Analysis Overview
SHA256
c214b31584d7f10aac62a292961052fecb27885fede2efe65c7f4cc40ae6dce0
Threat Level: Known bad
The file test2.exe was found to be: Known bad.
Malicious Activity Summary
Blacknet family
Contains code to disable Windows Defender
BlackNET
BlackNET Payload
Executes dropped EXE
Adds Run key to start application
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
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 14:14
Reported
2020-09-17 14:16
Platform
win7
Max time kernel
13s
Max time network
17s
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-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\test2.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\test2.exe" | C:\Users\Admin\AppData\Local\Temp\test2.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\test2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\test2.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\test2.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\test2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\test2.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 112 wrote to memory of 824 | N/A | C:\Users\Admin\AppData\Local\Temp\test2.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
| PID 112 wrote to memory of 824 | N/A | C:\Users\Admin\AppData\Local\Temp\test2.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
| PID 112 wrote to memory of 824 | N/A | C:\Users\Admin\AppData\Local\Temp\test2.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\test2.exe
"C:\Users\Admin\AppData\Local\Temp\test2.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/112-0-0x000007FEF6550000-0x000007FEF6EED000-memory.dmp
memory/112-1-0x000007FEF6550000-0x000007FEF6EED000-memory.dmp
memory/824-2-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | 44ae5900e0b03963ee0a02e72f004fc1 |
| SHA1 | fdebc2d4c5f5f79c10dab9197875aa5964f9f72e |
| SHA256 | c214b31584d7f10aac62a292961052fecb27885fede2efe65c7f4cc40ae6dce0 |
| SHA512 | e3baa84f2b1a0e64aaedb0568ade8ae50d7acfddec1880aa7927dc3a8485ed598b49183d1ea953cc6e72e282e3cb002e7bf471f31bf5ec99ccacda2a910cb7bb |
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | 44ae5900e0b03963ee0a02e72f004fc1 |
| SHA1 | fdebc2d4c5f5f79c10dab9197875aa5964f9f72e |
| SHA256 | c214b31584d7f10aac62a292961052fecb27885fede2efe65c7f4cc40ae6dce0 |
| SHA512 | e3baa84f2b1a0e64aaedb0568ade8ae50d7acfddec1880aa7927dc3a8485ed598b49183d1ea953cc6e72e282e3cb002e7bf471f31bf5ec99ccacda2a910cb7bb |
memory/824-5-0x000007FEF6550000-0x000007FEF6EED000-memory.dmp
memory/824-6-0x000007FEF6550000-0x000007FEF6EED000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2020-09-17 14:14
Reported
2020-09-17 14:16
Platform
win10
Max time kernel
39s
Max time network
151s
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-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\test2.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\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 |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\test2.exe" | C:\Users\Admin\AppData\Local\Temp\test2.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\test2.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\test2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\test2.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 3024 wrote to memory of 1772 | N/A | C:\Users\Admin\AppData\Local\Temp\test2.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
| PID 3024 wrote to memory of 1772 | N/A | C:\Users\Admin\AppData\Local\Temp\test2.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\test2.exe
"C:\Users\Admin\AppData\Local\Temp\test2.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/3024-0-0x00007FFF5D750000-0x00007FFF5E0F0000-memory.dmp
memory/1772-1-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | 44ae5900e0b03963ee0a02e72f004fc1 |
| SHA1 | fdebc2d4c5f5f79c10dab9197875aa5964f9f72e |
| SHA256 | c214b31584d7f10aac62a292961052fecb27885fede2efe65c7f4cc40ae6dce0 |
| SHA512 | e3baa84f2b1a0e64aaedb0568ade8ae50d7acfddec1880aa7927dc3a8485ed598b49183d1ea953cc6e72e282e3cb002e7bf471f31bf5ec99ccacda2a910cb7bb |
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | 44ae5900e0b03963ee0a02e72f004fc1 |
| SHA1 | fdebc2d4c5f5f79c10dab9197875aa5964f9f72e |
| SHA256 | c214b31584d7f10aac62a292961052fecb27885fede2efe65c7f4cc40ae6dce0 |
| SHA512 | e3baa84f2b1a0e64aaedb0568ade8ae50d7acfddec1880aa7927dc3a8485ed598b49183d1ea953cc6e72e282e3cb002e7bf471f31bf5ec99ccacda2a910cb7bb |
memory/1772-4-0x00007FFF5D750000-0x00007FFF5E0F0000-memory.dmp