Analysis Overview
SHA256
a51c6f9b3e3e74a89aff54e5f6b68995db00f4c88701a2bbd29331a23c05afc8
Threat Level: Known bad
The file 87225db143a3c5bef68d42ae4fbbdf40N.exe 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 use of AdjustPrivilegeToken
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-06 08:57
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-06 08:57
Reported
2024-08-06 08:59
Platform
win7-20240708-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\87225db143a3c5bef68d42ae4fbbdf40N.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" | C:\Users\Admin\AppData\Local\Temp\87225db143a3c5bef68d42ae4fbbdf40N.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 2712 set thread context of 1160 | 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\87225db143a3c5bef68d42ae4fbbdf40N.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\87225db143a3c5bef68d42ae4fbbdf40N.exe
"C:\Users\Admin\AppData\Local\Temp\87225db143a3c5bef68d42ae4fbbdf40N.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/2332-0-0x0000000074301000-0x0000000074302000-memory.dmp
memory/2332-1-0x0000000074300000-0x00000000748AB000-memory.dmp
memory/2332-2-0x0000000074300000-0x00000000748AB000-memory.dmp
memory/2332-3-0x0000000074300000-0x00000000748AB000-memory.dmp
\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
| MD5 | 7e6de438a7e354c512f67b2b4cb62f9c |
| SHA1 | e9d6246e4d59ea2dc73d351dba0672d929d98852 |
| SHA256 | 06bc4c9a080d410bde9c0ba88564923276bcdfe544de50c52b75e20d0caae56a |
| SHA512 | 7b8de56d72cbd4e53f9ef164664bae57fb69d99a6b40a07d6cd2b5d189cb58bb33894697c462037d98df96da48c7b64d15ead7b9012b875c4cb20946a76e18c3 |
memory/2712-13-0x0000000074300000-0x00000000748AB000-memory.dmp
memory/2712-14-0x0000000074300000-0x00000000748AB000-memory.dmp
memory/2332-12-0x0000000074300000-0x00000000748AB000-memory.dmp
memory/2712-15-0x0000000074300000-0x00000000748AB000-memory.dmp
memory/1160-19-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1160-17-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1160-24-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1160-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1160-34-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1160-32-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1160-26-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1160-21-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2712-36-0x0000000074300000-0x00000000748AB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-06 08:57
Reported
2024-08-06 08:59
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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\87225db143a3c5bef68d42ae4fbbdf40N.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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" | C:\Users\Admin\AppData\Local\Temp\87225db143a3c5bef68d42ae4fbbdf40N.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 628 set thread context of 1656 | 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\87225db143a3c5bef68d42ae4fbbdf40N.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\87225db143a3c5bef68d42ae4fbbdf40N.exe
"C:\Users\Admin\AppData\Local\Temp\87225db143a3c5bef68d42ae4fbbdf40N.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 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.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 | 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 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
Files
memory/2472-0-0x00000000748F2000-0x00000000748F3000-memory.dmp
memory/2472-1-0x00000000748F0000-0x0000000074EA1000-memory.dmp
memory/2472-2-0x00000000748F0000-0x0000000074EA1000-memory.dmp
memory/2472-3-0x00000000748F0000-0x0000000074EA1000-memory.dmp
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
| MD5 | 058616289fa26417da1c3a92591b47f8 |
| SHA1 | 5cde9a59cce131931fabece0a0fb8d4e7f1bd99c |
| SHA256 | 55ba0b09cdeaf7d08c141c18a15f823a7680b63cf82452857d4074e3c8308aab |
| SHA512 | 374003efd116a8df5ad4e99635aceacf4d7aa59375da9dfffed1468a7f842859d2ab7e394c27d44fe3c62d0545b116236b0117e6d8051c9922a44b996be78f6c |
memory/628-18-0x00000000748F0000-0x0000000074EA1000-memory.dmp
memory/2472-17-0x00000000748F0000-0x0000000074EA1000-memory.dmp
memory/628-19-0x00000000748F0000-0x0000000074EA1000-memory.dmp
memory/628-20-0x00000000748F0000-0x0000000074EA1000-memory.dmp
memory/1656-23-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1656-21-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1656-22-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1656-26-0x00000000748F0000-0x0000000074EA1000-memory.dmp
memory/1656-27-0x00000000748F0000-0x0000000074EA1000-memory.dmp
memory/1656-29-0x00000000748F0000-0x0000000074EA1000-memory.dmp
memory/628-30-0x00000000748F0000-0x0000000074EA1000-memory.dmp
memory/628-32-0x00000000748F0000-0x0000000074EA1000-memory.dmp
memory/1656-33-0x00000000748F0000-0x0000000074EA1000-memory.dmp
memory/1656-34-0x00000000748F0000-0x0000000074EA1000-memory.dmp