Malware Analysis Report

2024-11-13 16:28

Sample ID 220731-hdzy4schg2
Target 602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe
SHA256 602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe
Tags
betabot backdoor botnet evasion persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe

Threat Level: Known bad

The file 602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe was found to be: Known bad.

Malicious Activity Summary

betabot backdoor botnet evasion persistence trojan

Modifies firewall policy service

BetaBot

Sets file execution options in registry

Checks BIOS information in registry

Checks whether UAC is enabled

Adds Run key to start application

Suspicious use of NtSetInformationThreadHideFromDebugger

Program crash

Suspicious behavior: RenamesItself

Checks processor information in registry

Modifies Internet Explorer Protected Mode

Modifies Internet Explorer settings

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates system info in registry

Suspicious behavior: EnumeratesProcesses

Modifies Internet Explorer Protected Mode Banner

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-07-31 06:37

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-07-31 06:37

Reported

2022-07-31 09:31

Platform

win7-20220715-en

Max time kernel

144s

Max time network

146s

Command Line

"C:\Windows\system32\Dwm.exe"

Signatures

BetaBot

trojan backdoor botnet betabot

Modifies firewall policy service

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile C:\Windows\SysWOW64\explorer.exe N/A
Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" C:\Windows\SysWOW64\explorer.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile C:\Windows\SysWOW64\explorer.exe N/A
Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\EnableFirewall = "0" C:\Windows\SysWOW64\explorer.exe N/A

Sets file execution options in registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\g37w99u1957sa7.exe C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\g37w99u1957sa7.exe\DisableExceptionChainValidation C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe C:\Windows\SysWOW64\explorer.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe\Debugger = "xpxxfzem.exe" C:\Windows\SysWOW64\explorer.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Windows\SysWOW64\explorer.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce C:\Windows\SysWOW64\explorer.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Windows Font Preloader Service = "C:\\ProgramData\\Windows Font Preloader Service\\g37w99u1957sa7.exe" C:\Windows\SysWOW64\explorer.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run C:\Windows\SysWOW64\explorer.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Font Preloader Service = "\"C:\\ProgramData\\Windows Font Preloader Service\\g37w99u1957sa7.exe\"" C:\Windows\SysWOW64\explorer.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.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\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\SysWOW64\explorer.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\SysWOW64\explorer.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer C:\Windows\SysWOW64\explorer.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Windows\SysWOW64\explorer.exe N/A

Modifies Internet Explorer Protected Mode

Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" C:\Windows\SysWOW64\explorer.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" C:\Windows\SysWOW64\explorer.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3" C:\Windows\SysWOW64\explorer.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" C:\Windows\SysWOW64\explorer.exe N/A

Modifies Internet Explorer Protected Mode Banner

Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" C:\Windows\SysWOW64\explorer.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Main C:\Windows\SysWOW64\explorer.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeCreateTokenPrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeMachineAccountPrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeAssignPrimaryTokenPrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: SeCreateTokenPrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: SeMachineAccountPrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: SeAssignPrimaryTokenPrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\SysWOW64\explorer.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\explorer.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1704 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe C:\Windows\SysWOW64\explorer.exe
PID 1704 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe C:\Windows\SysWOW64\explorer.exe
PID 1704 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe C:\Windows\SysWOW64\explorer.exe
PID 1704 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe C:\Windows\SysWOW64\explorer.exe
PID 1704 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe C:\Windows\SysWOW64\explorer.exe
PID 1704 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe C:\Windows\SysWOW64\explorer.exe
PID 1704 wrote to memory of 1072 N/A C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe C:\Windows\SysWOW64\explorer.exe
PID 1072 wrote to memory of 1336 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 1072 wrote to memory of 1336 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 1072 wrote to memory of 1336 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 1072 wrote to memory of 1336 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 1072 wrote to memory of 1336 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 1072 wrote to memory of 1336 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 1072 wrote to memory of 1384 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 1072 wrote to memory of 1384 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 1072 wrote to memory of 1384 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 1072 wrote to memory of 1384 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 1072 wrote to memory of 1384 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 1072 wrote to memory of 1384 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE

Processes

C:\Windows\system32\Dwm.exe

"C:\Windows\system32\Dwm.exe"

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe

"C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe"

C:\Windows\SysWOW64\explorer.exe

C:\Windows\SysWOW64\explorer.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 google.com udp
NL 142.250.179.142:80 google.com tcp
US 8.8.8.8:53 lago333.com udp
US 8.8.8.8:53 lago333.club udp
US 8.8.8.8:53 lago333.site udp
US 8.8.8.8:53 lago333.xyz udp

Files

memory/1704-54-0x00000000764D1000-0x00000000764D3000-memory.dmp

memory/1704-55-0x0000000000400000-0x00000000004C7000-memory.dmp

memory/1704-56-0x00000000004D0000-0x0000000000564000-memory.dmp

memory/1704-57-0x0000000000400000-0x00000000004C7000-memory.dmp

memory/1704-58-0x0000000001E10000-0x0000000001E76000-memory.dmp

memory/1704-59-0x0000000001E10000-0x0000000001E76000-memory.dmp

memory/1704-62-0x0000000001E90000-0x0000000001E9C000-memory.dmp

memory/1704-61-0x0000000000570000-0x000000000057D000-memory.dmp

memory/1072-63-0x0000000000000000-mapping.dmp

memory/1072-65-0x0000000075281000-0x0000000075283000-memory.dmp

memory/1072-66-0x0000000077D40000-0x0000000077EC0000-memory.dmp

memory/1072-67-0x0000000000130000-0x000000000023D000-memory.dmp

memory/1072-68-0x0000000000320000-0x00000000003A0000-memory.dmp

memory/1704-69-0x0000000001E10000-0x0000000001E76000-memory.dmp

memory/1072-70-0x0000000077D40000-0x0000000077EC0000-memory.dmp

memory/1072-71-0x0000000000130000-0x000000000023D000-memory.dmp

memory/1384-72-0x0000000001DC0000-0x0000000001DC6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-07-31 06:37

Reported

2022-07-31 09:31

Platform

win10v2004-20220721-en

Max time kernel

152s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe

"C:\Users\Admin\AppData\Local\Temp\602463257ced1e61f560b0bbfda886d7811b2e5d2f5f9ce21d7fd46df6127cbe.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2464 -ip 2464

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2464 -s 236

Network

Country Destination Domain Proto
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 8.249.181.254:80 tcp
US 8.249.181.254:80 tcp
US 8.249.181.254:80 tcp
US 20.189.173.9:443 tcp
US 8.247.211.254:80 tcp
US 93.184.221.240:80 tcp

Files

memory/2464-130-0x0000000000790000-0x0000000000824000-memory.dmp