Analysis Overview
SHA256
262531be1dc4d521469be8ff7591f9d40861bcf7de7ff4f8a0ee1ba542713c0d
Threat Level: Known bad
The file rDHLinvoice.exe was found to be: Known bad.
Malicious Activity Summary
DarkCloud
Suspicious use of SetThreadContext
Drops file in System32 directory
Unsigned PE
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-07-24 11:01
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-07-24 11:01
Reported
2023-07-24 11:03
Platform
win7-20230712-en
Max time kernel
148s
Max time network
126s
Command Line
Signatures
DarkCloud
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2500 set thread context of 2300 | N/A | C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe | C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe
"C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe"
C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe
"C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe"
Network
Files
memory/2500-54-0x0000000000900000-0x0000000000A06000-memory.dmp
memory/2500-55-0x0000000074870000-0x0000000074F5E000-memory.dmp
memory/2500-56-0x00000000008C0000-0x0000000000900000-memory.dmp
memory/2500-57-0x0000000000500000-0x0000000000514000-memory.dmp
memory/2500-58-0x0000000074870000-0x0000000074F5E000-memory.dmp
memory/2500-59-0x00000000008C0000-0x0000000000900000-memory.dmp
memory/2500-60-0x00000000008B0000-0x00000000008BA000-memory.dmp
memory/2500-61-0x0000000005CA0000-0x0000000005D50000-memory.dmp
memory/2300-62-0x0000000000400000-0x000000000046D000-memory.dmp
memory/2300-64-0x0000000000400000-0x000000000046D000-memory.dmp
memory/2300-66-0x0000000000400000-0x000000000046D000-memory.dmp
memory/2300-69-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2300-71-0x0000000000400000-0x000000000046D000-memory.dmp
memory/2500-74-0x0000000074870000-0x0000000074F5E000-memory.dmp
memory/2300-73-0x0000000000400000-0x000000000046D000-memory.dmp
memory/2300-77-0x0000000000400000-0x000000000046D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-07-24 11:01
Reported
2023-07-24 11:03
Platform
win10v2004-20230703-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
DarkCloud
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{5DFBDE98-9FAF-447D-AC97-4DAE979B5BDE}.catalogItem | C:\Windows\System32\svchost.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4360 set thread context of 1772 | N/A | C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe | C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe
"C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe"
C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe
"C:\Users\Admin\AppData\Local\Temp\rDHLinvoice.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.214.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.202.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.16.208.104.in-addr.arpa | udp |
Files
memory/4360-134-0x0000000074880000-0x0000000075030000-memory.dmp
memory/4360-133-0x00000000000B0000-0x00000000001B6000-memory.dmp
memory/4360-135-0x00000000050C0000-0x0000000005664000-memory.dmp
memory/4360-136-0x0000000004A10000-0x0000000004AA2000-memory.dmp
memory/4360-137-0x0000000004C20000-0x0000000004C30000-memory.dmp
memory/4360-138-0x0000000004AD0000-0x0000000004ADA000-memory.dmp
memory/4360-139-0x0000000004CE0000-0x0000000004D7C000-memory.dmp
memory/4360-140-0x0000000074880000-0x0000000075030000-memory.dmp
memory/4360-141-0x0000000004C20000-0x0000000004C30000-memory.dmp
memory/1772-143-0x0000000000400000-0x000000000046D000-memory.dmp
memory/1772-146-0x0000000000400000-0x000000000046D000-memory.dmp
memory/4360-148-0x0000000074880000-0x0000000075030000-memory.dmp
memory/1772-150-0x0000000000400000-0x000000000046D000-memory.dmp