Analysis Overview
SHA256
97a612d3c4a095e20f2bcea30a62793ca6fe4397b8676aceb8efbcbb13e717e7
Threat Level: Known bad
The file b251001041fe1c5c47ee953942dcf662 was found to be: Known bad.
Malicious Activity Summary
ModiLoader, DBatLoader
Modifies WinLogon for persistence
ModiLoader Second Stage
Sets DLL path for service in the registry
Deletes itself
Executes dropped EXE
Loads dropped DLL
Drops file in System32 directory
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-04 14:05
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-04 14:05
Reported
2024-03-04 14:08
Platform
win7-20240221-en
Max time kernel
140s
Max time network
143s
Command Line
Signatures
ModiLoader, DBatLoader
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\System32\\userinit.exe,\"C:\\Users\\Admin\\Favorites\\netservice.exe\"un userinit.exe" | C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe | N/A |
ModiLoader Second Stage
| 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 |
Sets DLL path for service in the registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\netrt\Parameters\ServiceDll = "C:\\Windows\\System32\\sysn.dll" | C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Favorites\netservice.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\sysn.dll | C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\sysn.dll | C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe
"C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe"
C:\Users\Admin\Favorites\netservice.exe
C:\Users\Admin\Favorites\netservice.exe
C:\Windows\SysWOW64\cmd.exe
cmd /c del "C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe"
C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k network
C:\Windows\SysWOW64\cmd.exe
cmd /c del "C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | cgq.8800.org | udp |
| IT | 93.46.8.90:8000 | cgq.8800.org | tcp |
| N/A | 10.127.1.2:80 | tcp | |
| IT | 93.46.8.90:8000 | cgq.8800.org | tcp |
| IT | 93.46.8.90:8000 | cgq.8800.org | tcp |
| N/A | 10.127.1.2:80 | tcp | |
| US | 8.8.8.8:53 | cgq.8800.org | udp |
| DE | 46.82.174.69:8000 | cgq.8800.org | tcp |
| DE | 46.82.174.69:8000 | cgq.8800.org | tcp |
| N/A | 10.127.1.2:80 | tcp | |
| DE | 46.82.174.69:8000 | cgq.8800.org | tcp |
Files
\Users\Admin\Favorites\netservice.exe
| MD5 | b251001041fe1c5c47ee953942dcf662 |
| SHA1 | 223ac182c32c524768d18152f86fe47dc0c1e4d7 |
| SHA256 | 97a612d3c4a095e20f2bcea30a62793ca6fe4397b8676aceb8efbcbb13e717e7 |
| SHA512 | a9a8507e8a1ce1866b8e65a6f8e91b870d9d09d14b5b820513e8e66adebeff4363138d2779eb465fe3ccc19917270794efd33e6db90f71cb0c705d2a2b625e0a |
memory/2156-10-0x0000000013140000-0x00000000131BA000-memory.dmp
\??\c:\windows\SysWOW64\sysn.dll
| MD5 | 56fbe3205570e6fe6c49dbd3ab98677f |
| SHA1 | c7db87b892af2e003fb8ab99221e7737c3d0cf51 |
| SHA256 | 78fd482e735a236883777a514035bb17169bcab8cece4b354d742cbbcaded9c0 |
| SHA512 | 6c02da097c5decc4587003f943f20388e0ee368b0c646cf2211cf30224ff35086f763fa372386ed1d4c09a598bae0efcdc194f44affcbb92afc59d0dcbb38d7e |
memory/2240-16-0x0000000013140000-0x00000000131BA000-memory.dmp
memory/2584-15-0x0000000000600000-0x0000000000668000-memory.dmp
\Windows\SysWOW64\sysn.dll
| MD5 | 51ce9d0ba81719576e8db8d9a692322a |
| SHA1 | a7dbaa43df003658beb71560a0be63494ba29777 |
| SHA256 | 0927ba82f435fcd4f15256092f5f4e730ef713e01c904dbc9b36e4ef6ec92422 |
| SHA512 | 4bd15ba0b19a85f6dac1014704648d67e55176572bfa71c12d91e7771b68a53ef2e8b4a4c662ed86d7fc900891ecce3125d5fd15dd3cc2f9786d570579228cfc |
memory/2584-17-0x0000000000600000-0x0000000000668000-memory.dmp
memory/2584-19-0x0000000000600000-0x0000000000668000-memory.dmp
memory/2584-21-0x0000000000600000-0x0000000000668000-memory.dmp
memory/2584-23-0x0000000000600000-0x0000000000668000-memory.dmp
memory/2584-25-0x0000000000600000-0x0000000000668000-memory.dmp
memory/2584-27-0x0000000000600000-0x0000000000668000-memory.dmp
memory/2584-29-0x0000000000600000-0x0000000000668000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-04 14:05
Reported
2024-03-04 14:08
Platform
win10v2004-20240226-en
Max time kernel
150s
Max time network
150s
Command Line
Signatures
ModiLoader, DBatLoader
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\System32\\userinit.exe,\"C:\\Users\\Admin\\Favorites\\netservice.exe\"un userinit.exe" | C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe | N/A |
ModiLoader Second Stage
| 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 |
Sets DLL path for service in the registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\netrt\Parameters\ServiceDll = "C:\\Windows\\System32\\sysn.dll" | C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Favorites\netservice.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\sysn.dll | C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\sysn.dll | C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe
"C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe"
C:\Users\Admin\Favorites\netservice.exe
C:\Users\Admin\Favorites\netservice.exe
C:\Windows\SysWOW64\cmd.exe
cmd /c del "C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe"
C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k network
C:\Windows\SysWOW64\cmd.exe
cmd /c del "C:\Users\Admin\AppData\Local\Temp\b251001041fe1c5c47ee953942dcf662.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | cgq.8800.org | udp |
| IT | 93.46.8.90:8000 | cgq.8800.org | tcp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| N/A | 10.127.0.112:80 | tcp | |
| IT | 93.46.8.90:8000 | cgq.8800.org | tcp |
| US | 8.8.8.8:53 | 202.178.17.96.in-addr.arpa | udp |
| IT | 93.46.8.90:8000 | cgq.8800.org | tcp |
| N/A | 10.127.0.112:80 | tcp | |
| US | 8.8.8.8:53 | 170.191.110.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | cgq.8800.org | udp |
| N/A | 10.127.0.112:80 | tcp | |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| N/A | 10.127.0.112:80 | tcp | |
| US | 8.8.8.8:53 | cgq.8800.org | udp |
| KR | 59.24.3.174:8000 | cgq.8800.org | tcp |
| KR | 59.24.3.174:8000 | cgq.8800.org | tcp |
| N/A | 10.127.0.112:80 | tcp | |
| KR | 59.24.3.174:8000 | cgq.8800.org | tcp |
| US | 8.8.8.8:53 | udp |
Files
C:\Users\Admin\Favorites\netservice.exe
| MD5 | b251001041fe1c5c47ee953942dcf662 |
| SHA1 | 223ac182c32c524768d18152f86fe47dc0c1e4d7 |
| SHA256 | 97a612d3c4a095e20f2bcea30a62793ca6fe4397b8676aceb8efbcbb13e717e7 |
| SHA512 | a9a8507e8a1ce1866b8e65a6f8e91b870d9d09d14b5b820513e8e66adebeff4363138d2779eb465fe3ccc19917270794efd33e6db90f71cb0c705d2a2b625e0a |
memory/2792-8-0x0000000013140000-0x00000000131BA000-memory.dmp
\??\c:\windows\SysWOW64\sysn.dll
| MD5 | 51ce9d0ba81719576e8db8d9a692322a |
| SHA1 | a7dbaa43df003658beb71560a0be63494ba29777 |
| SHA256 | 0927ba82f435fcd4f15256092f5f4e730ef713e01c904dbc9b36e4ef6ec92422 |
| SHA512 | 4bd15ba0b19a85f6dac1014704648d67e55176572bfa71c12d91e7771b68a53ef2e8b4a4c662ed86d7fc900891ecce3125d5fd15dd3cc2f9786d570579228cfc |
memory/3720-11-0x0000000013140000-0x00000000131BA000-memory.dmp
memory/2484-12-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2484-14-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2484-16-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2484-18-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2484-20-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2484-23-0x0000000000400000-0x0000000000468000-memory.dmp