Analysis Overview
SHA256
b8636dc44460344787851320f1af1763c796337eb84721964191d17c202685dd
Threat Level: Known bad
The file 1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.zip was found to be: Known bad.
Malicious Activity Summary
GCleaner
Checks computer location settings
Deletes itself
Unsigned PE
Enumerates physical storage devices
Program crash
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-02 13:09
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-02 13:08
Reported
2024-04-02 13:12
Platform
win7-20240221-en
Max time kernel
117s
Max time network
121s
Command Line
Signatures
GCleaner
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Enumerates physical storage devices
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
Processes
C:\Users\Admin\AppData\Local\Temp\1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe
"C:\Users\Admin\AppData\Local\Temp\1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe" /f
Network
| Country | Destination | Domain | Proto |
| DE | 185.172.128.90:80 | 185.172.128.90 | tcp |
Files
memory/2504-1-0x0000000000C90000-0x0000000000D90000-memory.dmp
memory/2504-2-0x0000000000220000-0x000000000024D000-memory.dmp
memory/2504-3-0x0000000000400000-0x0000000000AF0000-memory.dmp
memory/2504-5-0x0000000000400000-0x0000000000AF0000-memory.dmp
memory/2504-6-0x0000000000C90000-0x0000000000D90000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-02 13:08
Reported
2024-04-02 13:11
Platform
win10v2004-20240226-en
Max time kernel
147s
Max time network
157s
Command Line
Signatures
GCleaner
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.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 3252 wrote to memory of 1308 | N/A | C:\Users\Admin\AppData\Local\Temp\1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3252 wrote to memory of 1308 | N/A | C:\Users\Admin\AppData\Local\Temp\1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3252 wrote to memory of 1308 | N/A | C:\Users\Admin\AppData\Local\Temp\1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1308 wrote to memory of 4108 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1308 wrote to memory of 4108 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1308 wrote to memory of 4108 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe
"C:\Users\Admin\AppData\Local\Temp\1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3252 -ip 3252
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 748
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3252 -ip 3252
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 756
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3252 -ip 3252
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 756
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3252 -ip 3252
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 836
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3252 -ip 3252
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 904
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3252 -ip 3252
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 980
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3252 -ip 3252
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 1332
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3252 -ip 3252
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037.exe" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 1432
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 218.110.86.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.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 | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.34.16.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 137.71.105.51.in-addr.arpa | udp |
Files
memory/3252-1-0x0000000000D90000-0x0000000000E90000-memory.dmp
memory/3252-2-0x0000000002830000-0x000000000285D000-memory.dmp
memory/3252-3-0x0000000000400000-0x0000000000AF0000-memory.dmp
memory/3252-5-0x0000000000400000-0x0000000000AF0000-memory.dmp
memory/3252-6-0x0000000002830000-0x000000000285D000-memory.dmp