saintbot | 4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2

General

Target

4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe
Size

243KB
MD5

fe6663b00d94a8106c07b4a951522266
SHA1

24492ca47b178e1990c4e5bd684547bb62bfad7a
SHA256

4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2
SHA512

9f5dcb078ea1dd32b4208f077571bd867fdf1beb81405df094e676751b47bdf3f619e16178afd21f2d030ba862ddf272074c931674834bea532273bbfef58388
SSDEEP

6144:EoTtCga1oYMLQioa3Q7JC2U38hO0YTPJx:Eo0ga1w3oa3yf9k1Jx

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 10 IoCs

Processes:

resource	yara_rule
behavioral2/memory/5044-2-0x00000000001C0000-0x00000000001C9000-memory.dmp	family_saintbot
behavioral2/memory/5044-3-0x0000000000400000-0x000000000046A000-memory.dmp	family_saintbot
behavioral2/memory/1572-22-0x0000000000480000-0x0000000000580000-memory.dmp	family_saintbot
behavioral2/memory/1572-23-0x0000000000400000-0x000000000046A000-memory.dmp	family_saintbot
behavioral2/memory/5044-24-0x0000000000400000-0x000000000046A000-memory.dmp	family_saintbot
behavioral2/memory/1572-27-0x0000000000400000-0x000000000046A000-memory.dmp	family_saintbot
behavioral2/memory/2948-28-0x0000000000F20000-0x0000000000F2B000-memory.dmp	family_saintbot
behavioral2/memory/1572-29-0x0000000000400000-0x000000000046A000-memory.dmp	family_saintbot
behavioral2/memory/2948-31-0x0000000000F20000-0x0000000000F2B000-memory.dmp	family_saintbot
behavioral2/memory/2948-32-0x0000000000F20000-0x0000000000F2B000-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:

4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe

Drops startup file 2 IoCs

Processes:

4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe45666.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\45666.exe	4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\45666.exe	45666.exe

Executes dropped EXE 1 IoCs

Processes:

45666.exe

pid process

1572 45666.exe
Loads dropped DLL 2 IoCs

Processes:

45666.exeEhStorAuthn.exe

pid process

1572 45666.exe
2948 EhStorAuthn.exe

pid	process
1572	45666.exe

pid	process
1572	45666.exe
2948	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:

EhStorAuthn.exe4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe45666.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	EhStorAuthn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	45666.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	45666.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	EhStorAuthn.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
3852	5044	WerFault.exe	4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe
4436	1572	WerFault.exe	45666.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

4372 schtasks.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

4492 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

45666.exe

pid process

1572 45666.exe
1572 45666.exe

pid	process
4372	schtasks.exe

pid	process
4492	PING.EXE

pid	process
1572	45666.exe
1572	45666.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.execmd.exe45666.exeEhStorAuthn.exe

description	pid	process	target process
PID 5044 wrote to memory of 1572	5044	4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe	45666.exe
PID 5044 wrote to memory of 1572	5044	4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe	45666.exe
PID 5044 wrote to memory of 1572	5044	4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe	45666.exe
PID 5044 wrote to memory of 4608	5044	4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe	cmd.exe
PID 5044 wrote to memory of 4608	5044	4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe	cmd.exe
PID 5044 wrote to memory of 4608	5044	4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe	cmd.exe
PID 4608 wrote to memory of 4492	4608	cmd.exe	PING.EXE
PID 4608 wrote to memory of 4492	4608	cmd.exe	PING.EXE
PID 4608 wrote to memory of 4492	4608	cmd.exe	PING.EXE
PID 4608 wrote to memory of 4040	4608	cmd.exe	cmd.exe
PID 4608 wrote to memory of 4040	4608	cmd.exe	cmd.exe
PID 4608 wrote to memory of 4040	4608	cmd.exe	cmd.exe
PID 1572 wrote to memory of 2948	1572	45666.exe	EhStorAuthn.exe
PID 1572 wrote to memory of 2948	1572	45666.exe	EhStorAuthn.exe
PID 1572 wrote to memory of 2948	1572	45666.exe	EhStorAuthn.exe
PID 1572 wrote to memory of 2948	1572	45666.exe	EhStorAuthn.exe
PID 2948 wrote to memory of 4372	2948	EhStorAuthn.exe	schtasks.exe
PID 2948 wrote to memory of 4372	2948	EhStorAuthn.exe	schtasks.exe
PID 2948 wrote to memory of 4372	2948	EhStorAuthn.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe
"C:\Users\Admin\AppData\Local\Temp\4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\45666.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\45666.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:1572
- - 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:2948
  - - 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:4372
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1572 -s 624
    3⤵
    - Program crash
    PID:4436
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\del.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4608
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:4492
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
    3⤵
    PID:4040
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 1140
  2⤵
  - Program crash
  PID:3852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5044 -ip 5044
1⤵
PID:1196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1572 -ip 1572
1⤵
PID:452

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\45666.exe

Filesize
243KB

MD5
fe6663b00d94a8106c07b4a951522266

SHA1
24492ca47b178e1990c4e5bd684547bb62bfad7a

SHA256
4c8a433ed99cc4b6994b2e1df59eb171f326373ba100a3653eb37e8a8ee2e6f2

SHA512
9f5dcb078ea1dd32b4208f077571bd867fdf1beb81405df094e676751b47bdf3f619e16178afd21f2d030ba862ddf272074c931674834bea532273bbfef58388

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

Filesize
170B

MD5
32248b69d36e554d503eaf519da833bb

SHA1
855a2bc8e3e4fa7d09bc91a8d9673e5db2da250b

SHA256
b084852157912c350ea4ed104da51b09b74bfb46d85d8bac20ef4a0fa54ca5cd

SHA512
662168203f2e1a6a714341b57c4acc7fa2bb1e61fb7c3584d0780d8ac1b015b9f46acf12c8f47debbbe36e9901b1d9db5a326df91239c00c198bb56c9f9df59e

Download Submit
memory/1572-23-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/1572-22-0x0000000000480000-0x0000000000580000-memory.dmp

Filesize
1024KB

Download
memory/1572-27-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/1572-29-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2948-28-0x0000000000F20000-0x0000000000F2B000-memory.dmp

Filesize
44KB

Download
memory/2948-31-0x0000000000F20000-0x0000000000F2B000-memory.dmp

Filesize
44KB

Download
memory/2948-32-0x0000000000F20000-0x0000000000F2B000-memory.dmp

Filesize
44KB

Download
memory/5044-3-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/5044-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/5044-24-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/5044-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads