Analysis Overview
SHA256
9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666
Threat Level: Known bad
The file 9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666 was found to be: Known bad.
Malicious Activity Summary
Cobaltstrike
Blocklisted process makes network request
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-10-09 19:12
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-09 19:12
Reported
2024-10-09 19:14
Platform
win10v2004-20241007-en
Max time kernel
131s
Max time network
148s
Command Line
Signatures
Cobaltstrike
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3864 set thread context of 2284 | N/A | C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe | C:\Windows\System32\rundll32.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3864 wrote to memory of 2284 | N/A | C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe | C:\Windows\System32\rundll32.exe |
| PID 3864 wrote to memory of 2284 | N/A | C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe | C:\Windows\System32\rundll32.exe |
| PID 3864 wrote to memory of 2284 | N/A | C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe | C:\Windows\System32\rundll32.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe
"C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe"
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe
Network
| Country | Destination | Domain | Proto |
| CN | 8.137.147.254:7001 | tcp | |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 102.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| CN | 8.137.147.254:7001 | tcp | |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.209.201.84.in-addr.arpa | udp |
| CN | 8.137.147.254:7001 | tcp | |
| CN | 8.137.147.254:7001 | tcp | |
| US | 8.8.8.8:53 | 71.209.201.84.in-addr.arpa | udp |
| CN | 8.137.147.254:7001 | tcp | |
| US | 8.8.8.8:53 | 242.108.222.173.in-addr.arpa | udp |
| CN | 8.137.147.254:7001 | tcp | |
| CN | 8.137.147.254:7001 | tcp |
Files
memory/2284-0-0x00000147DD430000-0x00000147DD471000-memory.dmp
memory/2284-2-0x00000147DD8B0000-0x00000147DDD22000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-09 19:12
Reported
2024-10-09 19:14
Platform
win7-20240903-en
Max time kernel
149s
Max time network
138s
Command Line
Signatures
Cobaltstrike
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3012 set thread context of 2380 | N/A | C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe | C:\Windows\System32\rundll32.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3012 wrote to memory of 2380 | N/A | C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe | C:\Windows\System32\rundll32.exe |
| PID 3012 wrote to memory of 2380 | N/A | C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe | C:\Windows\System32\rundll32.exe |
| PID 3012 wrote to memory of 2380 | N/A | C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe | C:\Windows\System32\rundll32.exe |
| PID 3012 wrote to memory of 2380 | N/A | C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe | C:\Windows\System32\rundll32.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe
"C:\Users\Admin\AppData\Local\Temp\9f4bbc1e05fe42f6586b2cb5327917ee79ba57cd017a569863c3eee4bd41c666.exe"
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe
Network
| Country | Destination | Domain | Proto |
| CN | 8.137.147.254:7001 | tcp | |
| CN | 8.137.147.254:7001 | tcp | |
| CN | 8.137.147.254:7001 | tcp | |
| CN | 8.137.147.254:7001 | tcp | |
| CN | 8.137.147.254:7001 | tcp | |
| CN | 8.137.147.254:7001 | tcp | |
| CN | 8.137.147.254:7001 | tcp | |
| CN | 8.137.147.254:7001 | tcp |
Files
memory/2380-0-0x0000000000110000-0x0000000000151000-memory.dmp
memory/2380-2-0x00000000020D0000-0x0000000002542000-memory.dmp