saintbot | 4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31

General

Target

4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe
Size

30KB
MD5

7d704111c6763028027b7c7991bd0ae6
SHA1

68a325bb1387f34aa5fc3d97b88c8fe546b6fc5f
SHA256

4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31
SHA512

aa03849dc897afc238a0af90e38c138b6d7e66fbbee4c8d7680f8cdda26ee3a4eca101ac51109b60ae907043c3f4c9cf0b75ad1157839e1263dfe347ad53a8f4
SSDEEP

768:lw+62M+dAbo+G9nARCQ/WZYQHx1DvGSi2zCb1DuIRsxj3zI:lwQM+ib6Ar/unHjDv02ub1KF

Score

10^/10

saintbot discovery dropper persistence

Malware Config

Signatures

SaintBot
Saint Bot is a malware dropper being used to deliver secondary payloads such as information stealers.
dropper saintbot

SaintBot payload 4 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11348.exe	family_saintbot
behavioral2/memory/3980-16-0x0000000000570000-0x000000000057B000-memory.dmp	family_saintbot
behavioral2/memory/3980-18-0x0000000000570000-0x000000000057B000-memory.dmp	family_saintbot
behavioral2/memory/3980-19-0x0000000000570000-0x000000000057B000-memory.dmp	family_saintbot

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe

Drops startup file 2 IoCs

Processes:

4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe11348.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11348.exe	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11348.exe	11348.exe

Executes dropped EXE 1 IoCs

Processes:

11348.exe

pid process

1536 11348.exe
Loads dropped DLL 2 IoCs

Processes:

11348.exeEhStorAuthn.exe

pid process

1536 11348.exe
3980 EhStorAuthn.exe

pid	process
1536	11348.exe

pid	process
1536	11348.exe
3980	EhStorAuthn.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

EhStorAuthn.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\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

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

11348.exeEhStorAuthn.exe4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	11348.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	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	11348.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

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

T1082

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

3728 schtasks.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

4968 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

11348.exe

pid process

1536 11348.exe
1536 11348.exe

pid	process
3728	schtasks.exe

pid	process
4968	PING.EXE

pid	process
1536	11348.exe
1536	11348.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.execmd.exe11348.exeEhStorAuthn.exe

description	pid	process	target process
PID 4624 wrote to memory of 1536	4624	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	11348.exe
PID 4624 wrote to memory of 1536	4624	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	11348.exe
PID 4624 wrote to memory of 1536	4624	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	11348.exe
PID 4624 wrote to memory of 3872	4624	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	cmd.exe
PID 4624 wrote to memory of 3872	4624	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	cmd.exe
PID 4624 wrote to memory of 3872	4624	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	cmd.exe
PID 3872 wrote to memory of 4968	3872	cmd.exe	PING.EXE
PID 3872 wrote to memory of 4968	3872	cmd.exe	PING.EXE
PID 3872 wrote to memory of 4968	3872	cmd.exe	PING.EXE
PID 3872 wrote to memory of 3524	3872	cmd.exe	cmd.exe
PID 3872 wrote to memory of 3524	3872	cmd.exe	cmd.exe
PID 3872 wrote to memory of 3524	3872	cmd.exe	cmd.exe
PID 1536 wrote to memory of 3980	1536	11348.exe	EhStorAuthn.exe
PID 1536 wrote to memory of 3980	1536	11348.exe	EhStorAuthn.exe
PID 1536 wrote to memory of 3980	1536	11348.exe	EhStorAuthn.exe
PID 1536 wrote to memory of 3980	1536	11348.exe	EhStorAuthn.exe
PID 3980 wrote to memory of 3728	3980	EhStorAuthn.exe	schtasks.exe
PID 3980 wrote to memory of 3728	3980	EhStorAuthn.exe	schtasks.exe
PID 3980 wrote to memory of 3728	3980	EhStorAuthn.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe
"C:\Users\Admin\AppData\Local\Temp\4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11348.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11348.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:1536
- - 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:3980
  - - 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:3728
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\del.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3872
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:4968
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
    3⤵
    PID:3524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\z_Admin\wallpaper.mp4

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11348.exe

Filesize
30KB

MD5
7d704111c6763028027b7c7991bd0ae6

SHA1
68a325bb1387f34aa5fc3d97b88c8fe546b6fc5f

SHA256
4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31

SHA512
aa03849dc897afc238a0af90e38c138b6d7e66fbbee4c8d7680f8cdda26ee3a4eca101ac51109b60ae907043c3f4c9cf0b75ad1157839e1263dfe347ad53a8f4

Download Submit
C:\Users\Admin\AppData\Roaming\del.bat

Filesize
170B

MD5
bffccd22c0dcfd7558b2be4bec017238

SHA1
eef0f72790d07aab8743602743d7ba6a8c2efa2d

SHA256
8ff3b8e7b2fc536686253357d6fbcbf8fb223fd6034add0b180141ad82edcf4a

SHA512
ab649143b899e227bbd4c60cc7ef907865dfc76f65d8b98d200bb60de9e82930fff1f19e71403e009f803bbf48717213b8b6dbba30e54ca7b7468ee5a748f7f7

Download Submit
memory/3980-16-0x0000000000570000-0x000000000057B000-memory.dmp

Filesize
44KB

Download
memory/3980-18-0x0000000000570000-0x000000000057B000-memory.dmp

Filesize
44KB

Download
memory/3980-19-0x0000000000570000-0x000000000057B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads