saintbot | c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\29594.exe	c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\29594.exe	29594.exe

Executes dropped EXE 1 IoCs

pid	Process
4812	29594.exe

Loads dropped DLL 2 IoCs

pid	Process
4812	29594.exe
4372	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

T1012

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	29594.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	29594.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a.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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1492	1568	WerFault.exe	90
3936	4812	WerFault.exe	94

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

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
348	schtasks.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3284	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4812	29594.exe
4812	29594.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1568 wrote to memory of 4812	1568	c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a.exe	94
PID 1568 wrote to memory of 4812	1568	c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a.exe	94
PID 1568 wrote to memory of 4812	1568	c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a.exe	94
PID 1568 wrote to memory of 4532	1568	c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a.exe	95
PID 1568 wrote to memory of 4532	1568	c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a.exe	95
PID 1568 wrote to memory of 4532	1568	c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a.exe	95
PID 4532 wrote to memory of 3284	4532	cmd.exe	99
PID 4532 wrote to memory of 3284	4532	cmd.exe	99
PID 4532 wrote to memory of 3284	4532	cmd.exe	99
PID 4532 wrote to memory of 4408	4532	cmd.exe	101
PID 4532 wrote to memory of 4408	4532	cmd.exe	101
PID 4532 wrote to memory of 4408	4532	cmd.exe	101
PID 4812 wrote to memory of 4372	4812	29594.exe	107
PID 4812 wrote to memory of 4372	4812	29594.exe	107
PID 4812 wrote to memory of 4372	4812	29594.exe	107
PID 4812 wrote to memory of 4372	4812	29594.exe	107
PID 4372 wrote to memory of 348	4372	EhStorAuthn.exe	113
PID 4372 wrote to memory of 348	4372	EhStorAuthn.exe	113
PID 4372 wrote to memory of 348	4372	EhStorAuthn.exe	113

C:\Users\Admin\AppData\Local\Temp\c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a.exe
"C:\Users\Admin\AppData\Local\Temp\c33a905e513005cee9071ed10933b8e6a11be2335755660e3f7b2adf554f704a.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:1568
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\29594.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\29594.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Loads dropped DLL
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4812
- - 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:4372
  - - 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:348
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 616
    3⤵
    - Program crash
    PID:3936
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\del.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4532
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:3284
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
    3⤵
    PID:4408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1568 -s 796
  2⤵
  - Program crash
  PID:1492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1568 -ip 1568
1⤵
PID:3184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4812 -ip 4812
1⤵
PID:2484

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3988 --field-trial-handle=2256,i,18272763564106695635,11201593968620719822,262144 --variations-seed-version /prefetch:8
1⤵
PID:1104

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

Query Registry

Remote System Discovery

T1018

System Information Discovery

4