Analysis Overview
SHA256
4a2c1f3c1df5c34f1c99c8f7cc8b18fae2c71189e6e383face3ff7fa31224f52
Threat Level: Known bad
The file opo.exe was found to be: Known bad.
Malicious Activity Summary
Snakebot family
CoreEntity .NET Packer
AgentTesla
Contains SnakeBOT related strings
rezer0
AgentTesla Payload
Drops file in Drivers directory
Disables Task Manager via registry modification
Suspicious use of SetThreadContext
Program crash
Modifies registry key
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2020-11-09 19:37
Signatures
Snakebot family
Contains SnakeBOT related strings
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2020-11-09 19:37
Reported
2020-11-09 22:07
Platform
win7v20201028
Max time kernel
69s
Max time network
17s
Command Line
Signatures
AgentTesla
CoreEntity .NET Packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
AgentTesla Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
rezer0
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Disables Task Manager via registry modification
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\system32\drivers\etc\hosts | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1764 set thread context of 1268 | N/A | C:\Users\Admin\AppData\Local\Temp\opo.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\REG.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\opo.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\opo.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\opo.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\opo.exe
"C:\Users\Admin\AppData\Local\Temp\opo.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
Network
Files
memory/1764-0-0x0000000074DD0000-0x00000000754BE000-memory.dmp
memory/1764-1-0x0000000000BA0000-0x0000000000BA1000-memory.dmp
memory/1992-3-0x000007FEF7F80000-0x000007FEF81FA000-memory.dmp
memory/1764-4-0x0000000000900000-0x0000000000903000-memory.dmp
memory/1764-5-0x00000000042C0000-0x0000000004313000-memory.dmp
memory/1268-6-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1268-7-0x000000000044CEEE-mapping.dmp
memory/1268-8-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1268-9-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1268-10-0x0000000074DD0000-0x00000000754BE000-memory.dmp
memory/1704-13-0x0000000000000000-mapping.dmp
memory/948-14-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2020-11-09 19:37
Reported
2020-11-09 22:07
Platform
win10v20201028
Max time kernel
147s
Max time network
150s
Command Line
Signatures
AgentTesla
CoreEntity .NET Packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
AgentTesla Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
rezer0
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Disables Task Manager via registry modification
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\system32\drivers\etc\hosts | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 728 set thread context of 1952 | N/A | C:\Users\Admin\AppData\Local\Temp\opo.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\REG.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\opo.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\opo.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\opo.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\opo.exe
"C:\Users\Admin\AppData\Local\Temp\opo.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1952 -s 1460
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | www.google.com.br | udp |
| N/A | 172.217.19.195:443 | www.google.com.br | tcp |
| N/A | 13.107.4.52:80 | www.msftconnecttest.com | tcp |
Files
memory/728-0-0x0000000073EE0000-0x00000000745CE000-memory.dmp
memory/728-1-0x0000000000770000-0x0000000000771000-memory.dmp
memory/728-3-0x0000000007A00000-0x0000000007A01000-memory.dmp
memory/728-4-0x00000000075A0000-0x00000000075A1000-memory.dmp
memory/728-5-0x0000000007500000-0x0000000007501000-memory.dmp
memory/728-14-0x0000000002A10000-0x0000000002A13000-memory.dmp
memory/728-15-0x000000000ABE0000-0x000000000AC33000-memory.dmp
memory/728-16-0x000000000ACE0000-0x000000000ACE1000-memory.dmp
memory/1952-17-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1952-18-0x000000000044CEEE-mapping.dmp
memory/1952-19-0x0000000073EE0000-0x00000000745CE000-memory.dmp
memory/1952-24-0x0000000005030000-0x0000000005031000-memory.dmp
memory/1952-25-0x0000000005C50000-0x0000000005C51000-memory.dmp
memory/4020-26-0x0000000000000000-mapping.dmp
memory/2272-27-0x0000000004AC0000-0x0000000004AC1000-memory.dmp
memory/1952-28-0x000000000044CEEE-mapping.dmp
memory/1952-29-0x000000000044CEEE-mapping.dmp
memory/1952-30-0x000000000044CEEE-mapping.dmp
memory/1952-31-0x000000000044CEEE-mapping.dmp
memory/1952-33-0x000000000044CEEE-mapping.dmp
memory/1952-34-0x000000000044CEEE-mapping.dmp
memory/1952-35-0x000000000044CEEE-mapping.dmp
memory/1952-37-0x000000000044CEEE-mapping.dmp
memory/1952-38-0x000000000044CEEE-mapping.dmp
memory/1952-36-0x000000000044CEEE-mapping.dmp
memory/1952-32-0x000000000044CEEE-mapping.dmp
memory/2272-39-0x00000000052F0000-0x00000000052F1000-memory.dmp