Analysis Overview
SHA256
b15d06c92a2acee2c7886a65947f8eb4b3198198b4ac62de16a83d67cf534c67
Threat Level: Known bad
The file rk.eng.br.dll was found to be: Known bad.
Malicious Activity Summary
Qakbot/Qbot
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-03-10 18:35
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-03-10 18:35
Reported
2023-03-10 18:38
Platform
win7-20230220-en
Max time kernel
150s
Max time network
31s
Command Line
Signatures
Qakbot/Qbot
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\rk.eng.br.dll XL55
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\rk.eng.br.dll XL55
C:\Windows\SysWOW64\wermgr.exe
C:\Windows\SysWOW64\wermgr.exe
Network
Files
memory/1636-54-0x0000000000190000-0x00000000001B3000-memory.dmp
memory/1636-59-0x0000000000190000-0x00000000001B3000-memory.dmp
memory/684-60-0x00000000000B0000-0x00000000000B2000-memory.dmp
memory/1636-61-0x0000000000190000-0x00000000001B3000-memory.dmp
memory/684-63-0x0000000000080000-0x00000000000A3000-memory.dmp
memory/684-64-0x0000000000080000-0x00000000000A3000-memory.dmp
memory/684-65-0x0000000000080000-0x00000000000A3000-memory.dmp
memory/684-66-0x0000000000080000-0x00000000000A3000-memory.dmp
memory/684-67-0x0000000000080000-0x00000000000A3000-memory.dmp
memory/684-68-0x0000000000080000-0x00000000000A3000-memory.dmp
memory/684-70-0x0000000000080000-0x00000000000A3000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-03-10 18:35
Reported
2023-03-10 18:38
Platform
win10v2004-20230220-en
Max time kernel
150s
Max time network
127s
Command Line
Signatures
Qakbot/Qbot
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 316 wrote to memory of 1988 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 316 wrote to memory of 1988 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 316 wrote to memory of 1988 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1988 wrote to memory of 3864 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\wermgr.exe |
| PID 1988 wrote to memory of 3864 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\wermgr.exe |
| PID 1988 wrote to memory of 3864 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\wermgr.exe |
| PID 1988 wrote to memory of 3864 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\wermgr.exe |
| PID 1988 wrote to memory of 3864 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\wermgr.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\rk.eng.br.dll XL55
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\rk.eng.br.dll XL55
C:\Windows\SysWOW64\wermgr.exe
C:\Windows\SysWOW64\wermgr.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 199.176.139.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.145.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.238.32.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.38.195.152.in-addr.arpa | udp |
| US | 20.42.65.85:443 | tcp | |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| US | 8.8.8.8:53 | 44.8.109.52.in-addr.arpa | udp |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| NL | 173.223.113.131:80 | tcp |
Files
memory/1988-138-0x0000000000A70000-0x0000000000A93000-memory.dmp
memory/1988-133-0x0000000000A70000-0x0000000000A93000-memory.dmp
memory/1988-139-0x0000000000A60000-0x0000000000A63000-memory.dmp
memory/1988-140-0x0000000000A70000-0x0000000000A93000-memory.dmp
memory/3864-142-0x0000000001230000-0x0000000001253000-memory.dmp
memory/3864-143-0x0000000001230000-0x0000000001253000-memory.dmp
memory/3864-144-0x0000000001230000-0x0000000001253000-memory.dmp
memory/3864-145-0x0000000001230000-0x0000000001253000-memory.dmp
memory/3864-146-0x0000000001230000-0x0000000001253000-memory.dmp
memory/3864-148-0x0000000001230000-0x0000000001253000-memory.dmp
memory/3864-150-0x0000000001230000-0x0000000001253000-memory.dmp