Malware Analysis Report

2024-11-13 16:28

Sample ID 220724-g7715safc7
Target 58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca
SHA256 58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca
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

58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca

Threat Level: Known bad

The file 58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca 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

Adds Run key to start application

Checks whether UAC is enabled

Suspicious use of NtSetInformationThreadHideFromDebugger

Program crash

Suspicious behavior: RenamesItself

Modifies Internet Explorer Protected Mode Banner

Suspicious behavior: MapViewOfSection

Modifies Internet Explorer settings

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates system info in registry

Modifies Internet Explorer Protected Mode

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-07-24 06:27

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-07-24 06:27

Reported

2022-07-25 15:59

Platform

win7-20220715-en

Max time kernel

146s

Max time network

150s

Command Line

C:\Windows\Explorer.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\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
Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\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\m1e1aokuce.exe C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\m1e1aokuce.exe\DisableExceptionChainValidation C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.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 = "ozbtkeh.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\\m1e1aokuce.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\\m1e1aokuce.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\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.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\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.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 opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Windows\SysWOW64\explorer.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer 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\1\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\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

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\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: SeCreateTokenPrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: SeMachineAccountPrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: SeAssignPrimaryTokenPrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.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 1136 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe C:\Windows\SysWOW64\explorer.exe
PID 1136 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe C:\Windows\SysWOW64\explorer.exe
PID 1136 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe C:\Windows\SysWOW64\explorer.exe
PID 1136 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe C:\Windows\SysWOW64\explorer.exe
PID 1136 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe C:\Windows\SysWOW64\explorer.exe
PID 1136 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe C:\Windows\SysWOW64\explorer.exe
PID 1136 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe C:\Windows\SysWOW64\explorer.exe
PID 984 wrote to memory of 1340 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 984 wrote to memory of 1340 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 984 wrote to memory of 1340 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 984 wrote to memory of 1340 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 984 wrote to memory of 1340 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 984 wrote to memory of 1340 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\system32\Dwm.exe
PID 984 wrote to memory of 1400 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 984 wrote to memory of 1400 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 984 wrote to memory of 1400 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 984 wrote to memory of 1400 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 984 wrote to memory of 1400 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE
PID 984 wrote to memory of 1400 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\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe

"C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.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/1136-54-0x0000000075681000-0x0000000075683000-memory.dmp

memory/1136-55-0x0000000000400000-0x00000000004C8000-memory.dmp

memory/1136-56-0x0000000001EE0000-0x0000000001F46000-memory.dmp

memory/1136-58-0x00000000004D0000-0x0000000000563000-memory.dmp

memory/1136-59-0x0000000000400000-0x00000000004C8000-memory.dmp

memory/1136-60-0x0000000001EE0000-0x0000000001F46000-memory.dmp

memory/1136-61-0x00000000003D0000-0x00000000003DD000-memory.dmp

memory/1136-62-0x0000000001FD0000-0x0000000001FDC000-memory.dmp

memory/984-63-0x0000000000000000-mapping.dmp

memory/984-65-0x0000000074861000-0x0000000074863000-memory.dmp

memory/1136-66-0x0000000001EE0000-0x0000000001F46000-memory.dmp

memory/984-67-0x0000000077330000-0x00000000774B0000-memory.dmp

memory/984-69-0x00000000004E0000-0x00000000004EC000-memory.dmp

memory/984-68-0x0000000000090000-0x000000000019D000-memory.dmp

memory/984-70-0x0000000077330000-0x00000000774B0000-memory.dmp

memory/984-71-0x0000000000090000-0x000000000019D000-memory.dmp

memory/1400-72-0x00000000021E0000-0x00000000021E6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-07-24 06:27

Reported

2022-07-25 15:59

Platform

win10v2004-20220721-en

Max time kernel

143s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe

"C:\Users\Admin\AppData\Local\Temp\58cf1910c8a9e15012de480c3e9c1337e7987a74d667c9298ff885b36d7298ca.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4928 -ip 4928

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4928 -s 276

Network

Country Destination Domain Proto
NL 88.221.144.187:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp

Files

memory/4928-130-0x00000000022C0000-0x0000000002353000-memory.dmp