Analysis Overview
SHA256
cc5d048942af05983d2f2495d36c63164ac1ef6eeca86ce7835eae706dab476b
Threat Level: Known bad
The file Windows-1.exe was found to be: Known bad.
Malicious Activity Summary
BlackNET Payload
Blacknet family
Contains code to disable Windows Defender
BlackNET
Executes dropped EXE
Adds Run key to start application
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-08-05 15:39
Signatures
BlackNET Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Blacknet family
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2020-09-17 14:15
Reported
2020-09-17 14:17
Platform
win7v200722
Max time kernel
13s
Max time network
13s
Command Line
Signatures
BlackNET
BlackNET Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-403932158-3302036622-1224131197-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows-1.exe" | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-403932158-3302036622-1224131197-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1056 wrote to memory of 1892 | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
| PID 1056 wrote to memory of 1892 | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
| PID 1056 wrote to memory of 1892 | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Windows-1.exe
"C:\Users\Admin\AppData\Local\Temp\Windows-1.exe"
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
"C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | nicurb.com | udp |
| N/A | 104.27.134.41:443 | nicurb.com | tcp |
Files
memory/1056-0-0x000007FEF6760000-0x000007FEF70FD000-memory.dmp
memory/1056-1-0x000007FEF6760000-0x000007FEF70FD000-memory.dmp
memory/1892-3-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | cb4edb342a3da971a69d4a1cf39175d0 |
| SHA1 | eff2200d4301abae9e4b17f35bd5fab150f6cce1 |
| SHA256 | cc5d048942af05983d2f2495d36c63164ac1ef6eeca86ce7835eae706dab476b |
| SHA512 | 5bc82c1c2fdf88f0e93c0bb4825058c8e2f7316b506dece23c70fc2f9b7c2b3eacddc82682cbaae028dcfd4851b0c37322a7bf513bf30411eb2bcc4ee4abaecf |
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | cb4edb342a3da971a69d4a1cf39175d0 |
| SHA1 | eff2200d4301abae9e4b17f35bd5fab150f6cce1 |
| SHA256 | cc5d048942af05983d2f2495d36c63164ac1ef6eeca86ce7835eae706dab476b |
| SHA512 | 5bc82c1c2fdf88f0e93c0bb4825058c8e2f7316b506dece23c70fc2f9b7c2b3eacddc82682cbaae028dcfd4851b0c37322a7bf513bf30411eb2bcc4ee4abaecf |
memory/1892-6-0x000007FEF6760000-0x000007FEF70FD000-memory.dmp
memory/1892-7-0x000007FEF6760000-0x000007FEF70FD000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2020-09-17 14:15
Reported
2020-09-17 14:17
Platform
win10v200722
Max time kernel
37s
Max time network
145s
Command Line
Signatures
BlackNET
BlackNET Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows-1.exe" | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3816 wrote to memory of 292 | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
| PID 3816 wrote to memory of 292 | N/A | C:\Users\Admin\AppData\Local\Temp\Windows-1.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Windows-1.exe
"C:\Users\Admin\AppData\Local\Temp\Windows-1.exe"
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
"C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | nicurb.com | udp |
| N/A | 104.27.134.41:443 | nicurb.com | tcp |
| N/A | 104.27.134.41:443 | nicurb.com | tcp |
| N/A | 104.27.134.41:443 | nicurb.com | tcp |
Files
memory/3816-0-0x00007FF9A7D00000-0x00007FF9A86A0000-memory.dmp
memory/292-1-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | cb4edb342a3da971a69d4a1cf39175d0 |
| SHA1 | eff2200d4301abae9e4b17f35bd5fab150f6cce1 |
| SHA256 | cc5d048942af05983d2f2495d36c63164ac1ef6eeca86ce7835eae706dab476b |
| SHA512 | 5bc82c1c2fdf88f0e93c0bb4825058c8e2f7316b506dece23c70fc2f9b7c2b3eacddc82682cbaae028dcfd4851b0c37322a7bf513bf30411eb2bcc4ee4abaecf |
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | cb4edb342a3da971a69d4a1cf39175d0 |
| SHA1 | eff2200d4301abae9e4b17f35bd5fab150f6cce1 |
| SHA256 | cc5d048942af05983d2f2495d36c63164ac1ef6eeca86ce7835eae706dab476b |
| SHA512 | 5bc82c1c2fdf88f0e93c0bb4825058c8e2f7316b506dece23c70fc2f9b7c2b3eacddc82682cbaae028dcfd4851b0c37322a7bf513bf30411eb2bcc4ee4abaecf |
memory/292-4-0x00007FF9A7D00000-0x00007FF9A86A0000-memory.dmp