Analysis Overview
SHA256
36edf4090f6e91fdc91a9bc3ec1f94c8cabad7ee22dface2651e1f01c1730ab8
Threat Level: Known bad
The file 36edf4090f6e91fdc91a9bc3ec1f94c8cabad7ee22dface2651e1f01c1730ab8 was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Adds Run key to start application
Suspicious use of SetThreadContext
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-02 20:28
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-02 20:28
Reported
2024-08-02 20:30
Platform
win7-20240705-en
Max time kernel
122s
Max time network
142s
Command Line
Signatures
AsyncRat
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\ExpressVpnUpdater = "C:\\Users\\Admin\\Pictures\\Expressvpn\\ExpressVpn.exe" | C:\Users\Admin\AppData\Local\Temp\36edf4090f6e91fdc91a9bc3ec1f94c8cabad7ee22dface2651e1f01c1730ab8.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2412 set thread context of 1028 | N/A | C:\Users\Admin\AppData\Local\Temp\36edf4090f6e91fdc91a9bc3ec1f94c8cabad7ee22dface2651e1f01c1730ab8.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
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\36edf4090f6e91fdc91a9bc3ec1f94c8cabad7ee22dface2651e1f01c1730ab8.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\36edf4090f6e91fdc91a9bc3ec1f94c8cabad7ee22dface2651e1f01c1730ab8.exe
"C:\Users\Admin\AppData\Local\Temp\36edf4090f6e91fdc91a9bc3ec1f94c8cabad7ee22dface2651e1f01c1730ab8.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | estefmedina27.duckdns.org | udp |
| SE | 46.246.84.4:9090 | estefmedina27.duckdns.org | tcp |
Files
memory/2412-0-0x0000000000400000-0x00000000007EA000-memory.dmp
memory/2412-1-0x0000000000410000-0x000000000042A000-memory.dmp
memory/2412-2-0x0000000000400000-0x00000000007EA000-memory.dmp
memory/2412-3-0x0000000000400000-0x00000000007EA000-memory.dmp
memory/1028-5-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/1028-4-0x0000000000080000-0x0000000000092000-memory.dmp
memory/1028-6-0x0000000000080000-0x0000000000092000-memory.dmp
memory/1028-10-0x0000000000080000-0x0000000000092000-memory.dmp
memory/1028-8-0x0000000000080000-0x0000000000092000-memory.dmp
memory/2412-11-0x0000000000400000-0x00000000007EA000-memory.dmp
memory/1028-12-0x000000007471E000-0x000000007471F000-memory.dmp
memory/1028-13-0x0000000074710000-0x0000000074DFE000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Cab1CF5.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
memory/1028-30-0x000000007471E000-0x000000007471F000-memory.dmp
memory/1028-31-0x0000000074710000-0x0000000074DFE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-02 20:28
Reported
2024-08-02 20:30
Platform
win10v2004-20240802-en
Max time kernel
120s
Max time network
144s
Command Line
Signatures
AsyncRat
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\ExpressVpnUpdater = "C:\\Users\\Admin\\Pictures\\Expressvpn\\ExpressVpn.exe" | C:\Users\Admin\AppData\Local\Temp\36edf4090f6e91fdc91a9bc3ec1f94c8cabad7ee22dface2651e1f01c1730ab8.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1812 set thread context of 4468 | N/A | C:\Users\Admin\AppData\Local\Temp\36edf4090f6e91fdc91a9bc3ec1f94c8cabad7ee22dface2651e1f01c1730ab8.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
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\36edf4090f6e91fdc91a9bc3ec1f94c8cabad7ee22dface2651e1f01c1730ab8.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\36edf4090f6e91fdc91a9bc3ec1f94c8cabad7ee22dface2651e1f01c1730ab8.exe
"C:\Users\Admin\AppData\Local\Temp\36edf4090f6e91fdc91a9bc3ec1f94c8cabad7ee22dface2651e1f01c1730ab8.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | estefmedina27.duckdns.org | udp |
| SE | 46.246.84.4:9090 | estefmedina27.duckdns.org | tcp |
| US | 8.8.8.8:53 | 4.84.246.46.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.140.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
Files
memory/1812-0-0x0000000000400000-0x00000000007EA000-memory.dmp
memory/1812-1-0x0000000000410000-0x000000000042A000-memory.dmp
memory/1812-2-0x0000000000400000-0x00000000007EA000-memory.dmp
memory/1812-3-0x0000000000400000-0x00000000007EA000-memory.dmp
memory/4468-4-0x00000000006F0000-0x0000000000702000-memory.dmp
memory/1812-5-0x0000000000400000-0x00000000007EA000-memory.dmp
memory/4468-6-0x000000007425E000-0x000000007425F000-memory.dmp
memory/4468-7-0x0000000074250000-0x0000000074A00000-memory.dmp
memory/4468-8-0x0000000005820000-0x00000000058BC000-memory.dmp
memory/4468-9-0x0000000005E70000-0x0000000006414000-memory.dmp
memory/4468-10-0x0000000005930000-0x0000000005996000-memory.dmp
memory/4468-11-0x0000000074250000-0x0000000074A00000-memory.dmp
memory/4468-12-0x000000007425E000-0x000000007425F000-memory.dmp
memory/4468-13-0x0000000074250000-0x0000000074A00000-memory.dmp
memory/4468-14-0x0000000074250000-0x0000000074A00000-memory.dmp