Malware Analysis Report

2024-10-19 02:39

Sample ID 240908-ptgk2ayeja
Target 66dd5fafdeab3_lyla.exe
SHA256 8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519
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

8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519

Threat Level: Known bad

The file 66dd5fafdeab3_lyla.exe was found to be: Known bad.

Malicious Activity Summary

cryptbot credential_access discovery spyware stealer

CryptBot

Credentials from Password Stores: Credentials from Web Browsers

Checks computer location settings

Reads user/profile data of web browsers

Loads dropped DLL

Executes dropped EXE

Checks installed software on the system

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Scheduled Task/Job: Scheduled Task

Suspicious use of WriteProcessMemory

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-08 12:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-08 12:37

Reported

2024-09-08 12:39

Platform

win7-20240903-en

Max time kernel

141s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.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\66dd5fafdeab3_lyla.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\66dd5fafdeab3_lyla.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2892 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2892 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2892 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2892 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2892 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.exe C:\Windows\SysWOW64\schtasks.exe
PID 2892 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.exe C:\Windows\SysWOW64\schtasks.exe
PID 2892 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.exe C:\Windows\SysWOW64\schtasks.exe
PID 2892 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.exe C:\Windows\SysWOW64\schtasks.exe
PID 2668 wrote to memory of 2212 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2668 wrote to memory of 2212 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2668 wrote to memory of 2212 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2668 wrote to memory of 2212 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2668 wrote to memory of 2980 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2668 wrote to memory of 2980 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2668 wrote to memory of 2980 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2668 wrote to memory of 2980 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe

Processes

C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.exe

"C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.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:\Windows\system32\taskeng.exe

taskeng.exe {07988C5D-5CB2-4896-B949-FC4E547CE582} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]

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 tventyv20sb.top udp
RU 194.87.248.136:80 tventyv20sb.top tcp

Files

memory/2892-0-0x0000000000400000-0x000000000106F000-memory.dmp

memory/2892-1-0x0000000000400000-0x000000000106F000-memory.dmp

memory/2892-14-0x0000000000400000-0x000000000106F000-memory.dmp

memory/2888-16-0x0000000000B00000-0x0000000000B11000-memory.dmp

memory/2888-17-0x0000000074F10000-0x000000007504C000-memory.dmp

memory/2212-21-0x0000000000B00000-0x0000000000B11000-memory.dmp

memory/2980-36-0x0000000000B00000-0x0000000000B11000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-08 12:37

Reported

2024-09-08 12:39

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.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\66dd5fafdeab3_lyla.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\66dd5fafdeab3_lyla.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.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\66dd5fafdeab3_lyla.exe

"C:\Users\Admin\AppData\Local\Temp\66dd5fafdeab3_lyla.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 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 tventyv20sb.top udp
RU 194.87.248.136:80 tventyv20sb.top tcp
US 8.8.8.8:53 136.248.87.194.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
NL 52.111.243.31:443 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 8.173.189.20.in-addr.arpa udp

Files

memory/2692-0-0x0000000000400000-0x000000000106F000-memory.dmp

memory/2692-1-0x0000000000400000-0x000000000106F000-memory.dmp

memory/2692-13-0x0000000000400000-0x000000000106F000-memory.dmp

memory/4836-15-0x0000000000270000-0x0000000000281000-memory.dmp

memory/4836-16-0x0000000074BC0000-0x0000000074CFC000-memory.dmp

memory/2192-19-0x0000000000270000-0x0000000000281000-memory.dmp

memory/4900-34-0x0000000000270000-0x0000000000281000-memory.dmp