Malware Analysis Report

2024-11-15 08:41

Sample ID 220714-gej4lsbdb7
Target 47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b
SHA256 47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b
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

47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b

Threat Level: Known bad

The file 47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b was found to be: Known bad.

Malicious Activity Summary

betabot backdoor botnet evasion persistence trojan

BetaBot

Modifies firewall policy service

Sets file execution options in registry

Checks BIOS information in registry

Adds Run key to start application

Checks whether UAC is enabled

Suspicious use of NtSetInformationThreadHideFromDebugger

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: RenamesItself

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Modifies Internet Explorer Protected Mode

Modifies Internet Explorer Protected Mode Banner

Modifies Internet Explorer settings

Enumerates system info in registry

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-07-14 05:43

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-07-14 05:43

Reported

2022-07-14 10:13

Platform

win7-20220414-en

Max time kernel

150s

Max time network

144s

Command Line

C:\Windows\Explorer.EXE

Signatures

BetaBot

trojan backdoor botnet betabot

Modifies firewall policy service

evasion
Description Indicator Process Target
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
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile 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\7o37391iuw57.exe C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\7o37391iuw57.exe\DisableExceptionChainValidation C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.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 = "vqbxlitmj.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
Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Windows Font Preloader Service = "C:\\ProgramData\\Windows Font Preloader Service\\7o37391iuw57.exe" C:\Windows\SysWOW64\explorer.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run C:\Windows\SysWOW64\explorer.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Font Preloader Service = "\"C:\\ProgramData\\Windows Font Preloader Service\\7o37391iuw57.exe\"" C:\Windows\SysWOW64\explorer.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce 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\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A

Checks processor information in registry

Description Indicator Process Target
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
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" C:\Windows\SysWOW64\explorer.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3" C:\Windows\SysWOW64\explorer.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" C:\Windows\SysWOW64\explorer.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\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-1-5-21-1819626980-2277161760-1023733287-1000\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-1-5-21-1819626980-2277161760-1023733287-1000\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\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: SeCreateTokenPrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: SeMachineAccountPrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: SeAssignPrimaryTokenPrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.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 536 wrote to memory of 1280 N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe C:\Windows\SysWOW64\explorer.exe
PID 536 wrote to memory of 1280 N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe C:\Windows\SysWOW64\explorer.exe
PID 536 wrote to memory of 1280 N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe C:\Windows\SysWOW64\explorer.exe
PID 536 wrote to memory of 1280 N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe C:\Windows\SysWOW64\explorer.exe
PID 536 wrote to memory of 1280 N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe C:\Windows\SysWOW64\explorer.exe
PID 536 wrote to memory of 1280 N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe C:\Windows\SysWOW64\explorer.exe
PID 536 wrote to memory of 1280 N/A C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe C:\Windows\SysWOW64\explorer.exe
PID 1280 wrote to memory of 1180 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 1280 wrote to memory of 1180 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 1280 wrote to memory of 1180 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 1280 wrote to memory of 1180 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 1280 wrote to memory of 1180 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 1280 wrote to memory of 1180 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 1280 wrote to memory of 1208 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 1280 wrote to memory of 1208 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 1280 wrote to memory of 1208 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 1280 wrote to memory of 1208 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 1280 wrote to memory of 1208 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 1280 wrote to memory of 1208 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\Dwm.exe

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

C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe

"C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.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/536-54-0x0000000075B61000-0x0000000075B63000-memory.dmp

memory/536-55-0x0000000000400000-0x00000000004AC000-memory.dmp

memory/536-56-0x0000000001ED0000-0x0000000001F36000-memory.dmp

memory/536-58-0x0000000000380000-0x00000000003F9000-memory.dmp

memory/536-59-0x0000000000400000-0x00000000004AC000-memory.dmp

memory/536-60-0x0000000001ED0000-0x0000000001F36000-memory.dmp

memory/536-61-0x0000000000520000-0x000000000052D000-memory.dmp

memory/536-62-0x0000000002710000-0x000000000271C000-memory.dmp

memory/1280-63-0x0000000000000000-mapping.dmp

memory/1280-65-0x00000000745E1000-0x00000000745E3000-memory.dmp

memory/536-67-0x0000000001ED0000-0x0000000001F36000-memory.dmp

memory/1280-66-0x00000000770B0000-0x0000000077230000-memory.dmp

memory/1280-68-0x00000000001F0000-0x00000000002E1000-memory.dmp

memory/1280-69-0x00000000003E0000-0x0000000000460000-memory.dmp

memory/1280-70-0x00000000770B0000-0x0000000077230000-memory.dmp

memory/1280-71-0x00000000001F0000-0x00000000002E1000-memory.dmp

memory/1208-72-0x0000000002220000-0x0000000002226000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-07-14 05:43

Reported

2022-07-14 10:13

Platform

win10v2004-20220414-en

Max time kernel

150s

Max time network

168s

Command Line

"C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe

"C:\Users\Admin\AppData\Local\Temp\47bad52757620adb213d227f70fdcd6cc2e50f5316e629d817ba74bfc91c556b.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2428 -ip 2428

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 232

Network

Country Destination Domain Proto
US 20.189.173.4:443 tcp
NL 104.110.191.133:80 tcp
US 52.242.97.97:443 tcp
US 8.8.8.8:53 96.108.152.52.in-addr.arpa udp
NL 104.110.191.133:80 tcp

Files

memory/2428-130-0x0000000000640000-0x00000000006B9000-memory.dmp