Analysis Overview
SHA256
0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55
Threat Level: Known bad
The file 0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55 was found to be: Known bad.
Malicious Activity Summary
DarkVNC
Neshta family
DarkVNC Payload
Darkvnc family
Detect Neshta Payload
Modifies system executable filetype association
Neshta
DarkVNC Payload
Executes dropped EXE
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
Drops file in Windows directory
Drops file in Program Files directory
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Modifies registry class
MITRE ATT&CK Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-12-23 09:02
Signatures
DarkVNC Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Darkvnc family
Detect Neshta Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Neshta family
Analysis: behavioral1
Detonation Overview
Submitted
2021-12-23 09:02
Reported
2021-12-23 09:05
Platform
win10-en-20211208
Max time kernel
122s
Max time network
145s
Command Line
Signatures
DarkVNC
Modifies system executable filetype association
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe | N/A |
Neshta
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe | N/A |
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 512 set thread context of 2940 | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe | C:\Windows\system32\WerFault.exe |
Drops file in Program Files directory
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\svchost.com | C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe
"C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe
Network
| Country | Destination | Domain | Proto |
| US | 52.109.8.19:443 | tcp | |
| US | 8.8.8.8:53 | time.windows.com | udp |
| NL | 20.101.57.9:123 | time.windows.com | udp |
| US | 23.83.133.126:80 | tcp | |
| US | 23.83.133.126:80 | tcp |
Files
memory/512-115-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe
| MD5 | 0ee2c60b8e99b5da3c495f1dd2861cd5 |
| SHA1 | 0d040ef434e0db2679ce78ec8996895399cc2cf9 |
| SHA256 | 1ca91e55867ad256da14a7b0c5679e94395da033e87aab24c9a9187963829a87 |
| SHA512 | 996ae9cc73b2aee3049975c757210724b838e959fd79c811b80ea1b0c23a6949e40805f62a77a66400ae5e1b3d5d97dc0af28b8ff474794068efa43a6f4e9005 |
C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe
| MD5 | 0ee2c60b8e99b5da3c495f1dd2861cd5 |
| SHA1 | 0d040ef434e0db2679ce78ec8996895399cc2cf9 |
| SHA256 | 1ca91e55867ad256da14a7b0c5679e94395da033e87aab24c9a9187963829a87 |
| SHA512 | 996ae9cc73b2aee3049975c757210724b838e959fd79c811b80ea1b0c23a6949e40805f62a77a66400ae5e1b3d5d97dc0af28b8ff474794068efa43a6f4e9005 |
memory/2940-118-0x0000000000000000-mapping.dmp
memory/2940-119-0x00000266A57C0000-0x00000266A57E9000-memory.dmp
memory/2940-120-0x00000266A5950000-0x00000266A5A1A000-memory.dmp