Analysis Overview
SHA256
a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e
Threat Level: Known bad
The file a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e was found to be: Known bad.
Malicious Activity Summary
BlackNET
Executes dropped EXE
Checks computer location settings
Adds Run key to start application
Suspicious use of NtSetInformationThreadHideFromDebugger
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-15 02:08
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-15 02:08
Reported
2022-04-15 02:18
Platform
win7-20220414-en
Max time kernel
148s
Max time network
48s
Command Line
Signatures
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe | N/A |
Suspicious use of SetWindowsHookEx
Processes
C:\Users\Admin\AppData\Local\Temp\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe
"C:\Users\Admin\AppData\Local\Temp\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe"
Network
Files
memory/1624-54-0x0000000075C71000-0x0000000075C73000-memory.dmp
memory/1624-55-0x00000000740B0000-0x000000007465B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-04-15 02:08
Reported
2022-04-15 02:19
Platform
win10v2004-20220414-en
Max time kernel
78s
Max time network
157s
Command Line
Signatures
BlackNET
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\530aa54a7f8da22dfa9151c567c09315 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe" | C:\Users\Admin\AppData\Local\Temp\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\530aa54a7f8da22dfa9151c567c09315 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\530aa54a7f8da22dfa9151c567c09315 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
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\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe | N/A |
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4968 wrote to memory of 1124 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
| PID 4968 wrote to memory of 1124 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
| PID 4968 wrote to memory of 1124 | N/A | C:\Users\Admin\AppData\Local\Temp\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe | C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.exe
"C:\Users\Admin\AppData\Local\Temp\a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e.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 |
| US | 8.8.8.8:53 | windows-install-update.duckdns.org | udp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| NL | 104.110.191.133:80 | tcp | |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
| RU | 95.181.172.241:443 | windows-install-update.duckdns.org | tcp |
Files
memory/4968-130-0x0000000073F00000-0x00000000744B1000-memory.dmp
memory/4968-131-0x0000000003757000-0x0000000003759000-memory.dmp
memory/1124-132-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | 9fd83afa4f050599f081eaa6b36b380c |
| SHA1 | f062d2cbeaf4395d2335665ad57477c4949b3260 |
| SHA256 | a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e |
| SHA512 | 62a3f682fcf14eee14537552977f5906f50dd3e29598feaf8c90b285abc7484e432a843e5cf5621d72322e7de35a812b2421e50de2ff1f93dbb66a3daa0b7420 |
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
| MD5 | 9fd83afa4f050599f081eaa6b36b380c |
| SHA1 | f062d2cbeaf4395d2335665ad57477c4949b3260 |
| SHA256 | a6fdf220e34bf901c136a5528548f28da6c71f2cf62e97a07a9ccf8408a06f8e |
| SHA512 | 62a3f682fcf14eee14537552977f5906f50dd3e29598feaf8c90b285abc7484e432a843e5cf5621d72322e7de35a812b2421e50de2ff1f93dbb66a3daa0b7420 |
memory/1124-135-0x0000000073F00000-0x00000000744B1000-memory.dmp
memory/1124-136-0x0000000004097000-0x0000000004099000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\svchost.exe
| MD5 | 89dd6e72358a669b7d6e2348307a7af7 |
| SHA1 | 0db348f3c6114a45d71f4d218e0e088b71c7bb0a |
| SHA256 | ad34794058212006ae974fcc6a0242598e6d020f08044439e3512773cd402b7e |
| SHA512 | 93b8a47686d7491281a0809b138a6244a535302ba0d6b2146849e9888632c72b6223ae8eb7a24f1006aaf57ab947a8f43719cff4837df559e7bf42f52c63856b |