Analysis Overview
SHA256
5f3bd6c7e98fd1a5af9cfc95f2ff61670db0099a52caeaeae90ce527d0736a33
Threat Level: Known bad
The file a95aa8f30ca55435085536fa44267ebe was found to be: Known bad.
Malicious Activity Summary
XtremeRAT
Xtremerat family
Detect XtremeRAT payload
Modifies Installed Components in the registry
Deletes itself
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-27 14:07
Signatures
Detect XtremeRAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Xtremerat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-27 14:07
Reported
2024-02-27 14:10
Platform
win10v2004-20240226-en
Max time kernel
148s
Max time network
156s
Command Line
Signatures
Detect XtremeRAT payload
| 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 |
| N/A | N/A | N/A | N/A |
XtremeRAT
Modifies Installed Components in the registry
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{61ESDE00-7JEI-D478-YP30-51F6J284W87C} | C:\Users\Admin\AppData\Local\Temp\a95aa8f30ca55435085536fa44267ebe.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{61ESDE00-7JEI-D478-YP30-51F6J284W87C}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\flashEXE\\ctfmon.exe restart" | C:\Users\Admin\AppData\Local\Temp\a95aa8f30ca55435085536fa44267ebe.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{61ESDE00-7JEI-D478-YP30-51F6J284W87C} | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{61ESDE00-7JEI-D478-YP30-51F6J284W87C}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\flashEXE\\ctfmon.exe restart" | C:\Windows\SysWOW64\svchost.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Roaming\\flashEXE\\ctfmon.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Roaming\\flashEXE\\ctfmon.exe" | C:\Users\Admin\AppData\Local\Temp\a95aa8f30ca55435085536fa44267ebe.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Roaming\\flashEXE\\ctfmon.exe" | C:\Users\Admin\AppData\Local\Temp\a95aa8f30ca55435085536fa44267ebe.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Roaming\\flashEXE\\ctfmon.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a95aa8f30ca55435085536fa44267ebe.exe
"C:\Users\Admin\AppData\Local\Temp\a95aa8f30ca55435085536fa44267ebe.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
C:\Windows\SysWOW64\explorer.exe
explorer.exe
C:\Windows\SysWOW64\explorer.exe
explorer.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | 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 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | 206.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 52.111.227.13:443 | tcp | |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | 175.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
Files
memory/2956-6-0x0000000000C80000-0x0000000000C93000-memory.dmp
C:\Users\Admin\AppData\Roaming\flashEXE\ctfmon.exe
| MD5 | a95aa8f30ca55435085536fa44267ebe |
| SHA1 | 75eee9f9eed3b142c0187a38ad7df62181254c81 |
| SHA256 | 5f3bd6c7e98fd1a5af9cfc95f2ff61670db0099a52caeaeae90ce527d0736a33 |
| SHA512 | b9c2d511f70a5d53ea51bf01288eb9d96b41808d356ae1b235a8da7d91cc37721f36f14fdf049f5e54dc6555beca5916844d1fe42199a55b71a43d26d1e2ecea |
memory/3560-8-0x0000000000C80000-0x0000000000C93000-memory.dmp
memory/1972-9-0x0000000000C80000-0x0000000000C93000-memory.dmp
memory/4380-10-0x0000000000C80000-0x0000000000C93000-memory.dmp
memory/1972-11-0x0000000000C80000-0x0000000000C93000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-27 14:07
Reported
2024-02-27 14:10
Platform
win7-20240221-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Detect XtremeRAT payload
| 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 |
| N/A | N/A | N/A | N/A |
XtremeRAT
Modifies Installed Components in the registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{61ESDE00-7JEI-D478-YP30-51F6J284W87C}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\flashEXE\\ctfmon.exe restart" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{61ESDE00-7JEI-D478-YP30-51F6J284W87C} | C:\Users\Admin\AppData\Local\Temp\a95aa8f30ca55435085536fa44267ebe.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{61ESDE00-7JEI-D478-YP30-51F6J284W87C}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\flashEXE\\ctfmon.exe restart" | C:\Users\Admin\AppData\Local\Temp\a95aa8f30ca55435085536fa44267ebe.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{61ESDE00-7JEI-D478-YP30-51F6J284W87C} | C:\Windows\SysWOW64\svchost.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Roaming\\flashEXE\\ctfmon.exe" | C:\Users\Admin\AppData\Local\Temp\a95aa8f30ca55435085536fa44267ebe.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Roaming\\flashEXE\\ctfmon.exe" | C:\Users\Admin\AppData\Local\Temp\a95aa8f30ca55435085536fa44267ebe.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Roaming\\flashEXE\\ctfmon.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Roaming\\flashEXE\\ctfmon.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a95aa8f30ca55435085536fa44267ebe.exe
"C:\Users\Admin\AppData\Local\Temp\a95aa8f30ca55435085536fa44267ebe.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
C:\Windows\SysWOW64\explorer.exe
explorer.exe
C:\Windows\SysWOW64\explorer.exe
explorer.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | rax.no-ip.biz | udp |
Files
memory/2036-6-0x0000000000C80000-0x0000000000C93000-memory.dmp
memory/2036-8-0x0000000000C80000-0x0000000000C93000-memory.dmp
C:\Users\Admin\AppData\Roaming\flashEXE\ctfmon.exe
| MD5 | a95aa8f30ca55435085536fa44267ebe |
| SHA1 | 75eee9f9eed3b142c0187a38ad7df62181254c81 |
| SHA256 | 5f3bd6c7e98fd1a5af9cfc95f2ff61670db0099a52caeaeae90ce527d0736a33 |
| SHA512 | b9c2d511f70a5d53ea51bf01288eb9d96b41808d356ae1b235a8da7d91cc37721f36f14fdf049f5e54dc6555beca5916844d1fe42199a55b71a43d26d1e2ecea |
memory/2560-12-0x0000000000C80000-0x0000000000C93000-memory.dmp
memory/2212-15-0x0000000000C80000-0x0000000000C93000-memory.dmp
memory/2188-16-0x0000000000C80000-0x0000000000C93000-memory.dmp
memory/2212-17-0x0000000000C80000-0x0000000000C93000-memory.dmp