Analysis Overview
SHA256
0c4c5d4afa47499f0b32310b8c6b042f55e8d3358096eb24706ebb199b2b7d2d
Threat Level: Known bad
The file c28d8f0154ef63cbc5f84f8e9940a840N.exe was found to be: Known bad.
Malicious Activity Summary
NanoCore
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Adds Run key to start application
Checks whether UAC is enabled
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-06 15:10
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-06 15:10
Reported
2024-08-06 15:12
Platform
win10v2004-20240802-en
Max time kernel
119s
Max time network
95s
Command Line
Signatures
NanoCore
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\c28d8f0154ef63cbc5f84f8e9940a840N.exe | N/A |
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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" | C:\Users\Admin\AppData\Local\Temp\c28d8f0154ef63cbc5f84f8e9940a840N.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 2336 set thread context of 3848 | 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\c28d8f0154ef63cbc5f84f8e9940a840N.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\c28d8f0154ef63cbc5f84f8e9940a840N.exe
"C:\Users\Admin\AppData\Local\Temp\c28d8f0154ef63cbc5f84f8e9940a840N.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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | sysupdate24.ddns.net | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
Files
memory/4956-0-0x0000000074852000-0x0000000074853000-memory.dmp
memory/4956-1-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/4956-2-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/4956-3-0x0000000074850000-0x0000000074E01000-memory.dmp
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
| MD5 | 8bb2acedf6f8226c32cb5c41400d776e |
| SHA1 | 260b7a30ed09eac1f1b58bc6e83108aff9877b3c |
| SHA256 | dd94a4579455adafa554498010fcff16e5f14539498ef7e61df58c5328ff38e8 |
| SHA512 | 4b3005c8f929a5f61b85d309274f9fd6ff365b6117e4ed75dcd52e80a68df986cb492db3c6ca385512ab1f8c1c793044e1c685e844ec6d10e95aaeedeb4b9500 |
memory/4956-18-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/2336-17-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/2336-19-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3848-20-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3848-22-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3848-21-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3848-26-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3848-25-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3848-27-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3848-29-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/2336-30-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/2336-32-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3848-33-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3848-34-0x0000000074850000-0x0000000074E01000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-06 15:10
Reported
2024-08-06 15:12
Platform
win7-20240708-en
Max time kernel
117s
Max time network
119s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| 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\c28d8f0154ef63cbc5f84f8e9940a840N.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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" | C:\Users\Admin\AppData\Local\Temp\c28d8f0154ef63cbc5f84f8e9940a840N.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\c28d8f0154ef63cbc5f84f8e9940a840N.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\c28d8f0154ef63cbc5f84f8e9940a840N.exe
"C:\Users\Admin\AppData\Local\Temp\c28d8f0154ef63cbc5f84f8e9940a840N.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
Files
memory/2644-0-0x0000000074711000-0x0000000074712000-memory.dmp
memory/2644-1-0x0000000074710000-0x0000000074CBB000-memory.dmp
memory/2644-2-0x0000000074710000-0x0000000074CBB000-memory.dmp
memory/2644-3-0x0000000074710000-0x0000000074CBB000-memory.dmp
\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
| MD5 | 2f4de5f7987ec31d9111de1bdb71b5af |
| SHA1 | 46a07abd0b5824dd37e5b0f594ea3f2e421541d9 |
| SHA256 | 1b2c385c809accbdfe51445bf60e35eb7f7773094c539096de4b9e6d8c433d12 |
| SHA512 | 4907dc0b2c8330fa72cd021ddb404a15d40cc8a996e4c8217396ba4ad7e0b6b3eba4b3d690e03de493f8d2bfbf8c7ca021d79ee1b5db8ce07897c9b20d3b6299 |
memory/1528-13-0x0000000074710000-0x0000000074CBB000-memory.dmp
memory/2644-12-0x0000000074710000-0x0000000074CBB000-memory.dmp
memory/1528-14-0x0000000074710000-0x0000000074CBB000-memory.dmp
memory/1528-16-0x0000000074710000-0x0000000074CBB000-memory.dmp