Analysis Overview
SHA256
5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531
Threat Level: Known bad
The file 5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531 was found to be: Known bad.
Malicious Activity Summary
BetaBot
Modifies firewall policy service
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 use of AdjustPrivilegeToken
Modifies Internet Explorer Protected Mode
Modifies Internet Explorer Protected Mode Banner
Suspicious behavior: MapViewOfSection
Suspicious behavior: RenamesItself
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Enumerates system info in registry
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-08-02 02:59
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-08-02 02:58
Reported
2022-08-02 04:32
Platform
win7-20220718-en
Max time kernel
151s
Max time network
157s
Command Line
Signatures
BetaBot
Modifies firewall policy service
| 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
| Description | Indicator | Process | Target |
| 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 = "rcplymyims.exe" | C:\Windows\SysWOW64\explorer.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\a7ioy137w9e9w.exe | C:\Users\Admin\AppData\Local\Temp\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\a7ioy137w9e9w.exe\DisableExceptionChainValidation | C:\Users\Admin\AppData\Local\Temp\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.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
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce | C:\Windows\SysWOW64\explorer.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Windows Font Preloader Service = "C:\\ProgramData\\Windows Font Preloader Service\\a7ioy137w9e9w.exe" | C:\Windows\SysWOW64\explorer.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | C:\Windows\SysWOW64\explorer.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Font Preloader Service = "\"C:\\ProgramData\\Windows Font Preloader Service\\a7ioy137w9e9w.exe\"" | C:\Windows\SysWOW64\explorer.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.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\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.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-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" | C:\Windows\SysWOW64\explorer.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" | C:\Windows\SysWOW64\explorer.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3" | C:\Windows\SysWOW64\explorer.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\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-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" | C:\Windows\SysWOW64\explorer.exe | N/A |
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Internet Explorer\Main | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.exe
"C:\Users\Admin\AppData\Local\Temp\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.exe"
C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 20.112.52.29:80 | microsoft.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/860-54-0x0000000075851000-0x0000000075853000-memory.dmp
memory/860-55-0x0000000000320000-0x0000000000399000-memory.dmp
memory/860-56-0x0000000000400000-0x00000000004AE000-memory.dmp
memory/860-58-0x00000000004B0000-0x0000000000516000-memory.dmp
memory/860-61-0x00000000003F0000-0x00000000003FD000-memory.dmp
memory/860-60-0x00000000004B0000-0x0000000000516000-memory.dmp
memory/860-62-0x00000000008A0000-0x00000000008AC000-memory.dmp
memory/984-63-0x0000000000000000-mapping.dmp
memory/984-65-0x0000000074BE1000-0x0000000074BE3000-memory.dmp
memory/860-66-0x0000000000400000-0x00000000004AE000-memory.dmp
memory/860-67-0x00000000004B0000-0x0000000000516000-memory.dmp
memory/984-68-0x00000000776A0000-0x0000000077820000-memory.dmp
memory/984-70-0x0000000000660000-0x000000000066C000-memory.dmp
memory/984-69-0x00000000001A0000-0x0000000000293000-memory.dmp
memory/1412-71-0x0000000002210000-0x0000000002216000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-08-02 02:58
Reported
2022-08-02 04:32
Platform
win10v2004-20220721-en
Max time kernel
145s
Max time network
150s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.exe
"C:\Users\Admin\AppData\Local\Temp\5a99bc6aa70681c21c6eb298a479f3d72ff16b033129d750cf8249ee24ed9531.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4440 -ip 4440
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 228
Network
| Country | Destination | Domain | Proto |
| US | 209.197.3.8:80 | tcp | |
| FR | 2.22.22.184:443 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 20.189.173.11:443 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| US | 8.8.8.8:53 | 14.110.152.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 6.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.3.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa | udp |
Files
memory/4440-130-0x0000000000620000-0x0000000000699000-memory.dmp