Analysis Overview
SHA256
18d7281ad2a66b5f602ad32450e346b8baa3b8b07f7825192f46b280abf07e91
Threat Level: Likely malicious
The file 18d7281ad2a66b5f602ad32450e346b8baa3b8b07f7825192f46b280abf07e91N 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
2024-11-09 22:48
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-09 22:48
Reported
2024-11-09 22:50
Platform
win7-20240708-en
Max time kernel
117s
Max time network
117s
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\18d7281ad2a66b5f602ad32450e346b8baa3b8b07f7825192f46b280abf07e91N.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\18d7281ad2a66b5f602ad32450e346b8baa3b8b07f7825192f46b280abf07e91N.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\18d7281ad2a66b5f602ad32450e346b8baa3b8b07f7825192f46b280abf07e91N.exe | N/A |
| N/A | N/A | C:\PROGRA~3\Mozilla\yofzeuh.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2032 wrote to memory of 2484 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\yofzeuh.exe |
| PID 2032 wrote to memory of 2484 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\yofzeuh.exe |
| PID 2032 wrote to memory of 2484 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\yofzeuh.exe |
| PID 2032 wrote to memory of 2484 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\yofzeuh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\18d7281ad2a66b5f602ad32450e346b8baa3b8b07f7825192f46b280abf07e91N.exe
"C:\Users\Admin\AppData\Local\Temp\18d7281ad2a66b5f602ad32450e346b8baa3b8b07f7825192f46b280abf07e91N.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {A3B7E8FA-A069-41D3-9136-1C437787DD6A} S-1-5-18:NT AUTHORITY\System:Service:
C:\PROGRA~3\Mozilla\yofzeuh.exe
C:\PROGRA~3\Mozilla\yofzeuh.exe -qmgjyzc
Network
Files
memory/2640-0-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2640-1-0x0000000000460000-0x00000000004BC000-memory.dmp
memory/2640-2-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2640-4-0x0000000000400000-0x000000000045B000-memory.dmp
C:\PROGRA~3\Mozilla\yofzeuh.exe
| MD5 | 939c2fda42b93abb2a68a5a2d0f60f2d |
| SHA1 | ccbce1eb5b7748bac6a53a4509ed333d67c9f73b |
| SHA256 | 22b32af6fdda8a49d6b4d660780505dbefe524bfc1017498335c41c0d0b8d27b |
| SHA512 | 3d354412dc2d255f8691bb0df50b9d89b8cbc50e0df6dd8be58ddbd09107ce97e8497ac8914be8741a6630063ed487e46269549bb15805a0512ce2c9c6a72b65 |
memory/2484-7-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2484-8-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2484-10-0x0000000000400000-0x000000000045B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-09 22:48
Reported
2024-11-09 22:51
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
96s
Command Line
Signatures
Event Triggered Execution: AppInit DLLs
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\cwelzlb.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\cwelzlb.exe | C:\Users\Admin\AppData\Local\Temp\18d7281ad2a66b5f602ad32450e346b8baa3b8b07f7825192f46b280abf07e91N.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\ftyifzg.dll | C:\PROGRA~3\Mozilla\cwelzlb.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\18d7281ad2a66b5f602ad32450e346b8baa3b8b07f7825192f46b280abf07e91N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\PROGRA~3\Mozilla\cwelzlb.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\18d7281ad2a66b5f602ad32450e346b8baa3b8b07f7825192f46b280abf07e91N.exe
"C:\Users\Admin\AppData\Local\Temp\18d7281ad2a66b5f602ad32450e346b8baa3b8b07f7825192f46b280abf07e91N.exe"
C:\PROGRA~3\Mozilla\cwelzlb.exe
C:\PROGRA~3\Mozilla\cwelzlb.exe -voeftbj
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 100.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
Files
memory/2332-0-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2332-1-0x0000000000560000-0x00000000005BC000-memory.dmp
memory/2332-2-0x0000000000400000-0x000000000045B000-memory.dmp
C:\ProgramData\Mozilla\cwelzlb.exe
| MD5 | 61ca6ddfa059c2972cf67b69bb123735 |
| SHA1 | c7df778dd1307298b54115601903b9a08dfea763 |
| SHA256 | 8bed7e08432f52a24852e7a6bfc8f1dc6e8ce1c8bbd098579a8e018110eaf38e |
| SHA512 | ec63292d7871c8a531508a5a944d281e7221f0b975f8f2327b8059bab3d00a6e8fd51a374113d86acee0ab740c8f0f9e2dc0f331646a11df818f41ab33d3202d |
memory/2332-6-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2332-8-0x0000000000560000-0x00000000005BC000-memory.dmp
memory/436-9-0x0000000000400000-0x000000000045B000-memory.dmp
memory/436-10-0x0000000000400000-0x000000000045B000-memory.dmp
memory/436-12-0x0000000000400000-0x000000000045B000-memory.dmp