Analysis Overview
SHA256
c9e7703faad3960594c4a4135f5ca3a6dca4dd0113af162e56b50c30fc55fa45
Threat Level: Known bad
The file c7d3425a23b5b8d3d00eded5b83c0710N.exe was found to be: Known bad.
Malicious Activity Summary
NanoCore
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Adds Run key to start application
Checks whether UAC is enabled
Suspicious use of SetThreadContext
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-06 15:38
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-06 15:38
Reported
2024-08-06 15:40
Platform
win7-20240704-en
Max time kernel
117s
Max time network
121s
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\c7d3425a23b5b8d3d00eded5b83c0710N.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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" | C:\Users\Admin\AppData\Local\Temp\c7d3425a23b5b8d3d00eded5b83c0710N.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 2664 set thread context of 3004 | 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\c7d3425a23b5b8d3d00eded5b83c0710N.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\c7d3425a23b5b8d3d00eded5b83c0710N.exe
"C:\Users\Admin\AppData\Local\Temp\c7d3425a23b5b8d3d00eded5b83c0710N.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/2080-0-0x0000000074491000-0x0000000074492000-memory.dmp
memory/2080-1-0x0000000074490000-0x0000000074A3B000-memory.dmp
memory/2080-2-0x0000000074490000-0x0000000074A3B000-memory.dmp
memory/2080-3-0x0000000074490000-0x0000000074A3B000-memory.dmp
\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
| MD5 | a1aeefe191425c6e3451128223426746 |
| SHA1 | 469900583db4053d7f1a880e417800b5254fc549 |
| SHA256 | 79034208c8ab9c9c2f46a36dbc8a1495281f439adf395c60d6a8d1117117553b |
| SHA512 | 4805a6e792ede974340208ea2f40a12bf007ed0243bf30e52575eb91c28559a375bb853f7446aa50b3f0e17ec2844ba4d5af617cf172736c18c7e4773e903576 |
memory/2080-12-0x0000000074490000-0x0000000074A3B000-memory.dmp
memory/2664-13-0x0000000074490000-0x0000000074A3B000-memory.dmp
memory/2664-14-0x0000000074490000-0x0000000074A3B000-memory.dmp
memory/2664-16-0x0000000074490000-0x0000000074A3B000-memory.dmp
memory/2664-15-0x0000000074490000-0x0000000074A3B000-memory.dmp
memory/3004-19-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3004-18-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3004-31-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3004-30-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3004-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/3004-24-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3004-22-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3004-20-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2664-33-0x0000000074490000-0x0000000074A3B000-memory.dmp
memory/2664-34-0x0000000074490000-0x0000000074A3B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-06 15:38
Reported
2024-08-06 15:40
Platform
win10v2004-20240802-en
Max time kernel
96s
Max time network
97s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\c7d3425a23b5b8d3d00eded5b83c0710N.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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" | C:\Users\Admin\AppData\Local\Temp\c7d3425a23b5b8d3d00eded5b83c0710N.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\c7d3425a23b5b8d3d00eded5b83c0710N.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\c7d3425a23b5b8d3d00eded5b83c0710N.exe
"C:\Users\Admin\AppData\Local\Temp\c7d3425a23b5b8d3d00eded5b83c0710N.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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
Files
memory/2504-0-0x0000000075142000-0x0000000075143000-memory.dmp
memory/2504-1-0x0000000075140000-0x00000000756F1000-memory.dmp
memory/2504-2-0x0000000075140000-0x00000000756F1000-memory.dmp
memory/2504-3-0x0000000075140000-0x00000000756F1000-memory.dmp
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
| MD5 | 791a10fd1c80039cb9e3f4d2667e75f3 |
| SHA1 | 850af1ddc02a37a7660cd3c2a05e40875943fd7b |
| SHA256 | 7821cffe27ba8b113562c7c2e3baebbc1a7c8c63cef8ac8aa1d0220dd9456ce2 |
| SHA512 | b5a3e8c1286135e78c4f7c45a7f37dbaf271c50dadbcef75f166d9ea80069c6ecad4201eda9c0d2d9a7461e677e6eaa82465c16cb12c59f34edff7e5a5010be3 |
memory/2504-17-0x0000000075140000-0x00000000756F1000-memory.dmp
memory/4860-19-0x0000000075140000-0x00000000756F1000-memory.dmp
memory/4860-18-0x0000000075140000-0x00000000756F1000-memory.dmp
memory/4860-20-0x0000000075140000-0x00000000756F1000-memory.dmp
memory/4860-22-0x0000000075140000-0x00000000756F1000-memory.dmp