Analysis Overview
SHA256
c3cad420d5e8e63d11b2b00d198db8cdf12018ab7080f870b21e29f89a897868
Threat Level: Known bad
The file 17e73f5c5a7ffa3797a0bdc1816d347b.exe was found to be: Known bad.
Malicious Activity Summary
BlackNET Payload
BlackNET
Blacknet family
Contains code to disable Windows Defender
Executes dropped EXE
Adds Run key to start application
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
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
2021-04-21 22:02
Reported
2021-04-21 22:04
Platform
win7v20210408
Max time kernel
18s
Max time network
21s
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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\e162b1333458a713bc6916cc8ac4110c = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.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\17e73f5c5a7ffa3797a0bdc1816d347b.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\17e73f5c5a7ffa3797a0bdc1816d347b.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.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 1824 wrote to memory of 1060 | N/A | C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
| PID 1824 wrote to memory of 1060 | N/A | C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
| PID 1824 wrote to memory of 1060 | N/A | C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.exe
"C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.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 | www.rtmmodz.a2hosted.com | udp |
| N/A | 70.32.23.82:80 | www.rtmmodz.a2hosted.com | tcp |
Files
memory/1824-59-0x0000000000950000-0x0000000000951000-memory.dmp
memory/1824-61-0x000000001AD00000-0x000000001AD02000-memory.dmp
memory/1824-62-0x000000001AD02000-0x000000001AD03000-memory.dmp
memory/1824-64-0x000000001AD09000-0x000000001AD28000-memory.dmp
memory/1824-63-0x000000001AD04000-0x000000001AD05000-memory.dmp
memory/1060-65-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | 17e73f5c5a7ffa3797a0bdc1816d347b |
| SHA1 | 1f7266ab6bd84cb14c9ea97f03260aa4cc363135 |
| SHA256 | c3cad420d5e8e63d11b2b00d198db8cdf12018ab7080f870b21e29f89a897868 |
| SHA512 | 66eea79ef843663ef26596c56f3a98119b2aa7ed3d302ddcb56a523cd61bb392de7276a7d8a63b23d2daa3685ab87d1910e4c5e35ace1458fa74c8b1baf8afd3 |
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | 17e73f5c5a7ffa3797a0bdc1816d347b |
| SHA1 | 1f7266ab6bd84cb14c9ea97f03260aa4cc363135 |
| SHA256 | c3cad420d5e8e63d11b2b00d198db8cdf12018ab7080f870b21e29f89a897868 |
| SHA512 | 66eea79ef843663ef26596c56f3a98119b2aa7ed3d302ddcb56a523cd61bb392de7276a7d8a63b23d2daa3685ab87d1910e4c5e35ace1458fa74c8b1baf8afd3 |
memory/1060-68-0x0000000000E00000-0x0000000000E01000-memory.dmp
memory/1060-72-0x000000001B2E4000-0x000000001B2E5000-memory.dmp
memory/1060-71-0x000000001B2E2000-0x000000001B2E3000-memory.dmp
memory/1060-70-0x000000001B2E0000-0x000000001B2E2000-memory.dmp
memory/1060-73-0x000000001B2E9000-0x000000001B308000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2021-04-21 22:02
Reported
2021-04-21 22:04
Platform
win10v20210410
Max time kernel
150s
Max time network
150s
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-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\e162b1333458a713bc6916cc8ac4110c = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.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\17e73f5c5a7ffa3797a0bdc1816d347b.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\17e73f5c5a7ffa3797a0bdc1816d347b.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.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 2820 wrote to memory of 3496 | N/A | C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
| PID 2820 wrote to memory of 3496 | N/A | C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.exe
"C:\Users\Admin\AppData\Local\Temp\17e73f5c5a7ffa3797a0bdc1816d347b.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 | www.rtmmodz.a2hosted.com | udp |
| N/A | 70.32.23.82:80 | www.rtmmodz.a2hosted.com | tcp |
| N/A | 70.32.23.82:80 | www.rtmmodz.a2hosted.com | tcp |
| N/A | 70.32.23.82:80 | www.rtmmodz.a2hosted.com | tcp |
| N/A | 70.32.23.82:80 | www.rtmmodz.a2hosted.com | tcp |
Files
memory/2820-114-0x0000000000EA0000-0x0000000000EA1000-memory.dmp
memory/2820-116-0x000000001BD60000-0x000000001BD62000-memory.dmp
memory/2820-118-0x000000001BD62000-0x000000001BD63000-memory.dmp
memory/2820-117-0x000000001BD63000-0x000000001BD64000-memory.dmp
memory/3496-119-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | 17e73f5c5a7ffa3797a0bdc1816d347b |
| SHA1 | 1f7266ab6bd84cb14c9ea97f03260aa4cc363135 |
| SHA256 | c3cad420d5e8e63d11b2b00d198db8cdf12018ab7080f870b21e29f89a897868 |
| SHA512 | 66eea79ef843663ef26596c56f3a98119b2aa7ed3d302ddcb56a523cd61bb392de7276a7d8a63b23d2daa3685ab87d1910e4c5e35ace1458fa74c8b1baf8afd3 |
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | 17e73f5c5a7ffa3797a0bdc1816d347b |
| SHA1 | 1f7266ab6bd84cb14c9ea97f03260aa4cc363135 |
| SHA256 | c3cad420d5e8e63d11b2b00d198db8cdf12018ab7080f870b21e29f89a897868 |
| SHA512 | 66eea79ef843663ef26596c56f3a98119b2aa7ed3d302ddcb56a523cd61bb392de7276a7d8a63b23d2daa3685ab87d1910e4c5e35ace1458fa74c8b1baf8afd3 |
memory/3496-125-0x000000001AD60000-0x000000001AD62000-memory.dmp
memory/2820-124-0x000000001BD65000-0x000000001BD67000-memory.dmp
memory/3496-126-0x000000001AD63000-0x000000001AD64000-memory.dmp
memory/3496-127-0x000000001AD62000-0x000000001AD63000-memory.dmp
memory/3496-128-0x000000001AD65000-0x000000001AD67000-memory.dmp