Analysis Overview
SHA256
8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c
Threat Level: Known bad
The file 8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c 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 10:29
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-07 10:29
Reported
2024-05-07 10:32
Platform
win10v2004-20240419-en
Max time kernel
135s
Max time network
150s
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\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.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 4756 wrote to memory of 4616 | N/A | C:\Users\Admin\AppData\Local\Temp\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4756 wrote to memory of 4616 | N/A | C:\Users\Admin\AppData\Local\Temp\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4756 wrote to memory of 4616 | N/A | C:\Users\Admin\AppData\Local\Temp\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4616 wrote to memory of 4288 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4616 wrote to memory of 4288 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4616 wrote to memory of 4288 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe
"C:\Users\Admin\AppData\Local\Temp\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4756 -ip 4756
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4756 -s 740
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4756 -ip 4756
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4756 -s 768
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4756 -ip 4756
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4756 -s 796
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4756 -ip 4756
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4756 -s 832
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4756 -ip 4756
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4756 -s 904
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4756 -ip 4756
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4756 -s 980
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4756 -ip 4756
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4756 -s 904
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4756 -ip 4756
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4756 -s 1352
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4756 -ip 4756
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4756 -s 1444
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe" /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.53.126.40.in-addr.arpa | udp |
| NL | 23.62.61.155:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 155.61.62.23.in-addr.arpa | udp |
| 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 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.251.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.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 | 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/4756-3-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4756-2-0x0000000002C60000-0x0000000002C8D000-memory.dmp
memory/4756-1-0x0000000002CC0000-0x0000000002DC0000-memory.dmp
memory/4756-4-0x0000000000400000-0x0000000002AFD000-memory.dmp
memory/4756-7-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4756-6-0x0000000000400000-0x0000000002AFD000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-07 10:29
Reported
2024-05-07 10:32
Platform
win11-20240419-en
Max time kernel
147s
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 3364 wrote to memory of 2444 | N/A | C:\Users\Admin\AppData\Local\Temp\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3364 wrote to memory of 2444 | N/A | C:\Users\Admin\AppData\Local\Temp\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3364 wrote to memory of 2444 | N/A | C:\Users\Admin\AppData\Local\Temp\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2444 wrote to memory of 3680 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2444 wrote to memory of 3680 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2444 wrote to memory of 3680 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe
"C:\Users\Admin\AppData\Local\Temp\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3364 -ip 3364
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 772
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3364 -ip 3364
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 792
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3364 -ip 3364
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 772
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3364 -ip 3364
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 864
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3364 -ip 3364
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 976
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3364 -ip 3364
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 1080
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3364 -ip 3364
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 1436
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3364 -ip 3364
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 1536
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "8f66852578c88b98fc67cc45d2892c29f21650dab638e6a9a877de0286c7aa3c.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/3364-2-0x0000000002C10000-0x0000000002C3D000-memory.dmp
memory/3364-1-0x0000000002DF0000-0x0000000002EF0000-memory.dmp
memory/3364-3-0x0000000000400000-0x000000000042F000-memory.dmp
memory/3364-6-0x0000000002C10000-0x0000000002C3D000-memory.dmp
memory/3364-7-0x0000000000400000-0x000000000042F000-memory.dmp
memory/3364-5-0x0000000000400000-0x0000000002AFD000-memory.dmp