Analysis Overview
SHA256
23abe80bf01902aca2c57c6494ef60780187a870d01d964790306a10b3fa23ad
Threat Level: Known bad
The file jbit.exe was found to be: Known bad.
Malicious Activity Summary
BitRAT
Drops startup file
UPX packed file
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-08-05 23:48
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-08-05 23:48
Reported
2023-08-05 23:51
Platform
win7-20230712-en
Max time kernel
119s
Max time network
127s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\jbit.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3048 wrote to memory of 2800 | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 3048 wrote to memory of 2800 | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 3048 wrote to memory of 2800 | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 3048 wrote to memory of 2800 | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\jbit.exe
"C:\Users\Admin\AppData\Local\Temp\jbit.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3048 -s 1116
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | winyardbuilding.nz | udp |
| AU | 114.142.162.97:443 | winyardbuilding.nz | tcp |
Files
memory/3048-54-0x0000000073E00000-0x00000000744EE000-memory.dmp
memory/3048-55-0x0000000000BD0000-0x0000000005CE8000-memory.dmp
memory/3048-56-0x0000000000A00000-0x0000000000A40000-memory.dmp
memory/3048-57-0x0000000073E00000-0x00000000744EE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-08-05 23:48
Reported
2023-08-05 23:51
Platform
win10v2004-20230703-en
Max time kernel
143s
Max time network
159s
Command Line
Signatures
BitRAT
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Skktdrerof.vbs | C:\Users\Admin\AppData\Local\Temp\jbit.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3968 set thread context of 3044 | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3968 wrote to memory of 3044 | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
| PID 3968 wrote to memory of 3044 | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
| PID 3968 wrote to memory of 3044 | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
| PID 3968 wrote to memory of 3044 | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
| PID 3968 wrote to memory of 3044 | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
| PID 3968 wrote to memory of 3044 | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
| PID 3968 wrote to memory of 3044 | N/A | C:\Users\Admin\AppData\Local\Temp\jbit.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\jbit.exe
"C:\Users\Admin\AppData\Local\Temp\jbit.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | winyardbuilding.nz | udp |
| AU | 114.142.162.97:443 | winyardbuilding.nz | tcp |
| US | 8.8.8.8:53 | 97.162.142.114.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.8.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | backu4734.duckdns.org | udp |
| DE | 167.235.75.225:7904 | backu4734.duckdns.org | tcp |
| DE | 167.235.75.225:7904 | backu4734.duckdns.org | tcp |
| DE | 167.235.75.225:7904 | backu4734.duckdns.org | tcp |
| DE | 167.235.75.225:7904 | backu4734.duckdns.org | tcp |
| US | 8.8.8.8:53 | 10.179.89.13.in-addr.arpa | udp |
| DE | 167.235.75.225:7904 | backu4734.duckdns.org | tcp |
| US | 8.8.8.8:53 | backu4734.duckdns.org | udp |
Files
memory/3968-133-0x0000000074770000-0x0000000074F20000-memory.dmp
memory/3968-134-0x00000000004E0000-0x00000000055F8000-memory.dmp
memory/3968-135-0x000000000A5F0000-0x000000000AB94000-memory.dmp
memory/3968-136-0x000000000A040000-0x000000000A0D2000-memory.dmp
memory/3968-137-0x0000000009F80000-0x0000000009F90000-memory.dmp
memory/3968-138-0x0000000009FF0000-0x0000000009FFA000-memory.dmp
memory/3968-139-0x0000000074770000-0x0000000074F20000-memory.dmp
memory/3968-140-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-141-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-143-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-145-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-147-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-149-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-151-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-153-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-155-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-157-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-159-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-161-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-163-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-165-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-167-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-169-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-172-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-171-0x0000000009F80000-0x0000000009F90000-memory.dmp
memory/3968-174-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-176-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-178-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-180-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-182-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-184-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-186-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-188-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-190-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-192-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-194-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-196-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-198-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-200-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-202-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-204-0x000000000CAF0000-0x000000000CD08000-memory.dmp
memory/3968-1217-0x000000000BE30000-0x000000000BE31000-memory.dmp
memory/3968-1224-0x0000000074770000-0x0000000074F20000-memory.dmp
memory/3044-1226-0x0000000000400000-0x00000000007E4000-memory.dmp
memory/3044-1228-0x00000000745C0000-0x00000000745F9000-memory.dmp
memory/3044-1236-0x0000000074960000-0x0000000074999000-memory.dmp
memory/3044-1239-0x0000000074960000-0x0000000074999000-memory.dmp
memory/3044-1240-0x0000000000400000-0x00000000007E4000-memory.dmp
memory/3044-1243-0x0000000074960000-0x0000000074999000-memory.dmp
memory/3044-1246-0x0000000074960000-0x0000000074999000-memory.dmp
memory/3044-1249-0x0000000074960000-0x0000000074999000-memory.dmp