Analysis Overview
SHA256
9f18caf887db4cccec90f1d018538b77fd5b6e2f7bcaaecbd66fee016f98e10d
Threat Level: Known bad
The file Installer_Kms.exe was found to be: Known bad.
Malicious Activity Summary
Rhadamanthys
Suspicious use of NtCreateUserProcessOtherParentProcess
Legitimate hosting services abused for malware hosting/C2
Drops file in System32 directory
Suspicious use of SetThreadContext
Unsigned PE
System Location Discovery: System Language Discovery
Program crash
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-22 14:29
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-22 14:28
Reported
2024-09-22 14:33
Platform
win10v2004-20240802-en
Max time kernel
93s
Max time network
98s
Command Line
Signatures
Rhadamanthys
Suspicious use of NtCreateUserProcessOtherParentProcess
| Description | Indicator | Process | Target |
| PID 1788 created 2452 | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | C:\Windows\system32\sihost.exe |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | bitbucket.org | N/A | N/A |
| N/A | bitbucket.org | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\shell32.dll | C:\Users\Admin\AppData\Local\Temp\Installer_Kms.exe | N/A |
| File created | C:\Windows\SysWOW64\temp.000 | C:\Users\Admin\AppData\Local\Temp\Installer_Kms.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2508 set thread context of 1788 | N/A | C:\Users\Admin\AppData\Local\Temp\Installer_Kms.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\openwith.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Installer_Kms.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\openwith.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\openwith.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\openwith.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\openwith.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\sihost.exe
sihost.exe
C:\Users\Admin\AppData\Local\Temp\Installer_Kms.exe
"C:\Users\Admin\AppData\Local\Temp\Installer_Kms.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
C:\Windows\SysWOW64\openwith.exe
"C:\Windows\system32\openwith.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1788 -ip 1788
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 432
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1788 -ip 1788
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 420
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | bitbucket.org | udp |
| IE | 185.166.142.23:443 | bitbucket.org | tcp |
| US | 8.8.8.8:53 | 42.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.142.166.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 44.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
memory/1788-6-0x0000000000400000-0x000000000047E000-memory.dmp
memory/1788-8-0x0000000000400000-0x000000000047E000-memory.dmp
memory/1788-7-0x0000000000400000-0x000000000047E000-memory.dmp
memory/1788-9-0x0000000000400000-0x000000000047E000-memory.dmp
memory/1788-10-0x0000000003CD0000-0x00000000040D0000-memory.dmp
memory/1788-11-0x0000000003CD0000-0x00000000040D0000-memory.dmp
memory/1788-12-0x0000000003CD0000-0x00000000040D0000-memory.dmp
memory/1788-14-0x0000000003CD0000-0x00000000040D0000-memory.dmp
memory/1788-13-0x00007FFF7A690000-0x00007FFF7A885000-memory.dmp
memory/2212-17-0x00000000008F0000-0x00000000008F9000-memory.dmp
memory/1788-16-0x0000000076690000-0x00000000768A5000-memory.dmp
memory/2212-19-0x00000000025E0000-0x00000000029E0000-memory.dmp
memory/2212-20-0x00007FFF7A690000-0x00007FFF7A885000-memory.dmp
memory/2212-22-0x0000000076690000-0x00000000768A5000-memory.dmp
memory/1788-23-0x0000000003CD0000-0x00000000040D0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-22 14:28
Reported
2024-09-22 14:33
Platform
win11-20240802-en
Max time kernel
90s
Max time network
94s
Command Line
Signatures
Rhadamanthys
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | bitbucket.org | N/A | N/A |
| N/A | bitbucket.org | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\temp.000 | C:\Users\Admin\AppData\Local\Temp\Installer_Kms.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\shell32.dll | C:\Users\Admin\AppData\Local\Temp\Installer_Kms.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1388 set thread context of 4492 | N/A | C:\Users\Admin\AppData\Local\Temp\Installer_Kms.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.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\Installer_Kms.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Installer_Kms.exe
"C:\Users\Admin\AppData\Local\Temp\Installer_Kms.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4492 -ip 4492
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 412
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | bitbucket.org | udp |
| IE | 185.166.142.22:443 | bitbucket.org | tcp |
| US | 8.8.8.8:53 | 22.142.166.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.140.123.92.in-addr.arpa | udp |
Files
memory/4492-8-0x0000000000400000-0x000000000047E000-memory.dmp
memory/4492-9-0x0000000000400000-0x000000000047E000-memory.dmp
memory/4492-12-0x0000000000400000-0x000000000047E000-memory.dmp
memory/4492-10-0x0000000000400000-0x000000000047E000-memory.dmp