saintbot | a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation	a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11244.exe	a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11244.exe	11244.exe

Executes dropped EXE 1 IoCs

pid	Process
3484	11244.exe

Loads dropped DLL 2 IoCs

pid	Process
3484	11244.exe
3416	EhStorAuthn.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Maps connected drives based on registry 3 TTPs 6 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	11244.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	11244.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	EhStorAuthn.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	EhStorAuthn.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\EhStorAuthn.exe	EhStorAuthn.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 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	EhStorAuthn.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EhStorAuthn.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

pid	Process
3160	schtasks.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
4744	tasklist.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1752	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4744	tasklist.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 3484	2932	a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969.exe	84
PID 2932 wrote to memory of 3484	2932	a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969.exe	84
PID 2932 wrote to memory of 3484	2932	a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969.exe	84
PID 2932 wrote to memory of 1940	2932	a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969.exe	85
PID 2932 wrote to memory of 1940	2932	a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969.exe	85
PID 2932 wrote to memory of 1940	2932	a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969.exe	85
PID 1940 wrote to memory of 1752	1940	cmd.exe	87
PID 1940 wrote to memory of 1752	1940	cmd.exe	87
PID 1940 wrote to memory of 1752	1940	cmd.exe	87
PID 1940 wrote to memory of 3916	1940	cmd.exe	88
PID 1940 wrote to memory of 3916	1940	cmd.exe	88
PID 1940 wrote to memory of 3916	1940	cmd.exe	88
PID 3484 wrote to memory of 3416	3484	11244.exe	89
PID 3484 wrote to memory of 3416	3484	11244.exe	89
PID 3484 wrote to memory of 3416	3484	11244.exe	89
PID 3484 wrote to memory of 3416	3484	11244.exe	89
PID 3416 wrote to memory of 3160	3416	EhStorAuthn.exe	90
PID 3416 wrote to memory of 3160	3416	EhStorAuthn.exe	90
PID 3416 wrote to memory of 3160	3416	EhStorAuthn.exe	90
PID 3812 wrote to memory of 4100	3812	WScript.exe	96
PID 3812 wrote to memory of 4100	3812	WScript.exe	96
PID 4100 wrote to memory of 976	4100	cmd.exe	98
PID 4100 wrote to memory of 976	4100	cmd.exe	98
PID 4100 wrote to memory of 1212	4100	cmd.exe	99
PID 4100 wrote to memory of 1212	4100	cmd.exe	99
PID 1212 wrote to memory of 4744	1212	cmd.exe	100
PID 1212 wrote to memory of 4744	1212	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969.exe
"C:\Users\Admin\AppData\Local\Temp\a4b705baac8bb2c0d2bc111eae9735fb8586d6d1dab050f3c89fb12589470969.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11244.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11244.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Loads dropped DLL
  - Maps connected drives based on registry
  - Suspicious use of WriteProcessMemory
  PID:3484
- - C:\Windows\SysWOW64\EhStorAuthn.exe
    "C:\Windows\System32\EhStorAuthn.exe"
    3⤵
    - Loads dropped DLL
    - Maps connected drives based on registry
    - Drops file in System32 directory
    - Checks processor information in registry
    - Suspicious use of WriteProcessMemory
    PID:3416
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 5 /tn "Maintenance" /tr "C:\Users\%USERNAME%\AppData\Local\z_%USERNAME%\%USERNAME%.vbs" /F
      4⤵
      Creates scheduled task(s)
      PID:3160
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\del.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1940
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:1752
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
    3⤵
    PID:3916

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Local\z_Admin\Admin.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3812
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Local\z_Admin\Admin.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4100
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:976
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c tasklist /NH /FI "IMAGENAME eq EhStorAuthn.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1212
  - - C:\Windows\system32\tasklist.exe
      tasklist /NH /FI "IMAGENAME eq EhStorAuthn.exe"
      4⤵
      Enumerates processes with tasklist
      Suspicious use of AdjustPrivilegeToken
      PID:4744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Scheduled Task/Job

Privilege Escalation

Scheduled Task/Job

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Process Discovery

T1057

Query Registry

Remote System Discovery

T1018

System Information Discovery