betabot | 64c665b2dbdaca4a20aaef96d625091757008c88b49d71070e4eefcd45d986d8

Resubmissions

10-05-2024 17:13

240510-vrrk4sgd7t 10

10-05-2024 17:09

240510-vphv7abd29 10

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10-05-2024 17:09

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General

Target

High Priority/)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Size

609KB
MD5

347d7700eb4a4537df6bb7492ca21702
SHA1

983189dab4b523e19f8efd35eee4d7d43d84aca2
SHA256

a9963808a1a358d6ee26ab88bdab4add50512de1a863aa79937815444ee64da8
SHA512

5efb1bce5b5fe74c886126c7bf3627628842a73d31550aee61b71e462b0cc4256b07ae2dc8c207917c5e134c15b8b1d5f3bbbd76724a9b12188f32ba48c25ac9
SSDEEP

12288:Y71ezsKspcx7aSekHeX/BoVrWyrl/XYUx58wT7tRw:IYzsDyAS/HeyWql/XYUz8wTDw

Score

10^/10

betabot modiloader backdoor botnet evasion persistence trojan

Malware Config

Signatures

BetaBot
Beta Bot is a Trojan that infects computers and disables Antivirus.
trojan backdoor botnet betabot
ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

Modifies firewall policy service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	explorer.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\EnableFirewall = "0"	explorer.exe

ModiLoader Second Stage 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2476-1-0x0000000000400000-0x000000000049F000-memory.dmp	modiloader_stage2
behavioral1/memory/2348-12-0x00000000010B0000-0x00000000011B2000-memory.dmp	modiloader_stage2

Sets file execution options in registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

explorer.exe)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe\Debugger = "exy.exe"	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msai1c731.exe	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msai1c731.exe\DisableExceptionChainValidation	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe

Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

explorer.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorer.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Google Updater 5.0 = "C:\\ProgramData\\Google Updater 5.0\\msai1c731.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Google Updater 5.0 = "\"C:\\ProgramData\\Google Updater 5.0\\msai1c731.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA )}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exeexplorer.exe

pid process

1092 )}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
2348 explorer.exe
2348 explorer.exe
2348 explorer.exe
2348 explorer.exe
2348 explorer.exe
2348 explorer.exe
2348 explorer.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe

description pid process target process

PID 2476 set thread context of 1092 2476 )}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe )}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

804 2348 WerFault.exe explorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe

pid	process
1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
2348	explorer.exe
2348	explorer.exe
2348	explorer.exe
2348	explorer.exe
2348	explorer.exe
2348	explorer.exe
2348	explorer.exe

description	pid	process	target process
PID 2476 set thread context of 1092	2476	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe

pid	pid_target	process	target process
804	2348	WerFault.exe	explorer.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exeexplorer.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

explorer.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS explorer.exe
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer explorer.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	explorer.exe

Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3"	explorer.exe

Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

explorer.exe

description ioc process

Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" explorer.exe
Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

explorer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Main explorer.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

explorer.exe

pid process

2348 explorer.exe
2348 explorer.exe
2348 explorer.exe
2348 explorer.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe

pid process

1092 )}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
1092 )}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe

pid process

1092 )}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1"	explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe

pid	process
2348	explorer.exe
2348	explorer.exe
2348	explorer.exe
2348	explorer.exe

pid	process
1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe

pid	process
1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe

Suspicious use of AdjustPrivilegeToken 28 IoCs

Processes:

)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exeexplorer.exe

description	pid	process
Token: SeDebugPrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeRestorePrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeBackupPrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeLoadDriverPrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeCreatePagefilePrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeShutdownPrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeTakeOwnershipPrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeChangeNotifyPrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeCreateTokenPrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeMachineAccountPrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeSecurityPrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeAssignPrimaryTokenPrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeCreateGlobalPrivilege	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: 33	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
Token: SeDebugPrivilege	2348	explorer.exe
Token: SeRestorePrivilege	2348	explorer.exe
Token: SeBackupPrivilege	2348	explorer.exe
Token: SeLoadDriverPrivilege	2348	explorer.exe
Token: SeCreatePagefilePrivilege	2348	explorer.exe
Token: SeShutdownPrivilege	2348	explorer.exe
Token: SeTakeOwnershipPrivilege	2348	explorer.exe
Token: SeChangeNotifyPrivilege	2348	explorer.exe
Token: SeCreateTokenPrivilege	2348	explorer.exe
Token: SeMachineAccountPrivilege	2348	explorer.exe
Token: SeSecurityPrivilege	2348	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	2348	explorer.exe
Token: SeCreateGlobalPrivilege	2348	explorer.exe
Token: 33	2348	explorer.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe

description	pid	process	target process
PID 2476 wrote to memory of 1092	2476	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
PID 2476 wrote to memory of 1092	2476	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
PID 2476 wrote to memory of 1092	2476	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
PID 2476 wrote to memory of 1092	2476	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
PID 2476 wrote to memory of 1092	2476	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
PID 1092 wrote to memory of 2348	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe	explorer.exe
PID 1092 wrote to memory of 2348	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe	explorer.exe
PID 1092 wrote to memory of 2348	1092	)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\High Priority\)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
"C:\Users\Admin\AppData\Local\Temp\High Priority\)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2476

C:\Users\Admin\AppData\Local\Temp\High Priority\)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe
"C:\Users\Admin\AppData\Local\Temp\High Priority\)}ì~)J0ø‰º!Ã²@x&ÚâØaßHÍôõ.exe"
2⤵
- Sets file execution options in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1092

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Modifies firewall policy service
- Sets file execution options in registry
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Enumerates system info in registry
- Modifies Internet Explorer Protected Mode
- Modifies Internet Explorer Protected Mode Banner
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2348 -s 1080
4⤵
- Program crash
PID:804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 2348 -ip 2348
1⤵
PID:2928

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

memory/1092-0-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1092-3-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1092-4-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1092-6-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1092-7-0x0000000002120000-0x0000000002186000-memory.dmp

Filesize
408KB

Download
memory/2348-9-0x0000000000C70000-0x00000000010A4000-memory.dmp

Filesize
4.2MB

Download
memory/2348-11-0x0000000000C70000-0x00000000010A4000-memory.dmp

Filesize
4.2MB

Download
memory/2348-12-0x00000000010B0000-0x00000000011B2000-memory.dmp

Filesize
1.0MB

Download
memory/2348-14-0x0000000000C70000-0x00000000010A3000-memory.dmp

Filesize
4.2MB

Download
memory/2476-1-0x0000000000400000-0x000000000049F000-memory.dmp

Filesize
636KB

Download