saintbot | 9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34

General

Target

9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe
Size

234KB
MD5

23f5b5fcd6f181088af23614bf6e015f
SHA1

edba6f00b0b697b59ce958c01f8c62bfac51b021
SHA256

9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34
SHA512

b5923d60b654c69088525dc08d5f11c1fa5465d4f567af95b993d41eceb82976c6b4c137342aaaed0f67ba5a04f0dd5b74622d612bc97a92006a813923b2f901
SSDEEP

3072:EIWl+LyyTYPc4cW/QgB3JibTVLHvFKFsC6snEQ8Zq0b2AIr8mY5:EI/LyGYp/xB49vFKcsnJ8Zq0b7m

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
behavioral1/memory/2088-2-0x00000000001B0000-0x00000000001B9000-memory.dmp	family_saintbot
behavioral1/memory/2088-3-0x0000000000400000-0x0000000000A14000-memory.dmp	family_saintbot
behavioral1/memory/2088-23-0x0000000000400000-0x0000000000A14000-memory.dmp	family_saintbot
behavioral1/memory/2948-27-0x0000000000400000-0x0000000000A14000-memory.dmp	family_saintbot
behavioral1/memory/2948-31-0x0000000000400000-0x0000000000A14000-memory.dmp	family_saintbot
behavioral1/memory/2752-33-0x00000000000C0000-0x00000000000CB000-memory.dmp	family_saintbot
behavioral1/memory/2752-35-0x00000000000C0000-0x00000000000CB000-memory.dmp	family_saintbot
behavioral1/memory/2752-36-0x00000000000C0000-0x00000000000CB000-memory.dmp	family_saintbot

Deletes itself 1 IoCs

pid	Process
2836	cmd.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Office Proof (Spanish) 2010.exe	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Office Proof (Spanish) 2010.exe	Microsoft Office Proof (Spanish) 2010.exe

Executes dropped EXE 1 IoCs

pid	Process
2948	Microsoft Office Proof (Spanish) 2010.exe

Loads dropped DLL 4 IoCs

pid	Process
2088	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe
2088	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe
2948	Microsoft Office Proof (Spanish) 2010.exe
2752	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-1-5-21-3627615824-4061627003-3019543961-1000\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	EhStorAuthn.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	EhStorAuthn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	Microsoft Office Proof (Spanish) 2010.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Microsoft Office Proof (Spanish) 2010.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
2448	schtasks.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2592	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2948	Microsoft Office Proof (Spanish) 2010.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2948	2088	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe	28
PID 2088 wrote to memory of 2948	2088	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe	28
PID 2088 wrote to memory of 2948	2088	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe	28
PID 2088 wrote to memory of 2948	2088	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe	28
PID 2088 wrote to memory of 2836	2088	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe	29
PID 2088 wrote to memory of 2836	2088	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe	29
PID 2088 wrote to memory of 2836	2088	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe	29
PID 2088 wrote to memory of 2836	2088	9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe	29
PID 2836 wrote to memory of 2592	2836	cmd.exe	31
PID 2836 wrote to memory of 2592	2836	cmd.exe	31
PID 2836 wrote to memory of 2592	2836	cmd.exe	31
PID 2836 wrote to memory of 2592	2836	cmd.exe	31
PID 2836 wrote to memory of 2232	2836	cmd.exe	32
PID 2836 wrote to memory of 2232	2836	cmd.exe	32
PID 2836 wrote to memory of 2232	2836	cmd.exe	32
PID 2836 wrote to memory of 2232	2836	cmd.exe	32
PID 2948 wrote to memory of 2752	2948	Microsoft Office Proof (Spanish) 2010.exe	33
PID 2948 wrote to memory of 2752	2948	Microsoft Office Proof (Spanish) 2010.exe	33
PID 2948 wrote to memory of 2752	2948	Microsoft Office Proof (Spanish) 2010.exe	33
PID 2948 wrote to memory of 2752	2948	Microsoft Office Proof (Spanish) 2010.exe	33
PID 2948 wrote to memory of 2752	2948	Microsoft Office Proof (Spanish) 2010.exe	33
PID 2752 wrote to memory of 2448	2752	EhStorAuthn.exe	34
PID 2752 wrote to memory of 2448	2752	EhStorAuthn.exe	34
PID 2752 wrote to memory of 2448	2752	EhStorAuthn.exe	34
PID 2752 wrote to memory of 2448	2752	EhStorAuthn.exe	34

C:\Users\Admin\AppData\Local\Temp\9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe
"C:\Users\Admin\AppData\Local\Temp\9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Office Proof (Spanish) 2010.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Office Proof (Spanish) 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:2948
- - 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:2752
  - - 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:2448
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Roaming\del.bat
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:2592
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
    3⤵
    PID:2232

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

3

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
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

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

Filesize
170B

MD5
7214daf11f3bb3daf22f81e448ae8bfe

SHA1
b819d839f52dfe6b61e03aaf3b2de55d3e5f10c1

SHA256
0487da2735d154be7e023c963756dae07e7ff7a78e7a5578ee592cda41935029

SHA512
f61ad0bd84db7199d7bc4e0ade52c647cecb1b789ebaa4089e11cba02d0169486c983278ae626eb17f11eea405dfbf88b22a0e9aea4a3ecd6beb28bd7e127d65

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

Filesize
234KB

MD5
23f5b5fcd6f181088af23614bf6e015f

SHA1
edba6f00b0b697b59ce958c01f8c62bfac51b021

SHA256
9ec80626504ca869f5e731aef720e446936333aaf6ab32bae03c0de3c2299f34

SHA512
b5923d60b654c69088525dc08d5f11c1fa5465d4f567af95b993d41eceb82976c6b4c137342aaaed0f67ba5a04f0dd5b74622d612bc97a92006a813923b2f901

Download Submit
memory/2088-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2088-3-0x0000000000400000-0x0000000000A14000-memory.dmp

Filesize
6.1MB

Download
memory/2088-23-0x0000000000400000-0x0000000000A14000-memory.dmp

Filesize
6.1MB

Download
memory/2088-2-0x00000000001B0000-0x00000000001B9000-memory.dmp

Filesize
36KB

Download
memory/2752-33-0x00000000000C0000-0x00000000000CB000-memory.dmp

Filesize
44KB

Download
memory/2752-36-0x00000000000C0000-0x00000000000CB000-memory.dmp

Filesize
44KB

Download
memory/2752-35-0x00000000000C0000-0x00000000000CB000-memory.dmp

Filesize
44KB

Download
memory/2948-26-0x0000000000B20000-0x0000000000C20000-memory.dmp

Filesize
1024KB

Download
memory/2948-31-0x0000000000400000-0x0000000000A14000-memory.dmp

Filesize
6.1MB

Download
memory/2948-27-0x0000000000400000-0x0000000000A14000-memory.dmp

Filesize
6.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads