Analysis Overview
SHA256
863e68ee97793245525d813e5a7ec9d234c90bd8741152a4f491ec6debf71ef6
Threat Level: Likely malicious
The file 863e68ee97793245525d813e5a7ec9d234c90bd8741152a4f491ec6debf71ef6 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
Suspicious use of UnmapMainImage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-07 22:58
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-07 22:58
Reported
2024-04-07 23:01
Platform
win7-20240221-en
Max time kernel
118s
Max time network
122s
Command Line
Signatures
Modifies AppInit DLL entries
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\tbckyxk.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\tbckyxk.exe | C:\Users\Admin\AppData\Local\Temp\863e68ee97793245525d813e5a7ec9d234c90bd8741152a4f491ec6debf71ef6.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\newtrln.dll | C:\PROGRA~3\Mozilla\tbckyxk.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\863e68ee97793245525d813e5a7ec9d234c90bd8741152a4f491ec6debf71ef6.exe | N/A |
| N/A | N/A | C:\PROGRA~3\Mozilla\tbckyxk.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2280 wrote to memory of 2316 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\tbckyxk.exe |
| PID 2280 wrote to memory of 2316 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\tbckyxk.exe |
| PID 2280 wrote to memory of 2316 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\tbckyxk.exe |
| PID 2280 wrote to memory of 2316 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\tbckyxk.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\863e68ee97793245525d813e5a7ec9d234c90bd8741152a4f491ec6debf71ef6.exe
"C:\Users\Admin\AppData\Local\Temp\863e68ee97793245525d813e5a7ec9d234c90bd8741152a4f491ec6debf71ef6.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {0028E4F9-BCC1-462D-AE0A-D47822BA3EB8} S-1-5-18:NT AUTHORITY\System:Service:
C:\PROGRA~3\Mozilla\tbckyxk.exe
C:\PROGRA~3\Mozilla\tbckyxk.exe -gqpcbye
Network
Files
memory/1100-0-0x0000000000400000-0x000000000045E000-memory.dmp
memory/1100-1-0x0000000000460000-0x00000000004BB000-memory.dmp
memory/1100-2-0x0000000000400000-0x000000000045B000-memory.dmp
memory/1100-4-0x0000000000400000-0x000000000045B000-memory.dmp
C:\PROGRA~3\Mozilla\tbckyxk.exe
| MD5 | 0d56e869af4ff1b3d8b712663c1f7638 |
| SHA1 | 08ff4909356bc6d647d1b13c81478e3fb535060b |
| SHA256 | 1bbbf0a4e5b5899683c5d7b1792e64deecef2d5e16e0f2e381f9a0aee8462e59 |
| SHA512 | 07146ddff621845cde6b77951d8ba9f53e3ee7b7f8c826517aacca92e43034133c8c20c8c2580b92a9cac69609f54e05e146481e2eecefc466c5cc17cff1c126 |
memory/2316-7-0x0000000000400000-0x000000000045E000-memory.dmp
memory/2316-8-0x0000000000460000-0x00000000004BB000-memory.dmp
memory/2316-9-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2316-11-0x0000000000400000-0x000000000045B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-07 22:58
Reported
2024-04-07 23:01
Platform
win10v2004-20240226-en
Max time kernel
146s
Max time network
157s
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\863e68ee97793245525d813e5a7ec9d234c90bd8741152a4f491ec6debf71ef6.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\863e68ee97793245525d813e5a7ec9d234c90bd8741152a4f491ec6debf71ef6.exe
"C:\Users\Admin\AppData\Local\Temp\863e68ee97793245525d813e5a7ec9d234c90bd8741152a4f491ec6debf71ef6.exe"
C:\PROGRA~3\Mozilla\fwjctpb.exe
C:\PROGRA~3\Mozilla\fwjctpb.exe -qdcpmcc
Network
| Country | Destination | Domain | Proto |
| GB | 96.16.110.114:80 | tcp | |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 130.118.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 36.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 168.117.168.52.in-addr.arpa | udp |
Files
memory/4092-0-0x0000000000400000-0x000000000045E000-memory.dmp
memory/4092-1-0x0000000002200000-0x000000000225B000-memory.dmp
memory/4092-2-0x0000000000400000-0x000000000045B000-memory.dmp
C:\ProgramData\Mozilla\fwjctpb.exe
| MD5 | 395a32f4cb15fbd9dd8bb9efe08b7bee |
| SHA1 | d3463e43125fbc3c65381ba877a26c3c88c430dc |
| SHA256 | 3bfca4f5a3d0a219bf55ae37a4fc9668eb3894244f9080ff73912d9dde727f0d |
| SHA512 | 525ddd9df4db173008bc781563cecc509e6f4482754cdc9d481b86241f8519a6063410becb45c7dfda1691f2e1bbf00bbfc86bbcbf3180d981c89e409c335c7f |
memory/4092-5-0x0000000000400000-0x000000000045B000-memory.dmp
memory/4092-7-0x0000000002200000-0x000000000225B000-memory.dmp
memory/216-9-0x0000000000D60000-0x0000000000DBB000-memory.dmp
memory/216-10-0x0000000000400000-0x000000000045B000-memory.dmp
memory/216-12-0x0000000000400000-0x000000000045B000-memory.dmp