Analysis Overview
SHA256
4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2
Threat Level: Known bad
The file 4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2 was found to be: Known bad.
Malicious Activity Summary
GCleaner
Checks computer location settings
Program crash
Unsigned PE
Enumerates physical storage devices
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-08 09:51
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-08 09:51
Reported
2024-05-08 09:54
Platform
win10v2004-20240426-en
Max time kernel
136s
Max time network
100s
Command Line
Signatures
GCleaner
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.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 4940 wrote to memory of 1472 | N/A | C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4940 wrote to memory of 1472 | N/A | C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4940 wrote to memory of 1472 | N/A | C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1472 wrote to memory of 2744 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1472 wrote to memory of 2744 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1472 wrote to memory of 2744 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe
"C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4940 -ip 4940
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 740
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4940 -ip 4940
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 748
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4940 -ip 4940
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 748
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4940 -ip 4940
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 784
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4940 -ip 4940
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 904
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4940 -ip 4940
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 952
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4940 -ip 4940
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 1304
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe" /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 131.253.33.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| NL | 23.62.61.160:443 | www.bing.com | tcp |
| DE | 185.172.128.90:80 | 185.172.128.90 | tcp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.33.253.131.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 160.61.62.23.in-addr.arpa | udp |
| NL | 23.62.61.160:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 90.128.172.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 139.53.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.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 |
Files
memory/4940-3-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4940-2-0x0000000001B60000-0x0000000001B8D000-memory.dmp
memory/4940-1-0x0000000001D80000-0x0000000001E80000-memory.dmp
memory/4940-6-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4940-5-0x0000000000400000-0x0000000001A0A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-08 09:51
Reported
2024-05-08 09:54
Platform
win11-20240419-en
Max time kernel
91s
Max time network
97s
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 4916 wrote to memory of 2124 | N/A | C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4916 wrote to memory of 2124 | N/A | C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4916 wrote to memory of 2124 | N/A | C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2124 wrote to memory of 428 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2124 wrote to memory of 428 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2124 wrote to memory of 428 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe
"C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4916 -ip 4916
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 776
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4916 -ip 4916
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 784
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4916 -ip 4916
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 784
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4916 -ip 4916
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 796
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4916 -ip 4916
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 976
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4916 -ip 4916
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 1080
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4916 -ip 4916
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 1436
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4916 -ip 4916
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 1340
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "4efa9be9b7efa864f2a4157759d12372d568c8df94c8426f7d3157f2600dd1f2.exe" /f
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 |
Files
memory/4916-1-0x0000000001B90000-0x0000000001C90000-memory.dmp
memory/4916-2-0x0000000001B60000-0x0000000001B8D000-memory.dmp
memory/4916-3-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4916-6-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4916-5-0x0000000000400000-0x0000000001A0A000-memory.dmp