saintbot | ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03

General

Target

ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.exe
Size

235KB
MD5

247951ff7b519fa8d39ef07d33e0ba5b
SHA1

cf4587b6015d2a00c26a369339504595a266401f
SHA256

ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03
SHA512

6185aeae2dbb154ba4fef27eb7dc71a1e6a8ba7e1ca69cbbe5aeb9588b29d95608e32e9f46f8d60183584903f3bbffbd5a603f5717a84f18ad81bb5088ee7bd7
SSDEEP

3072:ZIWl+L9yTYPc4cW/QgB3JibTVLHvFKF4uzYiP0c21srymY5rc:ZI/L9GYp/xB49vFKGuzYiP0c8q0

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 8 IoCs

resource	yara_rule
behavioral2/memory/2732-2-0x0000000000AA0000-0x0000000000AA9000-memory.dmp	family_saintbot
behavioral2/memory/2732-3-0x0000000000400000-0x0000000000A14000-memory.dmp	family_saintbot
behavioral2/memory/2244-23-0x0000000000400000-0x0000000000A14000-memory.dmp	family_saintbot
behavioral2/memory/2732-24-0x0000000000400000-0x0000000000A14000-memory.dmp	family_saintbot
behavioral2/memory/2244-27-0x0000000000400000-0x0000000000A14000-memory.dmp	family_saintbot
behavioral2/memory/3280-28-0x00000000008B0000-0x00000000008BB000-memory.dmp	family_saintbot
behavioral2/memory/3280-31-0x00000000008B0000-0x00000000008BB000-memory.dmp	family_saintbot
behavioral2/memory/3280-32-0x00000000008B0000-0x00000000008BB000-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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\53747.exe	ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\53747.exe	53747.exe

Executes dropped EXE 1 IoCs

pid	Process
2244	53747.exe

Loads dropped DLL 2 IoCs

pid	Process
2244	53747.exe
3280	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-1-5-21-1497073144-2389943819-3385106915-1000\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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	53747.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	53747.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	ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.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
4344	2732	WerFault.exe	84
2528	2244	WerFault.exe	85

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
3360	schtasks.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
232	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2244	53747.exe
2244	53747.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2732 wrote to memory of 2244	2732	ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.exe	85
PID 2732 wrote to memory of 2244	2732	ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.exe	85
PID 2732 wrote to memory of 2244	2732	ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.exe	85
PID 2732 wrote to memory of 4636	2732	ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.exe	86
PID 2732 wrote to memory of 4636	2732	ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.exe	86
PID 2732 wrote to memory of 4636	2732	ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.exe	86
PID 4636 wrote to memory of 232	4636	cmd.exe	91
PID 4636 wrote to memory of 232	4636	cmd.exe	91
PID 4636 wrote to memory of 232	4636	cmd.exe	91
PID 4636 wrote to memory of 5060	4636	cmd.exe	96
PID 4636 wrote to memory of 5060	4636	cmd.exe	96
PID 4636 wrote to memory of 5060	4636	cmd.exe	96
PID 2244 wrote to memory of 3280	2244	53747.exe	100
PID 2244 wrote to memory of 3280	2244	53747.exe	100
PID 2244 wrote to memory of 3280	2244	53747.exe	100
PID 2244 wrote to memory of 3280	2244	53747.exe	100
PID 3280 wrote to memory of 3360	3280	EhStorAuthn.exe	103
PID 3280 wrote to memory of 3360	3280	EhStorAuthn.exe	103
PID 3280 wrote to memory of 3360	3280	EhStorAuthn.exe	103

C:\Users\Admin\AppData\Local\Temp\ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.exe
"C:\Users\Admin\AppData\Local\Temp\ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\53747.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\53747.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:2244
- - 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:3280
  - - 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:3360
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2244 -s 616
    3⤵
    - Program crash
    PID:2528
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\del.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4636
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:232
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
    3⤵
    PID:5060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2732 -s 792
  2⤵
  - Program crash
  PID:4344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2732 -ip 2732
1⤵
PID:3648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2244 -ip 2244
1⤵
PID:404

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\53747.exe

Filesize
235KB

MD5
247951ff7b519fa8d39ef07d33e0ba5b

SHA1
cf4587b6015d2a00c26a369339504595a266401f

SHA256
ec3c0afccfef11f753a408c859d98bbba4841e87f7f1a48573270c0d82252b03

SHA512
6185aeae2dbb154ba4fef27eb7dc71a1e6a8ba7e1ca69cbbe5aeb9588b29d95608e32e9f46f8d60183584903f3bbffbd5a603f5717a84f18ad81bb5088ee7bd7

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

Filesize
170B

MD5
9b1143ff58ed5cb62d5217076eaf0964

SHA1
f67b957fbfd107aeaed1f48733e13c3dc7d6b1af

SHA256
5e2151e781bf9cf36e4fc6a6d13d4686fa6375edfbe7143b1a3a40e0a4415556

SHA512
7f63336f33ea624a04984855b8d9e541a75c18dea067b92d153a79750c23716743e112f198dc65ba2ca1ddc5a7ad7bb5eb0076de54fbdba27862592b16cbc095

Download Submit
memory/2244-23-0x0000000000400000-0x0000000000A14000-memory.dmp

Filesize
6.1MB

Download
memory/2244-22-0x0000000000B60000-0x0000000000C60000-memory.dmp

Filesize
1024KB

Download
memory/2244-27-0x0000000000400000-0x0000000000A14000-memory.dmp

Filesize
6.1MB

Download
memory/2732-3-0x0000000000400000-0x0000000000A14000-memory.dmp

Filesize
6.1MB

Download
memory/2732-1-0x0000000000C00000-0x0000000000D00000-memory.dmp

Filesize
1024KB

Download
memory/2732-24-0x0000000000400000-0x0000000000A14000-memory.dmp

Filesize
6.1MB

Download
memory/2732-2-0x0000000000AA0000-0x0000000000AA9000-memory.dmp

Filesize
36KB

Download
memory/3280-28-0x00000000008B0000-0x00000000008BB000-memory.dmp

Filesize
44KB

Download
memory/3280-31-0x00000000008B0000-0x00000000008BB000-memory.dmp

Filesize
44KB

Download
memory/3280-32-0x00000000008B0000-0x00000000008BB000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads