agenttesla | 441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76

System Information Discovery

Processes:

441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe

description	pid	process	target process
PID 4856 set thread context of 4060	4856	441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe	441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe

Drops file in Windows directory 1 IoCs

Processes:

dw20.exe

description ioc process

File created C:\Windows\AppCompat\Programs\Amcache.hve.tmp dw20.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	dw20.exe

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

Processes:

441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exeschtasks.exe441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exedw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.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

Processes:

dw20.exe

description	ioc	process
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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

Processes:

dw20.exe

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

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

4880 schtasks.exe

pid	process
4880	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe

pid	process
4856	441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe
4856	441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe
4856	441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exedw20.exe

description	pid	process
Token: SeDebugPrivilege	4856	441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe
Token: SeRestorePrivilege	1044	dw20.exe
Token: SeBackupPrivilege	1044	dw20.exe
Token: SeBackupPrivilege	1044	dw20.exe
Token: SeBackupPrivilege	1044	dw20.exe
Token: SeBackupPrivilege	1044	dw20.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe

C:\Users\Admin\AppData\Local\Temp\441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe
"C:\Users\Admin\AppData\Local\Temp\441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4856
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FPftjmFZNWWOU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5FCE.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4880
- C:\Users\Admin\AppData\Local\Temp\441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe
  "{path}"
  2⤵
  PID:3964
- C:\Users\Admin\AppData\Local\Temp\441b41d0f485b1bb4d934c51cb236b39696fae7e78fd2c8af57c7f5d958a5f76.exe
  "{path}"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4060
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 776
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:1044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

3

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery