Analysis Overview
SHA256
f5a67079ca773d6862aab798b84b3c175a025ae0205a15b69723c2bc5ac6ed92
Threat Level: Known bad
The file VirusShare_a5c337b9a5108d6172cbca8867b42afa was found to be: Known bad.
Malicious Activity Summary
Detect XtremeRAT payload
XtremeRAT
UPX dump on OEP (original entry point)
Modifies Installed Components in the registry
Executes dropped EXE
UPX packed file
Checks computer location settings
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-06 21:01
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-06 21:01
Reported
2024-02-06 21:04
Platform
win7-20231215-en
Max time kernel
150s
Max time network
153s
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 |
XtremeRAT
UPX dump on OEP (original entry point)
| 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 |
Modifies Installed Components in the registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\winlog.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\winlog.exe restart" | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} | C:\Windows\SysWOW64\svchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe | N/A |
UPX packed file
| 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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\winlog.exe" | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\winlog.exe" | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\winlog.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\winlog.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1964 set thread context of 2368 | N/A | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\InstallDir\winlog.exe | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
| File created | C:\Windows\InstallDir\winlog.exe | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe"
C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe"
C:\Users\Admin\AppData\Local\Temp\Decrypted.exe
"C:\Users\Admin\AppData\Local\Temp\Decrypted.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\explorer.exe
explorer.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
Files
memory/2368-3-0x0000000000400000-0x0000000000408000-memory.dmp
memory/2368-5-0x0000000000400000-0x0000000000408000-memory.dmp
\Users\Admin\AppData\Local\Temp\Decrypted.exe
| MD5 | dc2282dcfe443e577797391c58388f77 |
| SHA1 | 54fe662a36204f6bde581537fa8431013b1a7a22 |
| SHA256 | 08f265da5941c23c2869d05c563bf5aa65f7a4b4e54b607b8864e49b32466f8d |
| SHA512 | e14f107a00520975385c8324dfc7b784e0335721a801dedfbfeb2d867e8c67b6ddd9cd360709d29f12fdabc7da2dc21baed1725f2d42689769a6660f91febac5 |
memory/2852-20-0x0000000000C80000-0x0000000000C95000-memory.dmp
memory/2368-18-0x0000000000400000-0x0000000000408000-memory.dmp
memory/2368-16-0x0000000002530000-0x0000000002545000-memory.dmp
memory/2884-27-0x0000000000C80000-0x0000000000C95000-memory.dmp
memory/2884-29-0x0000000000C80000-0x0000000000C95000-memory.dmp
memory/2904-33-0x0000000000C80000-0x0000000000C95000-memory.dmp
memory/2852-34-0x0000000000C80000-0x0000000000C95000-memory.dmp
memory/2904-36-0x0000000000C80000-0x0000000000C95000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-06 21:01
Reported
2024-02-06 21:04
Platform
win10v2004-20231215-en
Max time kernel
150s
Max time network
153s
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 |
XtremeRAT
UPX dump on OEP (original entry point)
| 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 |
Modifies Installed Components in the registry
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\winlog.exe restart" | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\winlog.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
UPX packed file
| 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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\winlog.exe" | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\winlog.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\winlog.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\winlog.exe" | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3252 set thread context of 1036 | N/A | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\InstallDir\winlog.exe | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
| File created | C:\Windows\InstallDir\winlog.exe | C:\Users\Admin\AppData\Local\Temp\Decrypted.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe"
C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_a5c337b9a5108d6172cbca8867b42afa.exe"
C:\Users\Admin\AppData\Local\Temp\Decrypted.exe
"C:\Users\Admin\AppData\Local\Temp\Decrypted.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\explorer.exe
explorer.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 192.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | 23.160.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | 150.1.37.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | 45.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
| US | 8.8.8.8:53 | todohack.no-ip.biz | udp |
Files
memory/1036-5-0x0000000000400000-0x0000000000408000-memory.dmp
memory/1036-3-0x0000000000400000-0x0000000000408000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Decrypted.exe
| MD5 | dc2282dcfe443e577797391c58388f77 |
| SHA1 | 54fe662a36204f6bde581537fa8431013b1a7a22 |
| SHA256 | 08f265da5941c23c2869d05c563bf5aa65f7a4b4e54b607b8864e49b32466f8d |
| SHA512 | e14f107a00520975385c8324dfc7b784e0335721a801dedfbfeb2d867e8c67b6ddd9cd360709d29f12fdabc7da2dc21baed1725f2d42689769a6660f91febac5 |
memory/1676-17-0x0000000000C80000-0x0000000000C95000-memory.dmp
memory/1036-16-0x0000000000400000-0x0000000000408000-memory.dmp
memory/3736-24-0x0000000000C80000-0x0000000000C95000-memory.dmp
memory/4556-26-0x0000000000C80000-0x0000000000C95000-memory.dmp
memory/1676-27-0x0000000000C80000-0x0000000000C95000-memory.dmp
memory/4556-29-0x0000000000C80000-0x0000000000C95000-memory.dmp