Analysis Overview
SHA256
bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0
Threat Level: Known bad
The file bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0 was found to be: Known bad.
Malicious Activity Summary
GCleaner
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
Program crash
Suspicious use of WriteProcessMemory
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-07 23:50
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-07 23:50
Reported
2024-05-07 23:53
Platform
win10v2004-20240419-en
Max time kernel
129s
Max time network
97s
Command Line
Signatures
GCleaner
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.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 1308 wrote to memory of 2636 | N/A | C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1308 wrote to memory of 2636 | N/A | C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1308 wrote to memory of 2636 | N/A | C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2636 wrote to memory of 1052 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2636 wrote to memory of 1052 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2636 wrote to memory of 1052 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe
"C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1308 -ip 1308
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1308 -s 748
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1308 -ip 1308
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1308 -s 740
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1308 -ip 1308
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1308 -s 800
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1308 -ip 1308
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1308 -s 832
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1308 -ip 1308
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1308 -s 904
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1308 -ip 1308
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1308 -s 992
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 1308 -ip 1308
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1308 -s 1296
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1308 -ip 1308
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1308 -s 1456
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe" /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.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 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| DE | 185.172.128.90:80 | 185.172.128.90 | tcp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.128.172.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 51.15.97.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.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 |
Files
memory/1308-1-0x0000000002E80000-0x0000000002F80000-memory.dmp
memory/1308-2-0x0000000002C60000-0x0000000002C8D000-memory.dmp
memory/1308-3-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1308-4-0x0000000000400000-0x0000000002B05000-memory.dmp
memory/1308-8-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1308-7-0x0000000002C60000-0x0000000002C8D000-memory.dmp
memory/1308-6-0x0000000000400000-0x0000000002B05000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-07 23:50
Reported
2024-05-07 23:53
Platform
win11-20240419-en
Max time kernel
91s
Max time network
94s
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 3528 wrote to memory of 1556 | N/A | C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3528 wrote to memory of 1556 | N/A | C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3528 wrote to memory of 1556 | N/A | C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1556 wrote to memory of 2160 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1556 wrote to memory of 2160 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1556 wrote to memory of 2160 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe
"C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 772
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 792
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 772
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 868
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 976
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 1060
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 1440
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 1400
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "bec53e8e538235e734a6f5e7f17f7a5c72437fda290f90e74a3a67dc006aa3e0.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/3528-1-0x00007FFC9CE20000-0x00007FFC9D029000-memory.dmp
memory/3528-2-0x00007FFC9CE20000-0x00007FFC9D029000-memory.dmp
memory/3528-5-0x00007FFC9CE20000-0x00007FFC9D029000-memory.dmp
memory/3528-4-0x0000000000400000-0x0000000002B05000-memory.dmp