saintbot | b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3

General

Target

b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe
Size

286KB
MD5

ae37c9bfa13df2a6353039fe6e7a54e7
SHA1

c99c15bd925d9364b5101f490bdcb05e3227b2cf
SHA256

b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3
SHA512

e3479b662caac02be072fcec2ac1bba54c3a0a2d78df62d747708f42fc67f8cabe1242180bee744895e1f24506c03bfda337e37e080ee7bb3e44e77de451fdde
SSDEEP

6144:z8VeNC4tR5LRKate2VeurF6sdLDpvadak:z8VyC4lFKZ2VlpHaYk

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 9 IoCs

resource	yara_rule
behavioral2/memory/3980-1-0x00000000019C0000-0x0000000001AC0000-memory.dmp	family_saintbot
behavioral2/memory/3980-2-0x00000000019B0000-0x00000000019B9000-memory.dmp	family_saintbot
behavioral2/memory/3980-3-0x0000000000400000-0x0000000001782000-memory.dmp	family_saintbot
behavioral2/memory/2908-23-0x0000000000400000-0x0000000001782000-memory.dmp	family_saintbot
behavioral2/memory/3980-24-0x0000000000400000-0x0000000001782000-memory.dmp	family_saintbot
behavioral2/memory/2908-27-0x0000000000400000-0x0000000001782000-memory.dmp	family_saintbot
behavioral2/memory/1804-28-0x00000000004E0000-0x00000000004EB000-memory.dmp	family_saintbot
behavioral2/memory/1804-31-0x00000000004E0000-0x00000000004EB000-memory.dmp	family_saintbot
behavioral2/memory/1804-32-0x00000000004E0000-0x00000000004EB000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\37798.exe	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\37798.exe	37798.exe

Executes dropped EXE 1 IoCs

pid	Process
2908	37798.exe

Loads dropped DLL 2 IoCs

pid	Process
2908	37798.exe
1804	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-1-5-21-399997616-3400990511-967324271-1000\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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	37798.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	37798.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

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
2488	3980	WerFault.exe	85
1808	2908	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

T1082

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

pid	Process
4988	schtasks.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4692	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2908	37798.exe
2908	37798.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3980 wrote to memory of 2908	3980	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	94
PID 3980 wrote to memory of 2908	3980	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	94
PID 3980 wrote to memory of 2908	3980	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	94
PID 3980 wrote to memory of 2916	3980	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	95
PID 3980 wrote to memory of 2916	3980	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	95
PID 3980 wrote to memory of 2916	3980	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	95
PID 2916 wrote to memory of 4692	2916	cmd.exe	99
PID 2916 wrote to memory of 4692	2916	cmd.exe	99
PID 2916 wrote to memory of 4692	2916	cmd.exe	99
PID 2916 wrote to memory of 4352	2916	cmd.exe	101
PID 2916 wrote to memory of 4352	2916	cmd.exe	101
PID 2916 wrote to memory of 4352	2916	cmd.exe	101
PID 2908 wrote to memory of 1804	2908	37798.exe	104
PID 2908 wrote to memory of 1804	2908	37798.exe	104
PID 2908 wrote to memory of 1804	2908	37798.exe	104
PID 2908 wrote to memory of 1804	2908	37798.exe	104
PID 1804 wrote to memory of 4988	1804	EhStorAuthn.exe	107
PID 1804 wrote to memory of 4988	1804	EhStorAuthn.exe	107
PID 1804 wrote to memory of 4988	1804	EhStorAuthn.exe	107

C:\Users\Admin\AppData\Local\Temp\b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe
"C:\Users\Admin\AppData\Local\Temp\b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:3980
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\37798.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\37798.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:2908
- - 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:1804
  - - 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:4988
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2908 -s 616
    3⤵
    - Program crash
    PID:1808
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\del.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:4692
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
    3⤵
    PID:4352
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3980 -s 896
  2⤵
  - Program crash
  PID:2488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3980 -ip 3980
1⤵
PID:1432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2908 -ip 2908
1⤵
PID:4724

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\37798.exe

Filesize
286KB

MD5
ae37c9bfa13df2a6353039fe6e7a54e7

SHA1
c99c15bd925d9364b5101f490bdcb05e3227b2cf

SHA256
b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3

SHA512
e3479b662caac02be072fcec2ac1bba54c3a0a2d78df62d747708f42fc67f8cabe1242180bee744895e1f24506c03bfda337e37e080ee7bb3e44e77de451fdde

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

Filesize
170B

MD5
59567a02eaa7e28d9286b9a3bd7fc87a

SHA1
c16234298467868b32af7eb3a61207c6b11b3b92

SHA256
61999e63b40cc7048f24f290a80a87c02f6306131d08a505d751b28cde3fab59

SHA512
d6e76110c4784ab6a4648724ba76bb165b9cdff1cd747f68c8abbb2b8a6450d40008e844815a50538391ce789faaeac11038a3701c0e414513c05c79e8a417f5

Download Submit
memory/1804-32-0x00000000004E0000-0x00000000004EB000-memory.dmp

Filesize
44KB

Download
memory/1804-31-0x00000000004E0000-0x00000000004EB000-memory.dmp

Filesize
44KB

Download
memory/1804-28-0x00000000004E0000-0x00000000004EB000-memory.dmp

Filesize
44KB

Download
memory/2908-23-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download
memory/2908-27-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download
memory/2908-22-0x0000000001990000-0x0000000001A90000-memory.dmp

Filesize
1024KB

Download
memory/3980-24-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download
memory/3980-1-0x00000000019C0000-0x0000000001AC0000-memory.dmp

Filesize
1024KB

Download
memory/3980-3-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download
memory/3980-2-0x00000000019B0000-0x00000000019B9000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads