Malware Analysis Report

2024-10-23 17:16

Sample ID 240909-1lstwatena
Target 40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463
SHA256 40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463
Tags
cryptbot credential_access discovery spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463

Threat Level: Known bad

The file 40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463 was found to be: Known bad.

Malicious Activity Summary

cryptbot credential_access discovery spyware stealer

CryptBot

Credentials from Password Stores: Credentials from Web Browsers

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Reads user/profile data of web browsers

Checks installed software on the system

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Scheduled Task/Job: Scheduled Task

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-09 21:44

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-09 21:44

Reported

2024-09-09 21:47

Platform

win11-20240802-en

Max time kernel

141s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe"

Signatures

CryptBot

spyware stealer cryptbot

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\service123.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe

"C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe"

C:\Users\Admin\AppData\Local\Temp\service123.exe

"C:\Users\Admin\AppData\Local\Temp\service123.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f

C:\Users\Admin\AppData\Local\Temp\service123.exe

C:\Users\Admin\AppData\Local\Temp\/service123.exe

C:\Users\Admin\AppData\Local\Temp\service123.exe

C:\Users\Admin\AppData\Local\Temp\/service123.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 siv6pn.top udp
RU 80.249.144.180:80 siv6pn.top tcp
US 8.8.8.8:53 180.144.249.80.in-addr.arpa udp
RU 80.249.144.180:80 siv6pn.top tcp
RU 80.249.144.180:80 siv6pn.top tcp

Files

memory/2984-0-0x0000000000400000-0x0000000001072000-memory.dmp

memory/2984-1-0x0000000000400000-0x0000000001072000-memory.dmp

memory/2984-13-0x0000000000400000-0x0000000001072000-memory.dmp

memory/724-15-0x0000000000950000-0x0000000000961000-memory.dmp

memory/724-16-0x0000000074D70000-0x0000000074EAC000-memory.dmp

memory/2892-25-0x0000000000950000-0x0000000000961000-memory.dmp

memory/2044-40-0x0000000000950000-0x0000000000961000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-09 21:44

Reported

2024-09-09 21:47

Platform

win10v2004-20240802-en

Max time kernel

141s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe"

Signatures

CryptBot

spyware stealer cryptbot

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe N/A

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\service123.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe

"C:\Users\Admin\AppData\Local\Temp\40b436c682b2055091fe80c8809ed127e783cb934a1cf342d84db7dac9df6463.exe"

C:\Users\Admin\AppData\Local\Temp\service123.exe

"C:\Users\Admin\AppData\Local\Temp\service123.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f

C:\Users\Admin\AppData\Local\Temp\service123.exe

C:\Users\Admin\AppData\Local\Temp\/service123.exe

C:\Users\Admin\AppData\Local\Temp\service123.exe

C:\Users\Admin\AppData\Local\Temp\/service123.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 siv6pn.top udp
RU 80.249.144.180:80 siv6pn.top tcp
US 8.8.8.8:53 180.144.249.80.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
RU 80.249.144.180:80 siv6pn.top tcp
RU 80.249.144.180:80 siv6pn.top tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 73.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/3984-0-0x0000000000400000-0x0000000001072000-memory.dmp

memory/3984-1-0x0000000000400000-0x0000000001072000-memory.dmp

memory/3984-13-0x0000000000400000-0x0000000001072000-memory.dmp

memory/4148-15-0x0000000000C10000-0x0000000000C21000-memory.dmp

memory/4148-16-0x0000000075210000-0x000000007534C000-memory.dmp

memory/1308-25-0x0000000000C10000-0x0000000000C21000-memory.dmp

memory/980-40-0x0000000000C10000-0x0000000000C21000-memory.dmp