Malware Analysis Report

2024-10-19 02:39

Sample ID 240907-xy537asepd
Target 85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462
SHA256 85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462
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: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462

Threat Level: Known bad

The file 85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462 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

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Checks processor information in registry

Scheduled Task/Job: Scheduled Task

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-07 19:16

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-07 19:16

Reported

2024-09-07 19:19

Platform

win10v2004-20240802-en

Max time kernel

142s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.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\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.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\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.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\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.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\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.exe

"C:\Users\Admin\AppData\Local\Temp\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.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 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 siv6sb.top udp
RU 195.133.48.136:80 siv6sb.top tcp
US 8.8.8.8:53 136.48.133.195.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 59.170.16.2.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

memory/2876-0-0x0000000000400000-0x000000000106A000-memory.dmp

memory/2876-1-0x0000000000400000-0x000000000106A000-memory.dmp

memory/2876-13-0x0000000000400000-0x000000000106A000-memory.dmp

memory/1140-15-0x0000000000A60000-0x0000000000A71000-memory.dmp

memory/1140-16-0x0000000074D40000-0x0000000074E7C000-memory.dmp

memory/2736-23-0x0000000000A60000-0x0000000000A71000-memory.dmp

memory/2288-38-0x0000000000A60000-0x0000000000A71000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-07 19:16

Reported

2024-09-07 19:19

Platform

win11-20240802-en

Max time kernel

142s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.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\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.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\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.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\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.exe

"C:\Users\Admin\AppData\Local\Temp\85dfa304a2f5b3b7b45a7e8e782d521a0d999fe7a1c4906166b80491c5ff9462.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 siv6sb.top udp
RU 195.133.48.136:80 siv6sb.top tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

memory/4588-0-0x0000000000400000-0x000000000106A000-memory.dmp

memory/4588-1-0x0000000000400000-0x000000000106A000-memory.dmp

memory/4588-13-0x0000000000400000-0x000000000106A000-memory.dmp

memory/4564-15-0x0000000000350000-0x0000000000361000-memory.dmp

memory/4564-16-0x00000000756B0000-0x00000000757EC000-memory.dmp

memory/4060-23-0x0000000000350000-0x0000000000361000-memory.dmp

memory/3144-38-0x0000000000350000-0x0000000000361000-memory.dmp