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

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
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Office Proof (English) 2010.exe	family_saintbot
behavioral1/memory/2772-20-0x00000000000C0000-0x00000000000CB000-memory.dmp	family_saintbot
behavioral1/memory/2772-22-0x00000000000C0000-0x00000000000CB000-memory.dmp	family_saintbot
behavioral1/memory/2772-23-0x00000000000C0000-0x00000000000CB000-memory.dmp	family_saintbot

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1216 cmd.exe

pid	process
1216	cmd.exe

Drops startup file 2 IoCs

Processes:

4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exeMicrosoft Office Proof (English) 2010.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Office Proof (English) 2010.exe	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Office Proof (English) 2010.exe	Microsoft Office Proof (English) 2010.exe

Executes dropped EXE 1 IoCs

Processes:

Microsoft Office Proof (English) 2010.exe

pid process

1832 Microsoft Office Proof (English) 2010.exe
Loads dropped DLL 3 IoCs

Processes:

4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exeMicrosoft Office Proof (English) 2010.exeEhStorAuthn.exe

pid process

1720 4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe
1832 Microsoft Office Proof (English) 2010.exe
2772 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
1832	Microsoft Office Proof (English) 2010.exe

pid	process
1720	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe
1832	Microsoft Office Proof (English) 2010.exe
2772	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

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Microsoft Office Proof (English) 2010.exeEhStorAuthn.exe4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Microsoft Office Proof (English) 2010.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	Microsoft Office Proof (English) 2010.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

2520 schtasks.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2644 PING.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

Microsoft Office Proof (English) 2010.exe

pid process

1832 Microsoft Office Proof (English) 2010.exe

pid	process
2520	schtasks.exe

pid	process
2644	PING.EXE

pid	process
1832	Microsoft Office Proof (English) 2010.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.execmd.exeMicrosoft Office Proof (English) 2010.exeEhStorAuthn.exe

description	pid	process	target process
PID 1720 wrote to memory of 1832	1720	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	Microsoft Office Proof (English) 2010.exe
PID 1720 wrote to memory of 1832	1720	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	Microsoft Office Proof (English) 2010.exe
PID 1720 wrote to memory of 1832	1720	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	Microsoft Office Proof (English) 2010.exe
PID 1720 wrote to memory of 1832	1720	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	Microsoft Office Proof (English) 2010.exe
PID 1720 wrote to memory of 1216	1720	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	cmd.exe
PID 1720 wrote to memory of 1216	1720	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	cmd.exe
PID 1720 wrote to memory of 1216	1720	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	cmd.exe
PID 1720 wrote to memory of 1216	1720	4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe	cmd.exe
PID 1216 wrote to memory of 2644	1216	cmd.exe	PING.EXE
PID 1216 wrote to memory of 2644	1216	cmd.exe	PING.EXE
PID 1216 wrote to memory of 2644	1216	cmd.exe	PING.EXE
PID 1216 wrote to memory of 2644	1216	cmd.exe	PING.EXE
PID 1216 wrote to memory of 2256	1216	cmd.exe	cmd.exe
PID 1216 wrote to memory of 2256	1216	cmd.exe	cmd.exe
PID 1216 wrote to memory of 2256	1216	cmd.exe	cmd.exe
PID 1216 wrote to memory of 2256	1216	cmd.exe	cmd.exe
PID 1832 wrote to memory of 2772	1832	Microsoft Office Proof (English) 2010.exe	EhStorAuthn.exe
PID 1832 wrote to memory of 2772	1832	Microsoft Office Proof (English) 2010.exe	EhStorAuthn.exe
PID 1832 wrote to memory of 2772	1832	Microsoft Office Proof (English) 2010.exe	EhStorAuthn.exe
PID 1832 wrote to memory of 2772	1832	Microsoft Office Proof (English) 2010.exe	EhStorAuthn.exe
PID 1832 wrote to memory of 2772	1832	Microsoft Office Proof (English) 2010.exe	EhStorAuthn.exe
PID 2772 wrote to memory of 2520	2772	EhStorAuthn.exe	schtasks.exe
PID 2772 wrote to memory of 2520	2772	EhStorAuthn.exe	schtasks.exe
PID 2772 wrote to memory of 2520	2772	EhStorAuthn.exe	schtasks.exe
PID 2772 wrote to memory of 2520	2772	EhStorAuthn.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe
"C:\Users\Admin\AppData\Local\Temp\4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Office Proof (English) 2010.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Office Proof (English) 2010.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:1832
- - 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:2772
  - - 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:2520
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Roaming\del.bat
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1216
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:2644
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
    3⤵
    PID:2256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
170B

MD5
bffccd22c0dcfd7558b2be4bec017238

SHA1
eef0f72790d07aab8743602743d7ba6a8c2efa2d

SHA256
8ff3b8e7b2fc536686253357d6fbcbf8fb223fd6034add0b180141ad82edcf4a

SHA512
ab649143b899e227bbd4c60cc7ef907865dfc76f65d8b98d200bb60de9e82930fff1f19e71403e009f803bbf48717213b8b6dbba30e54ca7b7468ee5a748f7f7

Download Submit
\Users\Admin\AppData\Local\z_Admin\wallpaper.mp4

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Office Proof (English) 2010.exe

Filesize
30KB

MD5
7d704111c6763028027b7c7991bd0ae6

SHA1
68a325bb1387f34aa5fc3d97b88c8fe546b6fc5f

SHA256
4b564861e1d0dad20f1ff952cab002a241be7f18339a54cdf52fc911eaab7b31

SHA512
aa03849dc897afc238a0af90e38c138b6d7e66fbbee4c8d7680f8cdda26ee3a4eca101ac51109b60ae907043c3f4c9cf0b75ad1157839e1263dfe347ad53a8f4

Download Submit
memory/2772-20-0x00000000000C0000-0x00000000000CB000-memory.dmp

Filesize
44KB

Download
memory/2772-22-0x00000000000C0000-0x00000000000CB000-memory.dmp

Filesize
44KB

Download
memory/2772-23-0x00000000000C0000-0x00000000000CB000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads