Analysis Overview
SHA256
b98132aea04a11317b8756786a12f51adbabe38e90d43fdfbc3095e1ad4c4e9a
Threat Level: Known bad
The file b98132aea04a11317b8756786a12f51adbabe38e90d43fdfbc3095e1ad4c4e9a.exe was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Detects executables attemping to enumerate video devices using WMI
Detects executables containing the string DcRatBy
Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-02 01:23
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-02 01:23
Reported
2024-06-02 01:26
Platform
win7-20240508-en
Max time kernel
146s
Max time network
151s
Command Line
Signatures
AsyncRat
Detects executables attemping to enumerate video devices using WMI
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detects executables containing the string DcRatBy
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\SmokerLtd = "C:\\Users\\Admin\\Documents\\Noments\\Toopan.exe" | C:\Users\Admin\AppData\Local\Temp\b98132aea04a11317b8756786a12f51adbabe38e90d43fdfbc3095e1ad4c4e9a.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2740 set thread context of 2052 | N/A | C:\Users\Admin\AppData\Local\Temp\b98132aea04a11317b8756786a12f51adbabe38e90d43fdfbc3095e1ad4c4e9a.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b98132aea04a11317b8756786a12f51adbabe38e90d43fdfbc3095e1ad4c4e9a.exe
"C:\Users\Admin\AppData\Local\Temp\b98132aea04a11317b8756786a12f51adbabe38e90d43fdfbc3095e1ad4c4e9a.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 |
| SY | 94.232.249.90:8848 | tcp | |
| SY | 94.232.249.90:8848 | tcp | |
| SY | 94.232.249.90:8848 | tcp | |
| SY | 94.232.249.90:8848 | tcp | |
| SY | 94.232.249.90:8848 | tcp | |
| SY | 94.232.249.90:8848 | tcp |
Files
memory/2740-0-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/2740-1-0x0000000000567000-0x0000000000572000-memory.dmp
memory/2740-2-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/2052-4-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/2052-3-0x0000000000080000-0x0000000000092000-memory.dmp
memory/2052-5-0x0000000000080000-0x0000000000092000-memory.dmp
memory/2052-7-0x0000000000080000-0x0000000000092000-memory.dmp
memory/2052-9-0x0000000000080000-0x0000000000092000-memory.dmp
memory/2740-10-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/2052-11-0x00000000747CE000-0x00000000747CF000-memory.dmp
memory/2052-12-0x00000000747C0000-0x0000000074EAE000-memory.dmp
memory/2052-13-0x00000000747C0000-0x0000000074EAE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-02 01:23
Reported
2024-06-02 01:26
Platform
win10v2004-20240508-en
Max time kernel
148s
Max time network
154s
Command Line
Signatures
AsyncRat
Detects executables attemping to enumerate video devices using WMI
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detects executables containing the string DcRatBy
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SmokerLtd = "C:\\Users\\Admin\\Documents\\Noments\\Toopan.exe" | C:\Users\Admin\AppData\Local\Temp\b98132aea04a11317b8756786a12f51adbabe38e90d43fdfbc3095e1ad4c4e9a.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2788 set thread context of 2176 | N/A | C:\Users\Admin\AppData\Local\Temp\b98132aea04a11317b8756786a12f51adbabe38e90d43fdfbc3095e1ad4c4e9a.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b98132aea04a11317b8756786a12f51adbabe38e90d43fdfbc3095e1ad4c4e9a.exe
"C:\Users\Admin\AppData\Local\Temp\b98132aea04a11317b8756786a12f51adbabe38e90d43fdfbc3095e1ad4c4e9a.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 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| SY | 94.232.249.90:8848 | tcp | |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| SY | 94.232.249.90:8848 | tcp | |
| US | 8.8.8.8:53 | 240.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| SY | 94.232.249.90:8848 | tcp | |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| SY | 94.232.249.90:8848 | tcp | |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| SY | 94.232.249.90:8848 | tcp | |
| SY | 94.232.249.90:8848 | tcp |
Files
memory/2788-0-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/2788-1-0x0000000000567000-0x0000000000572000-memory.dmp
memory/2788-3-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/2788-2-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/2176-4-0x0000000000FC0000-0x0000000000FD2000-memory.dmp
memory/2788-5-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/2176-6-0x00000000003F0000-0x00000000005FF000-memory.dmp