Analysis Overview
SHA256
cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88
Threat Level: Known bad
The file cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88 was found to be: Known bad.
Malicious Activity Summary
DarkVNC
DarkVNC Payload
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious behavior: MapViewOfSection
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
MITRE ATT&CK Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-03-20 02:10
Signatures
Analysis: behavioral2
Detonation Overview
Submitted
2022-03-20 02:10
Reported
2022-03-20 16:06
Platform
win10v2004-en-20220113
Max time kernel
135s
Max time network
159s
Command Line
Signatures
DarkVNC
DarkVNC Payload
| 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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2644 set thread context of 5088 | N/A | C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe | C:\Windows\system32\WerFault.exe |
Enumerates physical storage devices
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2644 wrote to memory of 5088 | N/A | C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe | C:\Windows\system32\WerFault.exe |
| PID 2644 wrote to memory of 5088 | N/A | C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe | C:\Windows\system32\WerFault.exe |
| PID 2644 wrote to memory of 5088 | N/A | C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe | C:\Windows\system32\WerFault.exe |
| PID 2644 wrote to memory of 5088 | N/A | C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe | C:\Windows\system32\WerFault.exe |
| PID 2644 wrote to memory of 5088 | N/A | C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe | C:\Windows\system32\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe
"C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 20.189.173.6:443 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp |
Files
memory/2644-130-0x00000000025D0000-0x0000000002659000-memory.dmp
memory/2644-134-0x0000000000A50000-0x0000000000A51000-memory.dmp
memory/2644-133-0x0000000000400000-0x000000000047B000-memory.dmp
memory/2644-135-0x0000000000400000-0x000000000047B000-memory.dmp
memory/2644-136-0x0000000002A00000-0x0000000002B40000-memory.dmp
memory/5088-137-0x000001ACFD470000-0x000001ACFD471000-memory.dmp
memory/5088-138-0x000001ACFD390000-0x000001ACFD459000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2022-03-20 02:10
Reported
2022-03-20 16:06
Platform
win7-20220311-en
Max time kernel
4294212s
Max time network
164s
Command Line
Signatures
DarkVNC
DarkVNC Payload
| 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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1684 set thread context of 464 | N/A | C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe | C:\Windows\system32\WerFault.exe |
Enumerates physical storage devices
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe
"C:\Users\Admin\AppData\Local\Temp\cf04fc9db51e68544ae38d93ef517e8fff5c8a4e14d0c1628e7b9bcbf8286e88.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe
Network
| Country | Destination | Domain | Proto |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp | |
| US | 64.44.141.42:80 | tcp |
Files
memory/1684-54-0x0000000075841000-0x0000000075843000-memory.dmp
memory/1684-55-0x0000000000400000-0x000000000047B000-memory.dmp
memory/1684-56-0x0000000001BD0000-0x0000000001BD1000-memory.dmp
memory/1684-57-0x0000000010000000-0x0000000010089000-memory.dmp
memory/1684-60-0x0000000000400000-0x000000000047B000-memory.dmp
memory/1684-61-0x0000000002790000-0x00000000028D0000-memory.dmp
memory/464-62-0x0000000000080000-0x0000000000081000-memory.dmp
memory/464-63-0x0000000000290000-0x0000000000359000-memory.dmp