memory of 5052	3112	ÊÅôÏÄ.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8bd0bf298b834a0b248f320b943bf92e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8bd0bf298b834a0b248f320b943bf92e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3512
- C:\Users\Admin\AppData\Local\Temp\ÊÅôÏÄ.exe
  "C:\Users\Admin\AppData\Local\Temp\ÊÅôÏÄ.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3112
- - C:\Users\Admin\AppData\Local\Temp\winhost.exe
    C:\Users\Admin\AppData\Local\Temp\winhost.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    PID:1576
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 936
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:5052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

3

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery