Analysis Overview
SHA256
98d5e4539d010d7fcfb6aa3d8d9b117f4f03ffb743f6fe345ef2c8ff7134e8d8
Threat Level: Known bad
The file 98d5e4539d010d7fcfb6aa3d8d9b117f4f03ffb743f6fe345ef2c8ff7134e8d8 was found to be: Known bad.
Malicious Activity Summary
NanoCore
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Checks whether UAC is enabled
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-05 00:39
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-05 00:39
Reported
2024-08-05 00:42
Platform
win7-20240704-en
Max time kernel
150s
Max time network
123s
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\98d5e4539d010d7fcfb6aa3d8d9b117f4f03ffb743f6fe345ef2c8ff7134e8d8.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\98d5e4539d010d7fcfb6aa3d8d9b117f4f03ffb743f6fe345ef2c8ff7134e8d8.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 2468 set thread context of 2612 | 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\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 |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\98d5e4539d010d7fcfb6aa3d8d9b117f4f03ffb743f6fe345ef2c8ff7134e8d8.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\98d5e4539d010d7fcfb6aa3d8d9b117f4f03ffb743f6fe345ef2c8ff7134e8d8.exe
"C:\Users\Admin\AppData\Local\Temp\98d5e4539d010d7fcfb6aa3d8d9b117f4f03ffb743f6fe345ef2c8ff7134e8d8.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/2120-0-0x0000000074161000-0x0000000074162000-memory.dmp
memory/2120-1-0x0000000074160000-0x000000007470B000-memory.dmp
memory/2120-2-0x0000000074160000-0x000000007470B000-memory.dmp
memory/2120-3-0x0000000074160000-0x000000007470B000-memory.dmp
\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
| MD5 | 49c1c8b69ccd93aabe88df99714f5701 |
| SHA1 | 47bb331b05f29229f425a7cba8b2cdd4b56a0128 |
| SHA256 | ec5fdeb914f81e0b6a16b304a18c269a39bf88e6509479f2e8306c35729b09a5 |
| SHA512 | 961f2968d024cd465e438ddd989d6debb7c91c241aa02b4f147e3de55f07c5f08717b155e30109fde251aec7dd4b7673996397c8f9819c26d6a5dc44bf6fe927 |
memory/2120-12-0x0000000074160000-0x000000007470B000-memory.dmp
memory/2468-15-0x0000000074160000-0x000000007470B000-memory.dmp
memory/2468-13-0x0000000074160000-0x000000007470B000-memory.dmp
memory/2468-14-0x0000000074160000-0x000000007470B000-memory.dmp
memory/2468-16-0x0000000074160000-0x000000007470B000-memory.dmp
memory/2612-18-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2612-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2612-31-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2612-30-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2612-24-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2612-22-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2612-20-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2612-19-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2468-33-0x0000000074160000-0x000000007470B000-memory.dmp
memory/2468-34-0x0000000074160000-0x000000007470B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-05 00:39
Reported
2024-08-05 00:42
Platform
win10v2004-20240802-en
Max time kernel
96s
Max time network
152s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\98d5e4539d010d7fcfb6aa3d8d9b117f4f03ffb743f6fe345ef2c8ff7134e8d8.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-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" | C:\Users\Admin\AppData\Local\Temp\98d5e4539d010d7fcfb6aa3d8d9b117f4f03ffb743f6fe345ef2c8ff7134e8d8.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\98d5e4539d010d7fcfb6aa3d8d9b117f4f03ffb743f6fe345ef2c8ff7134e8d8.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\98d5e4539d010d7fcfb6aa3d8d9b117f4f03ffb743f6fe345ef2c8ff7134e8d8.exe
"C:\Users\Admin\AppData\Local\Temp\98d5e4539d010d7fcfb6aa3d8d9b117f4f03ffb743f6fe345ef2c8ff7134e8d8.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 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.140.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
Files
memory/2916-0-0x0000000075242000-0x0000000075243000-memory.dmp
memory/2916-1-0x0000000075240000-0x00000000757F1000-memory.dmp
memory/2916-2-0x0000000075240000-0x00000000757F1000-memory.dmp
memory/2916-3-0x0000000075240000-0x00000000757F1000-memory.dmp
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
| MD5 | a8c5bd69b68e347fb06ae90976e83173 |
| SHA1 | 172faa2975b97c602a5095780aed70c5ba495054 |
| SHA256 | f4c3ce570a29ffcefb6ebea585c939822ee17e5db4273b02952a9e1d759fb219 |
| SHA512 | 52b1f4fbcd687578e5093d88f35828f350f85551a570d21a77a906b78b8cd1176630772b1ce76fa8e84361c8f8678c932d30c239520882d49d2e249c6837b157 |
memory/3956-17-0x0000000075240000-0x00000000757F1000-memory.dmp
memory/3956-19-0x0000000075240000-0x00000000757F1000-memory.dmp
memory/2916-18-0x0000000075240000-0x00000000757F1000-memory.dmp
memory/3956-20-0x0000000075240000-0x00000000757F1000-memory.dmp
memory/3956-22-0x0000000075240000-0x00000000757F1000-memory.dmp