Analysis Overview
SHA256
d697ba97c44ec3c8ecbee3399326507fb5e4ee1df6307c33bad34bb1709a0530
Threat Level: Known bad
The file fe271795d46dc79937c4b43ff8642a00N.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
System Location Discovery: System Language Discovery
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-16 11:53
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-16 11:53
Reported
2024-08-16 11:55
Platform
win7-20240705-en
Max time kernel
118s
Max time network
118s
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\fe271795d46dc79937c4b43ff8642a00N.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-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" | C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.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 2892 set thread context of 2644 | 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\fe271795d46dc79937c4b43ff8642a00N.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\fe271795d46dc79937c4b43ff8642a00N.exe
"C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.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/1460-0-0x0000000074F21000-0x0000000074F22000-memory.dmp
memory/1460-1-0x0000000074F20000-0x00000000754CB000-memory.dmp
memory/1460-2-0x0000000074F20000-0x00000000754CB000-memory.dmp
memory/1460-3-0x0000000074F20000-0x00000000754CB000-memory.dmp
memory/1460-4-0x0000000074F20000-0x00000000754CB000-memory.dmp
memory/1460-5-0x0000000074F20000-0x00000000754CB000-memory.dmp
\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
| MD5 | f5a38f2b34660e4a5307c7b4202e43a7 |
| SHA1 | 0294e38322d69f5debade1e302bff6b4f5c4d4b8 |
| SHA256 | ac58639d39082c67faa625089f28769cb352e31dc664bea0c0450d2175df5a14 |
| SHA512 | 680300b00b1523d412be42751782f8bac597b247066de4531809afe1526c28d0c201b7be8832ba5559878a16a22ba3195cde57efb2aa1f5c274da90d01c481c7 |
memory/2892-15-0x0000000074F20000-0x00000000754CB000-memory.dmp
memory/1460-14-0x0000000074F20000-0x00000000754CB000-memory.dmp
memory/2892-16-0x0000000074F20000-0x00000000754CB000-memory.dmp
memory/2892-17-0x0000000074F20000-0x00000000754CB000-memory.dmp
memory/2892-18-0x0000000074F20000-0x00000000754CB000-memory.dmp
memory/2892-19-0x0000000074F20000-0x00000000754CB000-memory.dmp
memory/2892-20-0x0000000074F20000-0x00000000754CB000-memory.dmp
memory/2892-21-0x0000000074F20000-0x00000000754CB000-memory.dmp
memory/2644-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2644-39-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2644-38-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2644-32-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2644-29-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2644-26-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2644-25-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2644-23-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2892-41-0x0000000074F20000-0x00000000754CB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-16 11:53
Reported
2024-08-16 11:55
Platform
win10v2004-20240802-en
Max time kernel
119s
Max time network
107s
Command Line
Signatures
NanoCore
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" | C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.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 732 set thread context of 916 | 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\fe271795d46dc79937c4b43ff8642a00N.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\fe271795d46dc79937c4b43ff8642a00N.exe
"C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.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 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 85.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | sysupdate24.ddns.net | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.140.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
Files
memory/2072-0-0x0000000075362000-0x0000000075363000-memory.dmp
memory/2072-1-0x0000000075360000-0x0000000075911000-memory.dmp
memory/2072-2-0x0000000075360000-0x0000000075911000-memory.dmp
memory/2072-3-0x0000000075360000-0x0000000075911000-memory.dmp
memory/2072-4-0x0000000075362000-0x0000000075363000-memory.dmp
memory/2072-5-0x0000000075360000-0x0000000075911000-memory.dmp
memory/2072-6-0x0000000075360000-0x0000000075911000-memory.dmp
memory/2072-7-0x0000000075360000-0x0000000075911000-memory.dmp
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
| MD5 | b49894ea219cb5e69fdc83ce4663b973 |
| SHA1 | 66a62c88c2d5add123f53a0da7afd6e6e0327361 |
| SHA256 | 5b4f62ce27751948ecfde9bb07db36e83bef4c015287db5ae0465577178fa529 |
| SHA512 | 248ce1c5f311f69c07b8186bf486435e6662bba4b2227f3ca4c9ea3569ff2a20a9b997f5dcce3c451d03bafbedd5dab3ddd490b011700c5f28e75a3fcae8faf2 |
memory/732-21-0x0000000075360000-0x0000000075911000-memory.dmp
memory/732-23-0x0000000075360000-0x0000000075911000-memory.dmp
memory/732-24-0x0000000075360000-0x0000000075911000-memory.dmp
memory/2072-22-0x0000000075360000-0x0000000075911000-memory.dmp
memory/732-25-0x0000000075360000-0x0000000075911000-memory.dmp
memory/732-26-0x0000000075360000-0x0000000075911000-memory.dmp
memory/732-27-0x0000000075360000-0x0000000075911000-memory.dmp
memory/916-31-0x0000000000400000-0x0000000000438000-memory.dmp
memory/916-29-0x0000000000400000-0x0000000000438000-memory.dmp
memory/916-28-0x0000000000400000-0x0000000000438000-memory.dmp
memory/916-33-0x0000000075360000-0x0000000075911000-memory.dmp
memory/916-34-0x0000000075360000-0x0000000075911000-memory.dmp
memory/916-35-0x0000000075360000-0x0000000075911000-memory.dmp
memory/916-37-0x0000000075360000-0x0000000075911000-memory.dmp
memory/916-38-0x0000000075360000-0x0000000075911000-memory.dmp
memory/732-40-0x0000000075360000-0x0000000075911000-memory.dmp
memory/916-41-0x0000000075360000-0x0000000075911000-memory.dmp