Analysis Overview
SHA256
6a3f3d12317a00d68cdd147169dcac20644e9b0fec3252efc0cb9f0fc02e4a51
Threat Level: Likely malicious
The file 6a3f3d12317a00d68cdd147169dcac20644e9b0fec3252efc0cb9f0fc02e4a51 was found to be: Likely malicious.
Malicious Activity Summary
Modifies AppInit DLL entries
Executes dropped EXE
Drops file in Program Files directory
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-06 21:57
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-06 21:57
Reported
2024-04-06 22:00
Platform
win7-20240221-en
Max time kernel
122s
Max time network
136s
Command Line
Signatures
Modifies AppInit DLL entries
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\ujnwrxk.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\ujnwrxk.exe | C:\Users\Admin\AppData\Local\Temp\6a3f3d12317a00d68cdd147169dcac20644e9b0fec3252efc0cb9f0fc02e4a51.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\klvnttl.dll | C:\PROGRA~3\Mozilla\ujnwrxk.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2856 wrote to memory of 1640 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\ujnwrxk.exe |
| PID 2856 wrote to memory of 1640 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\ujnwrxk.exe |
| PID 2856 wrote to memory of 1640 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\ujnwrxk.exe |
| PID 2856 wrote to memory of 1640 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\ujnwrxk.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\6a3f3d12317a00d68cdd147169dcac20644e9b0fec3252efc0cb9f0fc02e4a51.exe
"C:\Users\Admin\AppData\Local\Temp\6a3f3d12317a00d68cdd147169dcac20644e9b0fec3252efc0cb9f0fc02e4a51.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {67F95082-B5F0-4313-8350-61E5D3277E9C} S-1-5-18:NT AUTHORITY\System:Service:
C:\PROGRA~3\Mozilla\ujnwrxk.exe
C:\PROGRA~3\Mozilla\ujnwrxk.exe -eagoxym
Network
Files
memory/1968-0-0x0000000000400000-0x0000000000422000-memory.dmp
memory/1968-1-0x00000000002F0000-0x000000000034B000-memory.dmp
memory/1968-7-0x0000000000400000-0x0000000000422000-memory.dmp
C:\PROGRA~3\Mozilla\ujnwrxk.exe
| MD5 | 92bcb0fc24124dc7fbd340c4c4562c28 |
| SHA1 | 7115d8a8f611d0a8e792f29ad7c39471c2b2678a |
| SHA256 | f792d0038de8f5549d215dbd5ceb70cae01b24119fc7e0c83d2bd9d08b37073f |
| SHA512 | b5c645f2dd0f0d7e04132f2854b0d9c5522d97d67267374288023c68200b5f440d32589b06a96d919bba32c87edc0f3d602aec5fd7b6d6bfd0e757750ef2b290 |
memory/1640-14-0x0000000000400000-0x0000000000422000-memory.dmp
memory/1640-15-0x00000000001E0000-0x000000000023B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-06 21:57
Reported
2024-04-06 21:59
Platform
win10v2004-20240226-en
Max time kernel
147s
Max time network
152s
Command Line
Signatures
Modifies AppInit DLL entries
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\zonasdl.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\zonasdl.exe | C:\Users\Admin\AppData\Local\Temp\6a3f3d12317a00d68cdd147169dcac20644e9b0fec3252efc0cb9f0fc02e4a51.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\eggeazi.dll | C:\PROGRA~3\Mozilla\zonasdl.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\6a3f3d12317a00d68cdd147169dcac20644e9b0fec3252efc0cb9f0fc02e4a51.exe
"C:\Users\Admin\AppData\Local\Temp\6a3f3d12317a00d68cdd147169dcac20644e9b0fec3252efc0cb9f0fc02e4a51.exe"
C:\PROGRA~3\Mozilla\zonasdl.exe
C:\PROGRA~3\Mozilla\zonasdl.exe -ufdnlxl
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 18.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 150.1.37.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.171.91.138.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 7.173.189.20.in-addr.arpa | udp |
Files
memory/1020-0-0x0000000000400000-0x0000000000422000-memory.dmp
memory/1020-1-0x0000000000710000-0x000000000076B000-memory.dmp
C:\ProgramData\Mozilla\zonasdl.exe
| MD5 | 960ddb8f6100104855adcef9abacb781 |
| SHA1 | 41a9eff6f6bd86b24828c4fd5a730270bd47561f |
| SHA256 | 3eb233bd32a7817ce546b3e7fa4914298cc93c3dd9795d2f8a6907c97b4ff1d0 |
| SHA512 | 8933a3f51e4717c4e5377ac8eef5388d63497e07ae1a5eb07eb3638ac1e5a01913836a81d476207b7fb1ca820698e48167b14a7bd4662e9f3ca0f97e6bc6144e |
memory/4040-9-0x0000000000400000-0x0000000000422000-memory.dmp
memory/1020-10-0x0000000000400000-0x0000000000422000-memory.dmp
memory/4040-11-0x0000000000B70000-0x0000000000BCB000-memory.dmp
memory/4040-17-0x0000000000400000-0x0000000000422000-memory.dmp