Analysis Overview
SHA256
b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee
Threat Level: Known bad
The file b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee was found to be: Known bad.
Malicious Activity Summary
GCleaner
Deletes itself
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-05 22:48
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-05 22:48
Reported
2024-09-05 22:53
Platform
win7-20240729-en
Max time kernel
121s
Max time network
122s
Command Line
Signatures
GCleaner
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Enumerates physical storage devices
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\b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\taskkill.exe | N/A |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe
"C:\Users\Admin\AppData\Local\Temp\b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe" /f
Network
| Country | Destination | Domain | Proto |
| RU | 80.66.75.114:80 | 80.66.75.114 | tcp |
Files
memory/2172-1-0x00000000005A0000-0x00000000006A0000-memory.dmp
memory/2172-3-0x0000000000400000-0x0000000000445000-memory.dmp
memory/2172-2-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2172-8-0x00000000005A0000-0x00000000006A0000-memory.dmp
memory/2172-9-0x0000000000400000-0x000000000042F000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\8B420DKQ\download[1].htm
| MD5 | cfcd208495d565ef66e7dff9f98764da |
| SHA1 | b6589fc6ab0dc82cf12099d1c2d40ab994e8410c |
| SHA256 | 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9 |
| SHA512 | 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99 |
memory/2172-11-0x0000000000400000-0x0000000000445000-memory.dmp
memory/2172-23-0x00000000005A0000-0x00000000006A0000-memory.dmp
memory/2172-22-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2172-21-0x0000000000400000-0x0000000000445000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-05 22:48
Reported
2024-09-05 22:53
Platform
win10-20240404-en
Max time kernel
192s
Max time network
256s
Command Line
Signatures
GCleaner
Enumerates physical storage devices
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\b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\taskkill.exe | N/A |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 500 wrote to memory of 4728 | N/A | C:\Users\Admin\AppData\Local\Temp\b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 500 wrote to memory of 4728 | N/A | C:\Users\Admin\AppData\Local\Temp\b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 500 wrote to memory of 4728 | N/A | C:\Users\Admin\AppData\Local\Temp\b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4728 wrote to memory of 516 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4728 wrote to memory of 516 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4728 wrote to memory of 516 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe
"C:\Users\Admin\AppData\Local\Temp\b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "b8847ab80137552fb3cf73bdc522ba695bf7a20bf3a68ef02e940c2d10dc38ee.exe" /f
Network
| Country | Destination | Domain | Proto |
| RU | 80.66.75.114:80 | 80.66.75.114 | tcp |
| US | 8.8.8.8:53 | 114.75.66.80.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 94.65.42.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
Files
memory/500-2-0x00000000004B0000-0x00000000004DD000-memory.dmp
memory/500-1-0x0000000000530000-0x0000000000630000-memory.dmp
memory/500-3-0x0000000000400000-0x000000000042F000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\L5P12AEX\download[1].htm
| MD5 | cfcd208495d565ef66e7dff9f98764da |
| SHA1 | b6589fc6ab0dc82cf12099d1c2d40ab994e8410c |
| SHA256 | 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9 |
| SHA512 | 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99 |
memory/500-9-0x0000000000530000-0x0000000000630000-memory.dmp
memory/500-11-0x00000000004B0000-0x00000000004DD000-memory.dmp
memory/500-12-0x0000000000400000-0x0000000000445000-memory.dmp
memory/500-13-0x0000000000400000-0x000000000042F000-memory.dmp
memory/500-21-0x0000000000400000-0x0000000000445000-memory.dmp
memory/500-22-0x0000000000400000-0x000000000042F000-memory.dmp