Analysis Overview
SHA256
9e5a41afa9428ac0083d29a5b08c1ef7e6ad8f589f28631ba759bb97c9143d6e
Threat Level: Likely malicious
The file 9e5a41afa9428ac0083d29a5b08c1ef7e6ad8f589f28631ba759bb97c9143d6e.exe was found to be: Likely malicious.
Malicious Activity Summary
Event Triggered Execution: AppInit DLLs
Executes dropped EXE
Drops file in Program Files directory
System Location Discovery: System Language Discovery
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-12 11:51
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-12 11:51
Reported
2024-11-12 11:54
Platform
win7-20240708-en
Max time kernel
118s
Max time network
124s
Command Line
Signatures
Event Triggered Execution: AppInit DLLs
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\yofzeuh.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\yofzeuh.exe | C:\Users\Admin\AppData\Local\Temp\9e5a41afa9428ac0083d29a5b08c1ef7e6ad8f589f28631ba759bb97c9143d6e.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\mkkxkvk.dll | C:\PROGRA~3\Mozilla\yofzeuh.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\9e5a41afa9428ac0083d29a5b08c1ef7e6ad8f589f28631ba759bb97c9143d6e.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\PROGRA~3\Mozilla\yofzeuh.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\9e5a41afa9428ac0083d29a5b08c1ef7e6ad8f589f28631ba759bb97c9143d6e.exe | N/A |
| N/A | N/A | C:\PROGRA~3\Mozilla\yofzeuh.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2488 wrote to memory of 1976 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\yofzeuh.exe |
| PID 2488 wrote to memory of 1976 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\yofzeuh.exe |
| PID 2488 wrote to memory of 1976 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\yofzeuh.exe |
| PID 2488 wrote to memory of 1976 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\yofzeuh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\9e5a41afa9428ac0083d29a5b08c1ef7e6ad8f589f28631ba759bb97c9143d6e.exe
"C:\Users\Admin\AppData\Local\Temp\9e5a41afa9428ac0083d29a5b08c1ef7e6ad8f589f28631ba759bb97c9143d6e.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {4D8C61EE-3338-4361-AB22-73D376A9C833} S-1-5-18:NT AUTHORITY\System:Service:
C:\PROGRA~3\Mozilla\yofzeuh.exe
C:\PROGRA~3\Mozilla\yofzeuh.exe -qmgjyzc
Network
Files
memory/388-0-0x0000000000400000-0x000000000045B000-memory.dmp
memory/388-1-0x0000000000460000-0x00000000004BC000-memory.dmp
memory/388-2-0x0000000000400000-0x000000000045B000-memory.dmp
memory/388-4-0x0000000000400000-0x000000000045B000-memory.dmp
memory/388-5-0x0000000000460000-0x00000000004BC000-memory.dmp
C:\PROGRA~3\Mozilla\yofzeuh.exe
| MD5 | 5c6d56caf5b651f2c38af4bb5b4335c0 |
| SHA1 | d7a139c7a68de491cf7c04332b5303e3eb5b8bc6 |
| SHA256 | 58d00238ea6ad7aee2d5697f66419eb4804dffbe0f1ea5fbeb4e0f2f4f6c66f7 |
| SHA512 | 91e88004001eec09f91d3026ce1b4e4485f3d6bcff1acb5739d9142ef4fd879d04c72958fbeee59bbfb0dd926f73c7a4629fe658c6172faf94e343391c1aaa10 |
memory/1976-8-0x0000000000400000-0x000000000045B000-memory.dmp
memory/1976-9-0x0000000000400000-0x000000000045B000-memory.dmp
memory/1976-11-0x0000000000400000-0x000000000045B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-12 11:51
Reported
2024-11-12 11:54
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
137s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\9e5a41afa9428ac0083d29a5b08c1ef7e6ad8f589f28631ba759bb97c9143d6e.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\9e5a41afa9428ac0083d29a5b08c1ef7e6ad8f589f28631ba759bb97c9143d6e.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\9e5a41afa9428ac0083d29a5b08c1ef7e6ad8f589f28631ba759bb97c9143d6e.exe
"C:\Users\Admin\AppData\Local\Temp\9e5a41afa9428ac0083d29a5b08c1ef7e6ad8f589f28631ba759bb97c9143d6e.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1900 -ip 1900
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1900 -s 460
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 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 64.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 100.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
Files
memory/1900-0-0x0000000000400000-0x000000000045B000-memory.dmp
memory/1900-1-0x00000000021D0000-0x000000000222C000-memory.dmp
memory/1900-2-0x0000000000400000-0x000000000045B000-memory.dmp
memory/1900-3-0x00000000021D0000-0x000000000222C000-memory.dmp