Analysis Overview
SHA256
a053a799541f89b909a2022966ae19839f02f60fd710beb12e65818cde9768eb
Threat Level: Likely malicious
The file a053a799541f89b909a2022966ae19839f02f60fd710beb12e65818cde9768eb 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 UnmapMainImage
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-06 23:52
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-06 23:52
Reported
2024-04-06 23:54
Platform
win7-20240221-en
Max time kernel
117s
Max time network
119s
Command Line
Signatures
Modifies AppInit DLL entries
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\gjsfhjk.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\eurgebe.dll | C:\PROGRA~3\Mozilla\gjsfhjk.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\gjsfhjk.exe | C:\Users\Admin\AppData\Local\Temp\a053a799541f89b909a2022966ae19839f02f60fd710beb12e65818cde9768eb.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a053a799541f89b909a2022966ae19839f02f60fd710beb12e65818cde9768eb.exe | N/A |
| N/A | N/A | C:\PROGRA~3\Mozilla\gjsfhjk.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2780 wrote to memory of 2936 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\gjsfhjk.exe |
| PID 2780 wrote to memory of 2936 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\gjsfhjk.exe |
| PID 2780 wrote to memory of 2936 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\gjsfhjk.exe |
| PID 2780 wrote to memory of 2936 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\gjsfhjk.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a053a799541f89b909a2022966ae19839f02f60fd710beb12e65818cde9768eb.exe
"C:\Users\Admin\AppData\Local\Temp\a053a799541f89b909a2022966ae19839f02f60fd710beb12e65818cde9768eb.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {40FC6E66-4234-49E1-A967-5E3421640F30} S-1-5-18:NT AUTHORITY\System:Service:
C:\PROGRA~3\Mozilla\gjsfhjk.exe
C:\PROGRA~3\Mozilla\gjsfhjk.exe -tuxiydl
Network
Files
memory/1688-0-0x0000000000400000-0x000000000045E000-memory.dmp
memory/1688-2-0x0000000000400000-0x000000000045B000-memory.dmp
memory/1688-1-0x00000000002F0000-0x000000000034B000-memory.dmp
memory/1688-4-0x0000000000400000-0x000000000045B000-memory.dmp
C:\PROGRA~3\Mozilla\gjsfhjk.exe
| MD5 | 12a68002e48e9976af8da57f0ec994f7 |
| SHA1 | d42b3d1fd1d223c9a2f93a9653afc794feba2a9b |
| SHA256 | ab6b8379c8dfd0a4b74a3bcaa57226cb44efca784a5dd2bf30d27d9f442b955c |
| SHA512 | 67f6816f0fc2f8726b466336fb719c28269f718f3b358b5fbe46e5361209f8742f6bdfcf21670f573436152e8f9116969016f4d1d8b38d6ad066d561f14b74e0 |
memory/2936-7-0x00000000008B0000-0x000000000090B000-memory.dmp
memory/2936-8-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2936-10-0x0000000000400000-0x000000000045B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-06 23:52
Reported
2024-04-06 23:55
Platform
win10v2004-20240226-en
Max time kernel
147s
Max time network
155s
Command Line
Signatures
Modifies AppInit DLL entries
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\fwjctpb.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\fwjctpb.exe | C:\Users\Admin\AppData\Local\Temp\a053a799541f89b909a2022966ae19839f02f60fd710beb12e65818cde9768eb.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\jqvifpn.dll | C:\PROGRA~3\Mozilla\fwjctpb.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\a053a799541f89b909a2022966ae19839f02f60fd710beb12e65818cde9768eb.exe
"C:\Users\Admin\AppData\Local\Temp\a053a799541f89b909a2022966ae19839f02f60fd710beb12e65818cde9768eb.exe"
C:\PROGRA~3\Mozilla\fwjctpb.exe
C:\PROGRA~3\Mozilla\fwjctpb.exe -qdcpmcc
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.143.182.52.in-addr.arpa | udp |
Files
memory/1712-0-0x0000000000400000-0x000000000045E000-memory.dmp
memory/1712-1-0x00000000021E0000-0x000000000223B000-memory.dmp
memory/1712-2-0x0000000000400000-0x000000000045B000-memory.dmp
C:\ProgramData\Mozilla\fwjctpb.exe
| MD5 | 49470fa600494bf44036deca7621809d |
| SHA1 | d0e530505982472748d9c68a646e1b04b2c823aa |
| SHA256 | 42b8550a654e4c707fa5888e949be1ffde5508e3656d4b6bffb02063b970b92d |
| SHA512 | abca28a0b1876e4b3855a93f560cb6bbec5f9bd3c19309806ef8fe1812fe3617b3ec0066920595c70355d56e54c3b3d38013d262b5412e24ec3cf8d66daef490 |
memory/1712-6-0x0000000000400000-0x000000000045B000-memory.dmp
memory/1712-8-0x00000000021E0000-0x000000000223B000-memory.dmp
memory/3020-9-0x0000000000C30000-0x0000000000C8B000-memory.dmp
memory/3020-10-0x0000000000400000-0x000000000045B000-memory.dmp
memory/3020-12-0x0000000000400000-0x000000000045B000-memory.dmp