Analysis Overview
SHA256
c0ffc0537b08f2b8e752a75e940c3a004021cb7d18b0511014b28a98273a09a1
Threat Level: Likely malicious
The file c0ffc0537b08f2b8e752a75e940c3a004021cb7d18b0511014b28a98273a09a1.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 12:29
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-12 12:29
Reported
2024-11-12 12:32
Platform
win7-20241023-en
Max time kernel
118s
Max time network
119s
Command Line
Signatures
Event Triggered Execution: AppInit DLLs
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\grzejjh.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\grzejjh.exe | C:\Users\Admin\AppData\Local\Temp\c0ffc0537b08f2b8e752a75e940c3a004021cb7d18b0511014b28a98273a09a1.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\clclgsb.dll | C:\PROGRA~3\Mozilla\grzejjh.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\c0ffc0537b08f2b8e752a75e940c3a004021cb7d18b0511014b28a98273a09a1.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\PROGRA~3\Mozilla\grzejjh.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c0ffc0537b08f2b8e752a75e940c3a004021cb7d18b0511014b28a98273a09a1.exe | N/A |
| N/A | N/A | C:\PROGRA~3\Mozilla\grzejjh.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2372 wrote to memory of 2112 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\grzejjh.exe |
| PID 2372 wrote to memory of 2112 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\grzejjh.exe |
| PID 2372 wrote to memory of 2112 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\grzejjh.exe |
| PID 2372 wrote to memory of 2112 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\grzejjh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\c0ffc0537b08f2b8e752a75e940c3a004021cb7d18b0511014b28a98273a09a1.exe
"C:\Users\Admin\AppData\Local\Temp\c0ffc0537b08f2b8e752a75e940c3a004021cb7d18b0511014b28a98273a09a1.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {536E9526-578B-4673-97D0-BA253A57BA99} S-1-5-18:NT AUTHORITY\System:Service:
C:\PROGRA~3\Mozilla\grzejjh.exe
C:\PROGRA~3\Mozilla\grzejjh.exe -kaflank
Network
Files
memory/2144-2-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2144-1-0x0000000000280000-0x00000000002DC000-memory.dmp
memory/2144-0-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2144-4-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2144-5-0x0000000000280000-0x00000000002DC000-memory.dmp
C:\PROGRA~3\Mozilla\grzejjh.exe
| MD5 | 8c98d2caf195282645b2792fcbc9a93b |
| SHA1 | 42e5635344d624c1eb8869ee1c1b1db65d180354 |
| SHA256 | ea5373f870aedec9f625afb56cf4e9ea19e3640ca39972d6a2013c5d7a176225 |
| SHA512 | 65195f8b6ac7e07f5f5078e2059da3f275546d1bec7a406583806fa524a2bd15fa6ce0173b2be62fbc1795e4a6f17a673f6edaf29dec31c4eb61503cbc2c3cdd |
memory/2112-8-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2112-9-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2112-10-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2112-12-0x0000000000400000-0x000000000045B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-12 12:29
Reported
2024-11-12 12:32
Platform
win10v2004-20241007-en
Max time kernel
91s
Max time network
137s
Command Line
Signatures
Event Triggered Execution: AppInit DLLs
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\fchgaxm.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\fchgaxm.exe | C:\Users\Admin\AppData\Local\Temp\c0ffc0537b08f2b8e752a75e940c3a004021cb7d18b0511014b28a98273a09a1.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\jwkknvd.dll | C:\PROGRA~3\Mozilla\fchgaxm.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\c0ffc0537b08f2b8e752a75e940c3a004021cb7d18b0511014b28a98273a09a1.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\PROGRA~3\Mozilla\fchgaxm.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\c0ffc0537b08f2b8e752a75e940c3a004021cb7d18b0511014b28a98273a09a1.exe
"C:\Users\Admin\AppData\Local\Temp\c0ffc0537b08f2b8e752a75e940c3a004021cb7d18b0511014b28a98273a09a1.exe"
C:\PROGRA~3\Mozilla\fchgaxm.exe
C:\PROGRA~3\Mozilla\fchgaxm.exe -pjrnomj
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 100.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
Files
memory/4804-0-0x0000000000400000-0x000000000045B000-memory.dmp
memory/4804-1-0x0000000002220000-0x000000000227C000-memory.dmp
memory/4804-2-0x0000000000400000-0x000000000045B000-memory.dmp
C:\ProgramData\Mozilla\fchgaxm.exe
| MD5 | b144eeb8b8e371e94ff3dd855e79be71 |
| SHA1 | 5f02903de34db35201cde6631f0d2586b5118007 |
| SHA256 | c553abee7db1ee698c8b3d660e56dd88e107185060fe6423e16392b942b3206b |
| SHA512 | 97ba3db0cf1e94450e1352b529e8c3be2335d0971ef92ca620f6f5e03a97dfe31b944e86c1e3c32b02125e4c0815fa70767266d72aeb0eb4a34e25faa63c3dfe |
memory/4804-9-0x0000000002220000-0x000000000227C000-memory.dmp
memory/4804-8-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2044-10-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2044-11-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2044-13-0x0000000000400000-0x000000000045B000-memory.dmp