Analysis Overview
SHA256
40a8661f26ac2485ad055e05bd6dd6f88a895013818fe4d8743a0304b8a83d01
Threat Level: Likely malicious
The file 40a8661f26ac2485ad055e05bd6dd6f88a895013818fe4d8743a0304b8a83d01N.exe was found to be: Likely malicious.
Malicious Activity Summary
Event Triggered Execution: AppInit DLLs
Executes dropped EXE
Drops file in Program Files directory
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-12 13:53
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-12 13:53
Reported
2024-11-12 13:55
Platform
win7-20240708-en
Max time kernel
31s
Max time network
16s
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\40a8661f26ac2485ad055e05bd6dd6f88a895013818fe4d8743a0304b8a83d01N.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\40a8661f26ac2485ad055e05bd6dd6f88a895013818fe4d8743a0304b8a83d01N.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\40a8661f26ac2485ad055e05bd6dd6f88a895013818fe4d8743a0304b8a83d01N.exe | N/A |
| N/A | N/A | C:\PROGRA~3\Mozilla\yofzeuh.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2792 wrote to memory of 2940 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\yofzeuh.exe |
| PID 2792 wrote to memory of 2940 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\yofzeuh.exe |
| PID 2792 wrote to memory of 2940 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\yofzeuh.exe |
| PID 2792 wrote to memory of 2940 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\yofzeuh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\40a8661f26ac2485ad055e05bd6dd6f88a895013818fe4d8743a0304b8a83d01N.exe
"C:\Users\Admin\AppData\Local\Temp\40a8661f26ac2485ad055e05bd6dd6f88a895013818fe4d8743a0304b8a83d01N.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {5942D638-A7BF-45C9-AF24-5A9427963D56} S-1-5-18:NT AUTHORITY\System:Service:
C:\PROGRA~3\Mozilla\yofzeuh.exe
C:\PROGRA~3\Mozilla\yofzeuh.exe -qmgjyzc
Network
Files
memory/1508-0-0x0000000000400000-0x000000000045B000-memory.dmp
memory/1508-2-0x0000000000400000-0x000000000045B000-memory.dmp
memory/1508-1-0x0000000000250000-0x00000000002AC000-memory.dmp
memory/1508-4-0x0000000000400000-0x000000000045B000-memory.dmp
C:\PROGRA~3\Mozilla\yofzeuh.exe
| MD5 | 6edbd6bc9feead8416e498cafaf01533 |
| SHA1 | 8f3e7bf3590cbaa3c6755cb6cc7c0b1d0704f7a2 |
| SHA256 | ef7d33120d3ed18d02e630d4f3d46f11d6b01f0decad0e75766e37eb29cab96c |
| SHA512 | e3b41e692dbbb35efde767605c70489fb7b2ccc6c57f00f6cd8a514e6d3ef24d3a17aefe31fa576723286c527ae915109fc988e8aa2d77fae6adaf4782832866 |
memory/2940-7-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2940-8-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2940-10-0x0000000000400000-0x000000000045B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-12 13:53
Reported
2024-11-12 13:55
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
95s
Command Line
Signatures
Event Triggered Execution: AppInit DLLs
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\oevgipl.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\oevgipl.exe | C:\Users\Admin\AppData\Local\Temp\40a8661f26ac2485ad055e05bd6dd6f88a895013818fe4d8743a0304b8a83d01N.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\sosyokm.dll | C:\PROGRA~3\Mozilla\oevgipl.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\PROGRA~3\Mozilla\oevgipl.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\40a8661f26ac2485ad055e05bd6dd6f88a895013818fe4d8743a0304b8a83d01N.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\40a8661f26ac2485ad055e05bd6dd6f88a895013818fe4d8743a0304b8a83d01N.exe
"C:\Users\Admin\AppData\Local\Temp\40a8661f26ac2485ad055e05bd6dd6f88a895013818fe4d8743a0304b8a83d01N.exe"
C:\PROGRA~3\Mozilla\oevgipl.exe
C:\PROGRA~3\Mozilla\oevgipl.exe -gsmgbug
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
memory/2060-0-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2060-1-0x0000000002200000-0x000000000225C000-memory.dmp
memory/2060-2-0x0000000000400000-0x000000000045B000-memory.dmp
C:\PROGRA~3\Mozilla\oevgipl.exe
| MD5 | 20e5011361906bff72ccced15f42fbd2 |
| SHA1 | 86caa779cf6230fd1695e15b2c593a0c1993cb3b |
| SHA256 | cefed6881321b703ac2eb6f9ed92eda654aaf9c56a58378a5aa0cf320b3cad49 |
| SHA512 | a8ddff6f2c487e621b37926a0894bd16f823a7b16a4eccd0cf4deedbb6e7c96895ff903c9078c0989a7bd67eef544a5224d916121b37794aa0f37d36de261441 |
memory/2060-6-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2060-8-0x0000000002200000-0x000000000225C000-memory.dmp
memory/560-9-0x0000000000400000-0x000000000045B000-memory.dmp
memory/560-10-0x0000000000400000-0x000000000045B000-memory.dmp
memory/560-12-0x0000000000400000-0x000000000045B000-memory.dmp