saintbot | e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2

System Information Discovery

Processes:

e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe

Drops startup file 2 IoCs

Processes:

Microsoft Edge.exee0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Edge.exe	Microsoft Edge.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Edge.exe	e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe

Executes dropped EXE 1 IoCs

Processes:

Microsoft Edge.exe

pid process

1852 Microsoft Edge.exe
Loads dropped DLL 2 IoCs

Processes:

Microsoft Edge.exeEhStorAuthn.exe

pid process

1852 Microsoft Edge.exe
1288 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

pid	process
1852	Microsoft Edge.exe

pid	process
1852	Microsoft Edge.exe
1288	EhStorAuthn.exe

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

Processes:

EhStorAuthn.exee0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exeMicrosoft Edge.exe

description	ioc	process
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	e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	Microsoft Edge.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	Microsoft Edge.exe

Drops file in System32 directory 1 IoCs

Processes:

EhStorAuthn.exe

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

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

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid	pid_target	process	target process
1776	4960	WerFault.exe	e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe
4024	1852	WerFault.exe	Microsoft Edge.exe

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

Processes:

EhStorAuthn.exe

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
T1053

Processes:

schtasks.exe

pid process

5064 schtasks.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

864 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Microsoft Edge.exe

pid process

1852 Microsoft Edge.exe
1852 Microsoft Edge.exe

pid	process
5064	schtasks.exe

pid	process
864	PING.EXE

pid	process
1852	Microsoft Edge.exe
1852	Microsoft Edge.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.execmd.exeMicrosoft Edge.exeEhStorAuthn.exe

description	pid	process	target process
PID 4960 wrote to memory of 1852	4960	e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe	Microsoft Edge.exe
PID 4960 wrote to memory of 1852	4960	e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe	Microsoft Edge.exe
PID 4960 wrote to memory of 1852	4960	e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe	Microsoft Edge.exe
PID 4960 wrote to memory of 1552	4960	e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe	cmd.exe
PID 4960 wrote to memory of 1552	4960	e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe	cmd.exe
PID 4960 wrote to memory of 1552	4960	e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe	cmd.exe
PID 1552 wrote to memory of 864	1552	cmd.exe	PING.EXE
PID 1552 wrote to memory of 864	1552	cmd.exe	PING.EXE
PID 1552 wrote to memory of 864	1552	cmd.exe	PING.EXE
PID 1552 wrote to memory of 3824	1552	cmd.exe	cmd.exe
PID 1552 wrote to memory of 3824	1552	cmd.exe	cmd.exe
PID 1552 wrote to memory of 3824	1552	cmd.exe	cmd.exe
PID 1852 wrote to memory of 1288	1852	Microsoft Edge.exe	EhStorAuthn.exe
PID 1852 wrote to memory of 1288	1852	Microsoft Edge.exe	EhStorAuthn.exe
PID 1852 wrote to memory of 1288	1852	Microsoft Edge.exe	EhStorAuthn.exe
PID 1852 wrote to memory of 1288	1852	Microsoft Edge.exe	EhStorAuthn.exe
PID 1288 wrote to memory of 5064	1288	EhStorAuthn.exe	schtasks.exe
PID 1288 wrote to memory of 5064	1288	EhStorAuthn.exe	schtasks.exe
PID 1288 wrote to memory of 5064	1288	EhStorAuthn.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe
"C:\Users\Admin\AppData\Local\Temp\e0c46e23bd1b5b96123e0c64914484bbfae7a7ad13cbd45184035d4c0f8a10a2.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:4960

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Edge.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Edge.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:1852

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:1288

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:5064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1852 -s 648
3⤵
- Program crash
PID:4024

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\del.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:1552

C:\Windows\SysWOW64\PING.EXE
ping localhost -n 3
3⤵
- Runs ping.exe
PID:864

C:\Windows\SysWOW64\cmd.exe
cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
3⤵
PID:3824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 1140
2⤵
- Program crash
PID:1776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4960 -ip 4960
1⤵
PID:1364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1852 -ip 1852
1⤵
PID:2672

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=4072 --field-trial-handle=2972,i,4036376905309803364,5412922217215781933,262144 --variations-seed-version /prefetch:8
1⤵
PID:5020

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

4

System Information Discovery

4

Peripheral Device Discovery

T1120

Remote System Discovery