saintbot | ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96

General

Target

ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe
Size

29KB
MD5

88d9e88e61e538f89688f26ab43fc3a5
SHA1

7e77b925973755da363ad876c31d3552e91ed725
SHA256

ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96
SHA512

f37fb5b200dc54ea2e0ac57e6ac9c0a3681e9c1fe2e17c0edebc9b457dfabc4e23075f54a2c8d783afa4227356c26f92a10eda1b6a5583d9a60928efe2b57cc8
SSDEEP

768:Jv9SiOBEcXWrfRsA0hNnuHmrhCOWo12vTzXTbH32:8Xqk6HDOWrzPm

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 4 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\39608.exe	family_saintbot
behavioral2/memory/3740-16-0x0000000000A20000-0x0000000000A2C000-memory.dmp	family_saintbot
behavioral2/memory/3740-18-0x0000000000A20000-0x0000000000A2C000-memory.dmp	family_saintbot
behavioral2/memory/3740-19-0x0000000000A20000-0x0000000000A2C000-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:

ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe

Drops startup file 2 IoCs

Processes:

39608.exeac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\39608.exe	39608.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\39608.exe	ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe

Executes dropped EXE 1 IoCs

Processes:

39608.exe

pid process

3916 39608.exe
Loads dropped DLL 2 IoCs

Processes:

39608.exeEhStorAuthn.exe

pid process

3916 39608.exe
3740 EhStorAuthn.exe

pid	process
3916	39608.exe

pid	process
3916	39608.exe
3740	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-1-5-21-3844919115-497234255-166257750-1000\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:

39608.exeEhStorAuthn.exeac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	39608.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	ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	39608.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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2636 PING.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

EhStorAuthn.exe

description pid process

Token: SeDebugPrivilege 3740 EhStorAuthn.exe

pid	process
2636	PING.EXE

description	pid	process
Token: SeDebugPrivilege	3740	EhStorAuthn.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.execmd.exe39608.exe

description	pid	process	target process
PID 4976 wrote to memory of 3916	4976	ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe	39608.exe
PID 4976 wrote to memory of 3916	4976	ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe	39608.exe
PID 4976 wrote to memory of 3916	4976	ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe	39608.exe
PID 4976 wrote to memory of 4952	4976	ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe	cmd.exe
PID 4976 wrote to memory of 4952	4976	ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe	cmd.exe
PID 4976 wrote to memory of 4952	4976	ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe	cmd.exe
PID 4952 wrote to memory of 2636	4952	cmd.exe	PING.EXE
PID 4952 wrote to memory of 2636	4952	cmd.exe	PING.EXE
PID 4952 wrote to memory of 2636	4952	cmd.exe	PING.EXE
PID 4952 wrote to memory of 3236	4952	cmd.exe	cmd.exe
PID 4952 wrote to memory of 3236	4952	cmd.exe	cmd.exe
PID 4952 wrote to memory of 3236	4952	cmd.exe	cmd.exe
PID 3916 wrote to memory of 3740	3916	39608.exe	EhStorAuthn.exe
PID 3916 wrote to memory of 3740	3916	39608.exe	EhStorAuthn.exe
PID 3916 wrote to memory of 3740	3916	39608.exe	EhStorAuthn.exe
PID 3916 wrote to memory of 3740	3916	39608.exe	EhStorAuthn.exe

C:\Users\Admin\AppData\Local\Temp\ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe
"C:\Users\Admin\AppData\Local\Temp\ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:4976
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\39608.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\39608.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Loads dropped DLL
  - Maps connected drives based on registry
  - Suspicious use of WriteProcessMemory
  PID:3916
- - 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 AdjustPrivilegeToken
    PID:3740
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\del.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4952
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:2636
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
    3⤵
    PID:3236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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\39608.exe

Filesize
29KB

MD5
88d9e88e61e538f89688f26ab43fc3a5

SHA1
7e77b925973755da363ad876c31d3552e91ed725

SHA256
ac38403a3188bfe31850a3710cdd1311abe9f7bdaa0e23add7eda61960572f96

SHA512
f37fb5b200dc54ea2e0ac57e6ac9c0a3681e9c1fe2e17c0edebc9b457dfabc4e23075f54a2c8d783afa4227356c26f92a10eda1b6a5583d9a60928efe2b57cc8

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

Filesize
170B

MD5
462f62f0909bb4094987c1f4bed77bbb

SHA1
e9ca0d414522cfcffae0491fd8beb6b0cd7a0e5b

SHA256
0867276cd132942c93c5c6882ec81e645d2c336aedd7f6a987aaa826ec1bb01b

SHA512
4ed460675630ffef36428cbc8d698f7450f6f0cb9188335af98572405d0539970af450139cb49a3c6de86b5b8060f98cb19c9df632d4734d8974c51d6932d105

Download Submit
memory/3740-16-0x0000000000A20000-0x0000000000A2C000-memory.dmp

Filesize
48KB

Download
memory/3740-18-0x0000000000A20000-0x0000000000A2C000-memory.dmp

Filesize
48KB

Download
memory/3740-19-0x0000000000A20000-0x0000000000A2C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads