betabot | 4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf

General

Target

4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Size

315KB
MD5

6a862dc51bdf3cb9cbcff57bb592546c
SHA1

51f4bce1b1196e85146bec83a6549763af3f334c
SHA256

4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf
SHA512

14d8ae5a44e1e1ca0c72e2cb0763f32b24698c0e1219c1e6c6d4b47874f5908678694501e3d20ba0eff149c8c0b0a79447adcddca0f8d665472947edc1f0e267
SSDEEP

6144:OAsBZxLA8ivLPhyqaShRf9OpRb9tDia3BjoybPDhk8Ni6F9D3qAPqUvtPTiI:SL7iTPhbAp9rznbr5i6F9TFLiI

Score

10^/10

betabot backdoor botnet evasion persistence trojan

Malware Config

Signatures

BetaBot
Beta Bot is a Trojan that infects computers and disables Antivirus.
trojan backdoor botnet betabot

Modifies firewall policy service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

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

Sets file execution options in registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe\Debugger = "ruoosykwq.exe"	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\9ykk3777wm931k.exe	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\9ykk3777wm931k.exe\DisableExceptionChainValidation	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe	explorer.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
Loads dropped DLL 1 IoCs

Processes:

4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

pid process

4832 4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

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

pid	process
4832	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Windows Search 5.3.10 = "C:\\ProgramData\\Windows Search 5.3.10\\9ykk3777wm931k.exe"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Search 5.3.10 = "\"C:\\ProgramData\\Windows Search 5.3.10\\9ykk3777wm931k.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

description	ioc	process
File created	C:\ProgramData\Windows Search 5.3.10\desktop.ini	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
File opened for modification	C:\ProgramData\Windows Search 5.3.10\desktop.ini	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exeexplorer.exe

pid	process
1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
4120	explorer.exe
4120	explorer.exe
4120	explorer.exe
4120	explorer.exe
4120	explorer.exe
4120	explorer.exe
4120	explorer.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

description	pid	process	target process
PID 4832 set thread context of 1972	4832	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

5016 4120 WerFault.exe explorer.exe

pid	pid_target	process	target process
5016	4120	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:

4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exeexplorer.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.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

Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\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-1-5-21-2295526160-1155304984-640977766-1000\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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main explorer.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

explorer.exe

pid process

4120 explorer.exe
4120 explorer.exe
4120 explorer.exe
4120 explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe

pid	process
4120	explorer.exe
4120	explorer.exe
4120	explorer.exe
4120	explorer.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

pid	process
1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

pid process

1972 4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes:

4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exeexplorer.exe

description	pid	process
Token: SeDebugPrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeRestorePrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeBackupPrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeLoadDriverPrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeCreatePagefilePrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeShutdownPrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeTakeOwnershipPrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeChangeNotifyPrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeCreateTokenPrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeMachineAccountPrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeSecurityPrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeAssignPrimaryTokenPrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeCreateGlobalPrivilege	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: 33	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
Token: SeDebugPrivilege	4120	explorer.exe
Token: SeRestorePrivilege	4120	explorer.exe
Token: SeBackupPrivilege	4120	explorer.exe
Token: SeLoadDriverPrivilege	4120	explorer.exe
Token: SeCreatePagefilePrivilege	4120	explorer.exe
Token: SeShutdownPrivilege	4120	explorer.exe
Token: SeTakeOwnershipPrivilege	4120	explorer.exe
Token: SeChangeNotifyPrivilege	4120	explorer.exe
Token: SeCreateTokenPrivilege	4120	explorer.exe
Token: SeMachineAccountPrivilege	4120	explorer.exe
Token: SeSecurityPrivilege	4120	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	4120	explorer.exe
Token: SeCreateGlobalPrivilege	4120	explorer.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe

description	pid	process	target process
PID 4832 wrote to memory of 1972	4832	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
PID 4832 wrote to memory of 1972	4832	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
PID 4832 wrote to memory of 1972	4832	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
PID 4832 wrote to memory of 1972	4832	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
PID 4832 wrote to memory of 1972	4832	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
PID 4832 wrote to memory of 1972	4832	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
PID 4832 wrote to memory of 1972	4832	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
PID 4832 wrote to memory of 1972	4832	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
PID 4832 wrote to memory of 1972	4832	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
PID 4832 wrote to memory of 1972	4832	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
PID 1972 wrote to memory of 4120	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	explorer.exe
PID 1972 wrote to memory of 4120	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	explorer.exe
PID 1972 wrote to memory of 4120	1972	4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
"C:\Users\Admin\AppData\Local\Temp\4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4832

C:\Users\Admin\AppData\Local\Temp\4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe
"C:\Users\Admin\AppData\Local\Temp\4a1da031313919a6c6553d6608869a46f45c81f68290629497f1122615d1a7cf.exe"
2⤵
- Sets file execution options in registry
- Checks whether UAC is enabled
- Drops desktop.ini file(s)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972

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:4120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 1132
4⤵
- Program crash
PID:5016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4120 -ip 4120
1⤵
PID:1812

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

6

T1112

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

5

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nsa88DE.tmp\Maurois.dll
Filesize
196KB

MD5
05db9e17519dbffe3c4dbb038ec686b1

SHA1
be88fcf4047938903d1fa6953cf7661c7798f179

SHA256
ea388ed5b8039160d784f24ef2f8d92e5cee8b9caf6de3a1c9924564550f8248

SHA512
29097003d49074b07d9677d3d8d17246222f08300e8871bf3bc0b936c6f1d2dab83eff5f7df40dd68389a70b431ff7e5a8d738b780ab175d11efb94d2b37f0ac

Download Submit
memory/1972-140-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1972-142-0x0000000000600000-0x000000000060D000-memory.dmp

Filesize
52KB

Download
memory/1972-136-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1972-137-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1972-138-0x0000000002290000-0x00000000022F0000-memory.dmp

Filesize
384KB

Download
memory/1972-133-0x0000000000000000-mapping.dmp

Download
memory/1972-141-0x0000000002290000-0x00000000022F0000-memory.dmp

Filesize
384KB

Download
memory/1972-134-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1972-143-0x00000000027B0000-0x00000000027BC000-memory.dmp

Filesize
48KB

Download
memory/1972-145-0x0000000002290000-0x00000000022F0000-memory.dmp

Filesize
384KB

Download
memory/4120-144-0x0000000000000000-mapping.dmp

Download
memory/4120-146-0x00000000009A0000-0x0000000000DD3000-memory.dmp

Filesize
4.2MB

Download
memory/4120-147-0x00000000010E0000-0x0000000001193000-memory.dmp

Filesize
716KB

Download
memory/4120-148-0x00000000010E0000-0x0000000001193000-memory.dmp

Filesize
716KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads