Analysis Overview
SHA256
40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d
Threat Level: Known bad
The file 40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d was found to be: Known bad.
Malicious Activity Summary
GCleaner
Checks computer location settings
Enumerates physical storage devices
Program crash
Unsigned PE
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-06 10:27
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-06 10:27
Reported
2024-05-06 10:29
Platform
win10v2004-20240419-en
Max time kernel
133s
Max time network
101s
Command Line
Signatures
GCleaner
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe | N/A |
Enumerates physical storage devices
Program crash
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 2928 wrote to memory of 3468 | N/A | C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2928 wrote to memory of 3468 | N/A | C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2928 wrote to memory of 3468 | N/A | C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3468 wrote to memory of 4596 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 3468 wrote to memory of 4596 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 3468 wrote to memory of 4596 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe
"C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2928 -ip 2928
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 740
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2928 -ip 2928
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 760
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2928 -ip 2928
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 776
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2928 -ip 2928
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 832
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2928 -ip 2928
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 904
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2928 -ip 2928
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 1000
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2928 -ip 2928
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 1064
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 2928 -ip 2928
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 1344
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2928 -ip 2928
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 1384
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe" /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| DE | 185.172.128.90:80 | 185.172.128.90 | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.128.172.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 49.15.97.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| 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 | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
Files
memory/2928-3-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2928-2-0x0000000003630000-0x000000000365D000-memory.dmp
memory/2928-1-0x0000000001AB0000-0x0000000001BB0000-memory.dmp
memory/2928-6-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2928-5-0x0000000000400000-0x0000000001A16000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-06 10:27
Reported
2024-05-06 10:29
Platform
win11-20240426-en
Max time kernel
146s
Max time network
150s
Command Line
Signatures
GCleaner
Enumerates physical storage devices
Program crash
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 1596 wrote to memory of 2804 | N/A | C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1596 wrote to memory of 2804 | N/A | C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1596 wrote to memory of 2804 | N/A | C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2804 wrote to memory of 4972 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2804 wrote to memory of 4972 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2804 wrote to memory of 4972 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe
"C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1596 -ip 1596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 780
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1596 -ip 1596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 788
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1596 -ip 1596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 788
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1596 -ip 1596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 804
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1596 -ip 1596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 976
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1596 -ip 1596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 984
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1596 -ip 1596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 1440
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1596 -ip 1596
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "40bf8658504479ccc0400eddf69a2bf173143520753304cef9776c94f206e66d.exe" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 1344
Network
| Country | Destination | Domain | Proto |
| DE | 185.172.128.90:80 | 185.172.128.90 | tcp |
| US | 8.8.8.8:53 | 90.128.172.185.in-addr.arpa | udp |
| US | 52.111.227.11:443 | tcp |
Files
memory/1596-1-0x0000000001AE0000-0x0000000001BE0000-memory.dmp
memory/1596-3-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1596-2-0x0000000003720000-0x000000000374D000-memory.dmp
memory/1596-6-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1596-5-0x0000000000400000-0x0000000001A16000-memory.dmp