Analysis Overview
SHA256
ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390
Threat Level: Known bad
The file ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390 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 19:48
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-06 19:48
Reported
2024-05-06 19:50
Platform
win10v2004-20240419-en
Max time kernel
140s
Max time network
110s
Command Line
Signatures
GCleaner
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.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 4596 wrote to memory of 4772 | N/A | C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4596 wrote to memory of 4772 | N/A | C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4596 wrote to memory of 4772 | N/A | C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4772 wrote to memory of 4508 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4772 wrote to memory of 4508 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4772 wrote to memory of 4508 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe
"C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4596 -ip 4596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 740
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4596 -ip 4596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 780
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4596 -ip 4596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 780
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4596 -ip 4596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 792
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4596 -ip 4596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 904
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4596 -ip 4596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 984
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4596 -ip 4596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 1284
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4596 -ip 4596
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 1360
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.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 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| DE | 185.172.128.90:80 | 185.172.128.90 | tcp |
| NL | 23.62.61.138:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.128.172.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.251.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.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 |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
Files
memory/4596-3-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4596-2-0x0000000001B70000-0x0000000001B9D000-memory.dmp
memory/4596-1-0x0000000001D60000-0x0000000001E60000-memory.dmp
memory/4596-6-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4596-5-0x0000000000400000-0x0000000001A15000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-06 19:48
Reported
2024-05-06 19:50
Platform
win11-20240419-en
Max time kernel
146s
Max time network
151s
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 2752 wrote to memory of 3776 | N/A | C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2752 wrote to memory of 3776 | N/A | C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2752 wrote to memory of 3776 | N/A | C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3776 wrote to memory of 4832 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 3776 wrote to memory of 4832 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 3776 wrote to memory of 4832 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe
"C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2752 -ip 2752
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 772
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2752 -ip 2752
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 780
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2752 -ip 2752
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 780
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2752 -ip 2752
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 788
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2752 -ip 2752
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 976
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2752 -ip 2752
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 1060
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2752 -ip 2752
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 1112
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2752 -ip 2752
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 1436
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2752 -ip 2752
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "ac3b6b4c7fbf555411aca460dc072527516012768474af8bb41650653b3ea390.exe" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 1536
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 | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
Files
memory/2752-3-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2752-2-0x0000000003720000-0x000000000374D000-memory.dmp
memory/2752-1-0x0000000001BD0000-0x0000000001CD0000-memory.dmp
memory/2752-6-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2752-5-0x0000000000400000-0x0000000001A15000-memory.dmp