saintbot | b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42

General

Target

b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe
Size

269KB
MD5

e640bdb76d7b30cb9ca9250d5b6631e3
SHA1

0540792efa9eb7ecdcfce3340dc0be1204c1e8c8
SHA256

b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42
SHA512

0d9bbc8f82a212cbb92595f2d5e7e4e1bab00061286f04441dce4c383827e3d55a60afee4e1d52b2af4ded201c5c54c046a4065ca055cfa1448b807a4a4a2034
SSDEEP

3072:HWFdp+IajKk//6uu3icJ3QJiLK4DBOigIjbeirMnUMdE5R+l:2FdpH4KVd3bneIjbekMn9

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 11 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4592-1-0x0000000001790000-0x0000000001890000-memory.dmp	family_saintbot
behavioral2/memory/4592-2-0x00000000001C0000-0x00000000001C9000-memory.dmp	family_saintbot
behavioral2/memory/4592-3-0x0000000000400000-0x000000000177D000-memory.dmp	family_saintbot
behavioral2/memory/4216-20-0x00000000018A0000-0x00000000018A9000-memory.dmp	family_saintbot
behavioral2/memory/4216-21-0x0000000000400000-0x000000000177D000-memory.dmp	family_saintbot
behavioral2/memory/4592-22-0x0000000000400000-0x000000000177D000-memory.dmp	family_saintbot
behavioral2/memory/4216-25-0x0000000000400000-0x000000000177D000-memory.dmp	family_saintbot
behavioral2/memory/916-26-0x00000000008F0000-0x00000000008FC000-memory.dmp	family_saintbot
behavioral2/memory/4216-27-0x0000000000400000-0x000000000177D000-memory.dmp	family_saintbot
behavioral2/memory/916-29-0x00000000008F0000-0x00000000008FC000-memory.dmp	family_saintbot
behavioral2/memory/916-30-0x00000000008F0000-0x00000000008FC000-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:

b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe

Drops startup file 2 IoCs

Processes:

b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe41828.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\41828.exe	b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\41828.exe	41828.exe

Executes dropped EXE 1 IoCs

Processes:

41828.exe

pid process

4216 41828.exe
Loads dropped DLL 2 IoCs

Processes:

41828.exeEhStorAuthn.exe

pid process

4216 41828.exe
916 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
4216	41828.exe

pid	process
4216	41828.exe
916	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:

EhStorAuthn.exeb1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe41828.exe

description	ioc	process
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	b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	41828.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	41828.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
3636	4592	WerFault.exe	b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe
448	4216	WerFault.exe	41828.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EhStorAuthn.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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

3168 schtasks.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

5100 PING.EXE

pid	process
3168	schtasks.exe

pid	process
5100	PING.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.execmd.exe41828.exeEhStorAuthn.exe

description	pid	process	target process
PID 4592 wrote to memory of 4216	4592	b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe	41828.exe
PID 4592 wrote to memory of 4216	4592	b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe	41828.exe
PID 4592 wrote to memory of 4216	4592	b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe	41828.exe
PID 4592 wrote to memory of 680	4592	b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe	cmd.exe
PID 4592 wrote to memory of 680	4592	b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe	cmd.exe
PID 4592 wrote to memory of 680	4592	b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe	cmd.exe
PID 680 wrote to memory of 5100	680	cmd.exe	PING.EXE
PID 680 wrote to memory of 5100	680	cmd.exe	PING.EXE
PID 680 wrote to memory of 5100	680	cmd.exe	PING.EXE
PID 680 wrote to memory of 1312	680	cmd.exe	cmd.exe
PID 680 wrote to memory of 1312	680	cmd.exe	cmd.exe
PID 680 wrote to memory of 1312	680	cmd.exe	cmd.exe
PID 4216 wrote to memory of 916	4216	41828.exe	EhStorAuthn.exe
PID 4216 wrote to memory of 916	4216	41828.exe	EhStorAuthn.exe
PID 4216 wrote to memory of 916	4216	41828.exe	EhStorAuthn.exe
PID 4216 wrote to memory of 916	4216	41828.exe	EhStorAuthn.exe
PID 916 wrote to memory of 3168	916	EhStorAuthn.exe	schtasks.exe
PID 916 wrote to memory of 3168	916	EhStorAuthn.exe	schtasks.exe
PID 916 wrote to memory of 3168	916	EhStorAuthn.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe
"C:\Users\Admin\AppData\Local\Temp\b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\41828.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\41828.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Loads dropped DLL
  - Maps connected drives based on registry
  - Suspicious use of WriteProcessMemory
  PID:4216
- - 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:916
  - - 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:3168
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 620
    3⤵
    - Program crash
    PID:448
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\del.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:680
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:5100
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
    3⤵
    PID:1312
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 1144
  2⤵
  - Program crash
  PID:3636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4592 -ip 4592
1⤵
PID:5116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4216 -ip 4216
1⤵
PID:2092

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

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\41828.exe

Filesize
269KB

MD5
e640bdb76d7b30cb9ca9250d5b6631e3

SHA1
0540792efa9eb7ecdcfce3340dc0be1204c1e8c8

SHA256
b1af67bcfaa99c369960580f86e7c1a42fc473dd85a0a4d3b1c989a6bc138a42

SHA512
0d9bbc8f82a212cbb92595f2d5e7e4e1bab00061286f04441dce4c383827e3d55a60afee4e1d52b2af4ded201c5c54c046a4065ca055cfa1448b807a4a4a2034

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

Filesize
170B

MD5
a4e647734e5d81ca311fb08c0dcd18cb

SHA1
b87f1e31d58a07f60c903927720825a92a3840b5

SHA256
ea8621af8832071483084f0ddb156ab7eb7349d14ec03d3d08b881cb941a1143

SHA512
26514370f3fb5c99b1e0c986ba9ec1387536e7b010025d3dd479d390c4662f9d722c0ed243b8b902bcd3b882e8a2f7102e9b93dcff2f5cbb5a8c54c59660f006

Download Submit
memory/916-26-0x00000000008F0000-0x00000000008FC000-memory.dmp

Filesize
48KB

Download
memory/916-30-0x00000000008F0000-0x00000000008FC000-memory.dmp

Filesize
48KB

Download
memory/916-29-0x00000000008F0000-0x00000000008FC000-memory.dmp

Filesize
48KB

Download
memory/4216-19-0x0000000001B30000-0x0000000001C30000-memory.dmp

Filesize
1024KB

Download
memory/4216-21-0x0000000000400000-0x000000000177D000-memory.dmp

Filesize
19.5MB

Download
memory/4216-25-0x0000000000400000-0x000000000177D000-memory.dmp

Filesize
19.5MB

Download
memory/4216-20-0x00000000018A0000-0x00000000018A9000-memory.dmp

Filesize
36KB

Download
memory/4216-27-0x0000000000400000-0x000000000177D000-memory.dmp

Filesize
19.5MB

Download
memory/4592-22-0x0000000000400000-0x000000000177D000-memory.dmp

Filesize
19.5MB

Download
memory/4592-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

Filesize
36KB

Download
memory/4592-3-0x0000000000400000-0x000000000177D000-memory.dmp

Filesize
19.5MB

Download
memory/4592-1-0x0000000001790000-0x0000000001890000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads