saintbot | db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\47008.exe	47008.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\47008.exe	db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34.exe

Executes dropped EXE 1 IoCs

pid	Process
5112	47008.exe

Loads dropped DLL 2 IoCs

pid	Process
5112	47008.exe
2988	EhStorAuthn.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Users\\Admin\\AppData\\Local\\z_Admin\\Admin.vbs"	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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	47008.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	47008.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	db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34.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
4584	4180	WerFault.exe	85
3508	5112	WerFault.exe	93

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
5104	schtasks.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1680	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5112	47008.exe
5112	47008.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4180 wrote to memory of 5112	4180	db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34.exe	93
PID 4180 wrote to memory of 5112	4180	db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34.exe	93
PID 4180 wrote to memory of 5112	4180	db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34.exe	93
PID 4180 wrote to memory of 1892	4180	db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34.exe	94
PID 4180 wrote to memory of 1892	4180	db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34.exe	94
PID 4180 wrote to memory of 1892	4180	db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34.exe	94
PID 1892 wrote to memory of 1680	1892	cmd.exe	98
PID 1892 wrote to memory of 1680	1892	cmd.exe	98
PID 1892 wrote to memory of 1680	1892	cmd.exe	98
PID 1892 wrote to memory of 2816	1892	cmd.exe	101
PID 1892 wrote to memory of 2816	1892	cmd.exe	101
PID 1892 wrote to memory of 2816	1892	cmd.exe	101
PID 5112 wrote to memory of 2988	5112	47008.exe	104
PID 5112 wrote to memory of 2988	5112	47008.exe	104
PID 5112 wrote to memory of 2988	5112	47008.exe	104
PID 5112 wrote to memory of 2988	5112	47008.exe	104
PID 2988 wrote to memory of 5104	2988	EhStorAuthn.exe	107
PID 2988 wrote to memory of 5104	2988	EhStorAuthn.exe	107
PID 2988 wrote to memory of 5104	2988	EhStorAuthn.exe	107

C:\Users\Admin\AppData\Local\Temp\db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34.exe
"C:\Users\Admin\AppData\Local\Temp\db8975fd6c04a7d3790eb73ab8e95b6dbf6c9d65ad5c6a6d3c862d0284f87c34.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:4180
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\47008.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\47008.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:5112
- - C:\Windows\SysWOW64\EhStorAuthn.exe
    "C:\Windows\System32\EhStorAuthn.exe"
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Maps connected drives based on registry
    - Drops file in System32 directory
    - Checks processor information in registry
    - Suspicious use of WriteProcessMemory
    PID:2988
  - - 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:5104
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5112 -s 616
    3⤵
    - Program crash
    PID:3508
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\del.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1892
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:1680
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
    3⤵
    PID:2816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 912
  2⤵
  - Program crash
  PID:4584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4180 -ip 4180
1⤵
PID:2064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5112 -ip 5112
1⤵
PID:1548

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

Remote System Discovery

T1018

System Information Discovery