Analysis Overview
SHA256
81c5ece1954156740f639f838730f9f27f2dbb17b7752f525a715d4bc0fa03e8
Threat Level: Known bad
The file 795f466f1d7046801dff29d26e922b35 was found to be: Known bad.
Malicious Activity Summary
NanoCore
Checks whether UAC is enabled
Adds Run key to start application
Suspicious use of SetThreadContext
Drops file in Program Files directory
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Checks processor information in registry
Enumerates system info in registry
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-27 05:19
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-27 05:19
Reported
2024-01-27 05:21
Platform
win7-20231215-en
Max time kernel
145s
Max time network
151s
Command Line
Signatures
NanoCore
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Host = "C:\\Program Files (x86)\\WPA Host\\wpahost.exe" | C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.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\Local\Temp\795f466f1d7046801dff29d26e922b35.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2668 set thread context of 2716 | N/A | C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe | C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\WPA Host\wpahost.exe | C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe | N/A |
| File opened for modification | C:\Program Files (x86)\WPA Host\wpahost.exe | C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe
"C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe"
C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe
"C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe"
C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe
"C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe"
C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe
"C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4A1A.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4CAB.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.4.4:53 | shutdown1337.ddns.net | udp |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.4.4:53 | shutdown1337.ddns.net | udp |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.4.4:53 | shutdown1337.ddns.net | udp |
| N/A | 192.168.1.67:10134 | tcp | |
| N/A | 192.168.1.67:10134 | tcp | |
| N/A | 192.168.1.67:10134 | tcp | |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.4.4:53 | shutdown1337.ddns.net | udp |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.4.4:53 | shutdown1337.ddns.net | udp |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.4.4:53 | shutdown1337.ddns.net | udp |
| N/A | 192.168.1.67:10134 | tcp | |
| N/A | 192.168.1.67:10134 | tcp | |
| N/A | 192.168.1.67:10134 | tcp | |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.4.4:53 | shutdown1337.ddns.net | udp |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.4.4:53 | shutdown1337.ddns.net | udp |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.4.4:53 | shutdown1337.ddns.net | udp |
| N/A | 192.168.1.67:10134 | tcp | |
| N/A | 192.168.1.67:10134 | tcp | |
| N/A | 192.168.1.67:10134 | tcp | |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.4.4:53 | shutdown1337.ddns.net | udp |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.4.4:53 | shutdown1337.ddns.net | udp |
| US | 8.8.8.8:53 | shutdown1337.ddns.net | udp |
| US | 8.8.4.4:53 | shutdown1337.ddns.net | udp |
| N/A | 192.168.1.67:10134 | tcp | |
| N/A | 192.168.1.67:10134 | tcp | |
| N/A | 192.168.1.67:10134 | tcp |
Files
memory/2668-0-0x0000000073F50000-0x00000000744FB000-memory.dmp
memory/2668-1-0x0000000073F50000-0x00000000744FB000-memory.dmp
memory/2668-2-0x0000000000520000-0x0000000000560000-memory.dmp
memory/2668-3-0x0000000000520000-0x0000000000560000-memory.dmp
memory/2668-4-0x0000000000520000-0x0000000000560000-memory.dmp
memory/2716-5-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-7-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-9-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-10-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2716-13-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-15-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2668-16-0x0000000073F50000-0x00000000744FB000-memory.dmp
memory/2716-18-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-19-0x00000000739A0000-0x0000000073F4B000-memory.dmp
memory/2716-22-0x0000000000540000-0x0000000000580000-memory.dmp
memory/2716-24-0x00000000739A0000-0x0000000073F4B000-memory.dmp
memory/2716-25-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-26-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-27-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-28-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-23-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-21-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-29-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-31-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-33-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-34-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-37-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-39-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-40-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-42-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2716-43-0x0000000000540000-0x0000000000580000-memory.dmp
memory/2716-45-0x0000000000540000-0x0000000000580000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp4A1A.tmp
| MD5 | 1e066fb33041a599e72459f8e659972e |
| SHA1 | 1c4787d843093c56a328003247a74b23238224e7 |
| SHA256 | 44d6b3fbd67563b2f32086a6ec66d726db9ef425821af249ece97da48854d361 |
| SHA512 | f1e8d8055951009a3289a4237df6597cd0aac83ba5b379f535b127459c8e04ddcf2e17346840a180409f4ed212113b3f9545e2e623b9a6e203bca4e35ff9e395 |
C:\Users\Admin\AppData\Local\Temp\tmp4CAB.tmp
| MD5 | 819bdbdac3be050783d203020e6c4c30 |
| SHA1 | a373521fceb21cac8b93e55ee48578e40a6e740b |
| SHA256 | 0e5dedca6d0d3c50ebcedb5bbf51ef3d434eb6b43da46764205de7636131f053 |
| SHA512 | cece1c4d8b4db79fc6e3cd225efaccdf9d2493f28991b1d48439944af38aaa61a215bd00a0beedcbdecc4f1ec5be0843774375a483f3d4a573a3980c54798cbd |
memory/2716-52-0x00000000739A0000-0x0000000073F4B000-memory.dmp
memory/2716-53-0x0000000000540000-0x0000000000580000-memory.dmp
memory/2716-54-0x00000000739A0000-0x0000000073F4B000-memory.dmp
memory/2716-55-0x0000000000540000-0x0000000000580000-memory.dmp
memory/2716-56-0x0000000000540000-0x0000000000580000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-27 05:19
Reported
2024-01-27 05:22
Platform
win10v2004-20231215-en
Max time kernel
142s
Max time network
150s
Command Line
Signatures
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeRestorePrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2724 wrote to memory of 4716 | N/A | C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe |
| PID 2724 wrote to memory of 4716 | N/A | C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe |
| PID 2724 wrote to memory of 4716 | N/A | C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe
"C:\Users\Admin\AppData\Local\Temp\795f466f1d7046801dff29d26e922b35.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 1076
Network
| Country | Destination | Domain | Proto |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.121.231.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.173.189.20.in-addr.arpa | udp |
Files
memory/2724-0-0x0000000075180000-0x0000000075731000-memory.dmp
memory/2724-1-0x0000000075180000-0x0000000075731000-memory.dmp
memory/2724-2-0x0000000000DF0000-0x0000000000E00000-memory.dmp
memory/2724-9-0x0000000075180000-0x0000000075731000-memory.dmp