Analysis Overview
SHA256
90115d512cb84ffadc9a85aaddc077fb817fa37198a863928291e9780cfa763f
Threat Level: Known bad
The file dc2533b0feef85c78e45c3e1fb49d0f0N.exe was found to be: Known bad.
Malicious Activity Summary
NanoCore
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Checks whether UAC is enabled
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-06 19:21
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-06 19:21
Reported
2024-08-06 19:23
Platform
win10v2004-20240802-en
Max time kernel
94s
Max time network
105s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" | C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe
"C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe"
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 52.111.229.43:443 | tcp | |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
memory/1516-0-0x0000000074CB2000-0x0000000074CB3000-memory.dmp
memory/1516-1-0x0000000074CB0000-0x0000000075261000-memory.dmp
memory/1516-2-0x0000000074CB0000-0x0000000075261000-memory.dmp
memory/1516-3-0x0000000074CB0000-0x0000000075261000-memory.dmp
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
| MD5 | 22fdc9b13f72669f452ddc2f61930d9c |
| SHA1 | ae98e7eb2c345996375d1c10424587a15a5dae77 |
| SHA256 | a9dcd608f344d28c2dd4c6496854f35311d4d86f7177d2e7dd74aab3e94ed264 |
| SHA512 | 4433855b1d28255d02b62d13f05af83899a79a818563a77f3ebb69c8d32ca70fd65500b78cb2c6d06bd60cc8f1116c7b36c1031c4839a937b2a04d499fb68186 |
memory/1516-18-0x0000000074CB0000-0x0000000075261000-memory.dmp
memory/3220-17-0x0000000074CB0000-0x0000000075261000-memory.dmp
memory/3220-19-0x0000000074CB0000-0x0000000075261000-memory.dmp
memory/3220-21-0x0000000074CB0000-0x0000000075261000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-06 19:21
Reported
2024-08-06 19:23
Platform
win7-20240704-en
Max time kernel
117s
Max time network
26s
Command Line
Signatures
NanoCore
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" | C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2748 set thread context of 2880 | N/A | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe
"C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe"
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | sysupdate24.ddns.net | udp |
Files
memory/2692-0-0x00000000746B1000-0x00000000746B2000-memory.dmp
memory/2692-1-0x00000000746B0000-0x0000000074C5B000-memory.dmp
memory/2692-2-0x00000000746B0000-0x0000000074C5B000-memory.dmp
memory/2692-3-0x00000000746B0000-0x0000000074C5B000-memory.dmp
\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
| MD5 | 714c9adef6a78cd2162ce047938c5cd2 |
| SHA1 | b53c8579eb6fe7a86234044b94e60d15aa45ada5 |
| SHA256 | bb7c1c7e72feaff1559dcba017cad3381d4c2e05850a8d2e515e1f1ab2e743c6 |
| SHA512 | 09da84a9cf19bf5ce0911f3c61864fc24903a32255272cc79e4ecb47a7af635c1bf3e2513508b05a0b161c1e355ce33dfd26e70f7692a1c9f60dc1128722dc2d |
memory/2748-12-0x00000000746B0000-0x0000000074C5B000-memory.dmp
memory/2692-14-0x00000000746B0000-0x0000000074C5B000-memory.dmp
memory/2748-13-0x00000000746B0000-0x0000000074C5B000-memory.dmp
memory/2748-15-0x00000000746B0000-0x0000000074C5B000-memory.dmp
memory/2880-24-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2880-35-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2880-33-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2880-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2880-27-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2880-21-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2880-19-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2880-17-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2748-37-0x00000000746B0000-0x0000000074C5B000-memory.dmp