Analysis Overview
SHA256
b744c6f160c7a79fe1102600e9f08865facff2f46657f68bfe6e61a8b2956e11
Threat Level: Shows suspicious behavior
The file b39c81284bef8e074945caf83836dc54 was found to be: Shows suspicious behavior.
Malicious Activity Summary
ASPack v2.12-2.42
Adds Run key to start application
Drops file in System32 directory
Unsigned PE
Suspicious behavior: GetForegroundWindowSpam
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-05 03:03
Signatures
ASPack v2.12-2.42
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-05 03:03
Reported
2024-03-05 03:06
Platform
win7-20240215-en
Max time kernel
140s
Max time network
122s
Command Line
Signatures
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\b39c81284bef8e074945caf83836dc54 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b39c81284bef8e074945caf83836dc54.exe" | C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\b39c81284bef8e074945caf83836dc54 = "C:\\Windows\\system32\\svchost.scr" | C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\svchost.scr | C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\svchost.scr | C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe
"C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | smtp.terra.com.br | udp |
| US | 208.84.244.140:25 | smtp.terra.com.br | tcp |
Files
memory/2984-0-0x0000000000230000-0x0000000000231000-memory.dmp
memory/2984-1-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2984-4-0x0000000000230000-0x0000000000231000-memory.dmp
memory/2984-5-0x0000000000400000-0x00000000005F5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-05 03:03
Reported
2024-03-05 03:06
Platform
win10v2004-20240226-en
Max time kernel
158s
Max time network
165s
Command Line
Signatures
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\b39c81284bef8e074945caf83836dc54 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b39c81284bef8e074945caf83836dc54.exe" | C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\b39c81284bef8e074945caf83836dc54 = "C:\\Windows\\system32\\svchost.scr" | C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\svchost.scr | C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\svchost.scr | C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe
"C:\Users\Admin\AppData\Local\Temp\b39c81284bef8e074945caf83836dc54.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | smtp.terra.com.br | udp |
| US | 208.84.244.140:25 | smtp.terra.com.br | tcp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 211.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.173.189.20.in-addr.arpa | udp |
Files
memory/1444-0-0x00000000024C0000-0x00000000024C1000-memory.dmp
memory/1444-1-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1444-4-0x00000000024C0000-0x00000000024C1000-memory.dmp
memory/1444-5-0x0000000000400000-0x00000000005F5000-memory.dmp