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

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
behavioral1/memory/1940-2-0x0000000000020000-0x0000000000029000-memory.dmp	family_saintbot
behavioral1/memory/1940-3-0x0000000000400000-0x0000000001782000-memory.dmp	family_saintbot
behavioral1/memory/1940-23-0x0000000000400000-0x0000000001782000-memory.dmp	family_saintbot
behavioral1/memory/2964-27-0x0000000000400000-0x0000000001782000-memory.dmp	family_saintbot
behavioral1/memory/2964-31-0x0000000000400000-0x0000000001782000-memory.dmp	family_saintbot
behavioral1/memory/2972-33-0x00000000000C0000-0x00000000000CB000-memory.dmp	family_saintbot
behavioral1/memory/2972-35-0x00000000000C0000-0x00000000000CB000-memory.dmp	family_saintbot
behavioral1/memory/2972-36-0x00000000000C0000-0x00000000000CB000-memory.dmp	family_saintbot

Deletes itself 1 IoCs

pid	Process
2592	cmd.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\36539.exe	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\36539.exe	36539.exe

Executes dropped EXE 1 IoCs

pid	Process
2964	36539.exe

Loads dropped DLL 4 IoCs

pid	Process
1940	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe
1940	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe
2964	36539.exe
2972	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	EhStorAuthn.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	EhStorAuthn.exe
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	36539.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	36539.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

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 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

pid	Process
2504	schtasks.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2668	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2964	36539.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2964	1940	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	28
PID 1940 wrote to memory of 2964	1940	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	28
PID 1940 wrote to memory of 2964	1940	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	28
PID 1940 wrote to memory of 2964	1940	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	28
PID 1940 wrote to memory of 2592	1940	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	29
PID 1940 wrote to memory of 2592	1940	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	29
PID 1940 wrote to memory of 2592	1940	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	29
PID 1940 wrote to memory of 2592	1940	b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe	29
PID 2592 wrote to memory of 2668	2592	cmd.exe	31
PID 2592 wrote to memory of 2668	2592	cmd.exe	31
PID 2592 wrote to memory of 2668	2592	cmd.exe	31
PID 2592 wrote to memory of 2668	2592	cmd.exe	31
PID 2592 wrote to memory of 2104	2592	cmd.exe	32
PID 2592 wrote to memory of 2104	2592	cmd.exe	32
PID 2592 wrote to memory of 2104	2592	cmd.exe	32
PID 2592 wrote to memory of 2104	2592	cmd.exe	32
PID 2964 wrote to memory of 2972	2964	36539.exe	33
PID 2964 wrote to memory of 2972	2964	36539.exe	33
PID 2964 wrote to memory of 2972	2964	36539.exe	33
PID 2964 wrote to memory of 2972	2964	36539.exe	33
PID 2964 wrote to memory of 2972	2964	36539.exe	33
PID 2972 wrote to memory of 2504	2972	EhStorAuthn.exe	34
PID 2972 wrote to memory of 2504	2972	EhStorAuthn.exe	34
PID 2972 wrote to memory of 2504	2972	EhStorAuthn.exe	34
PID 2972 wrote to memory of 2504	2972	EhStorAuthn.exe	34

C:\Users\Admin\AppData\Local\Temp\b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe
"C:\Users\Admin\AppData\Local\Temp\b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\36539.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\36539.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:2964
- - 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:2972
  - - 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:2504
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Roaming\del.bat
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2592
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:2668
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
    3⤵
    PID:2104

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

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Downloads

C:\Users\Admin\AppData\Local\z_Admin\wallpaper.mp4

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

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

Filesize
170B

MD5
59567a02eaa7e28d9286b9a3bd7fc87a

SHA1
c16234298467868b32af7eb3a61207c6b11b3b92

SHA256
61999e63b40cc7048f24f290a80a87c02f6306131d08a505d751b28cde3fab59

SHA512
d6e76110c4784ab6a4648724ba76bb165b9cdff1cd747f68c8abbb2b8a6450d40008e844815a50538391ce789faaeac11038a3701c0e414513c05c79e8a417f5

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\36539.exe

Filesize
286KB

MD5
ae37c9bfa13df2a6353039fe6e7a54e7

SHA1
c99c15bd925d9364b5101f490bdcb05e3227b2cf

SHA256
b6e34665dd0d045c2c79bf3148f34da0b877514a6b083b7c8c7e2577362463b3

SHA512
e3479b662caac02be072fcec2ac1bba54c3a0a2d78df62d747708f42fc67f8cabe1242180bee744895e1f24506c03bfda337e37e080ee7bb3e44e77de451fdde

Download Submit
memory/1940-1-0x00000000018C0000-0x00000000019C0000-memory.dmp

Filesize
1024KB

Download
memory/1940-3-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download
memory/1940-23-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download
memory/1940-2-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

Download
memory/2964-25-0x00000000018A0000-0x00000000019A0000-memory.dmp

Filesize
1024KB

Download
memory/2964-27-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download
memory/2964-31-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download
memory/2972-33-0x00000000000C0000-0x00000000000CB000-memory.dmp

Filesize
44KB

Download
memory/2972-35-0x00000000000C0000-0x00000000000CB000-memory.dmp

Filesize
44KB

Download
memory/2972-36-0x00000000000C0000-0x00000000000CB000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads