Analysis Overview
SHA256
573ac149e809e977341a1e5d84c1e3dc0166b5f1b92c6962349fda3446085faf
Threat Level: Known bad
The file 573ac149e809e977341a1e5d84c1e3dc0166b5f1b92c6962349fda3446085faf was found to be: Known bad.
Malicious Activity Summary
Detects executables packed with ASPack
Detects executables packed with ASPack
Event Triggered Execution: AppInit DLLs
ASPack v2.12-2.42
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
2024-06-22 22:23
Signatures
Detects executables packed with ASPack
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
ASPack v2.12-2.42
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-22 22:23
Reported
2024-06-22 22:25
Platform
win7-20240611-en
Max time kernel
117s
Max time network
117s
Command Line
Signatures
Detects executables packed with ASPack
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Event Triggered Execution: AppInit DLLs
ASPack v2.12-2.42
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\arjskvg.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\arjskvg.exe | C:\Users\Admin\AppData\Local\Temp\573ac149e809e977341a1e5d84c1e3dc0166b5f1b92c6962349fda3446085faf.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\eekvruj.dll | C:\PROGRA~3\Mozilla\arjskvg.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\573ac149e809e977341a1e5d84c1e3dc0166b5f1b92c6962349fda3446085faf.exe | N/A |
| N/A | N/A | C:\PROGRA~3\Mozilla\arjskvg.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1680 wrote to memory of 2620 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\arjskvg.exe |
| PID 1680 wrote to memory of 2620 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\arjskvg.exe |
| PID 1680 wrote to memory of 2620 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\arjskvg.exe |
| PID 1680 wrote to memory of 2620 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\arjskvg.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\573ac149e809e977341a1e5d84c1e3dc0166b5f1b92c6962349fda3446085faf.exe
"C:\Users\Admin\AppData\Local\Temp\573ac149e809e977341a1e5d84c1e3dc0166b5f1b92c6962349fda3446085faf.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {F4B1DFC3-6ABE-4F6F-88B7-58E87E947B16} S-1-5-18:NT AUTHORITY\System:Service:
C:\PROGRA~3\Mozilla\arjskvg.exe
C:\PROGRA~3\Mozilla\arjskvg.exe -plisyaa
Network
Files
memory/948-0-0x0000000000400000-0x0000000000469000-memory.dmp
memory/948-3-0x00000000002F0000-0x000000000034C000-memory.dmp
memory/948-2-0x0000000000400000-0x000000000045B000-memory.dmp
memory/948-1-0x0000000000400000-0x0000000000469000-memory.dmp
memory/948-5-0x0000000000400000-0x000000000045B000-memory.dmp
C:\PROGRA~3\Mozilla\arjskvg.exe
| MD5 | 36ffd1d87e7f46bf0614e309fd974cda |
| SHA1 | b22ea8585b23d13c972ac8cc629546256484a252 |
| SHA256 | a706d3a6c277a60575fac18565721d063484cad6c447f9efa73e06b0ea247704 |
| SHA512 | 0b46d6b5075eb6c71314cea32d8302dad63a22e69b200a2c5ca59a69bb516ad04877a9621a5657cc4ae1b3a95a67345785a16799184de41dee98d32191255d48 |
memory/2620-8-0x0000000000400000-0x0000000000469000-memory.dmp
memory/2620-9-0x0000000000400000-0x0000000000469000-memory.dmp
memory/2620-10-0x0000000000400000-0x0000000000469000-memory.dmp
memory/2620-11-0x0000000000390000-0x00000000003EC000-memory.dmp
memory/2620-12-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2620-14-0x0000000000400000-0x000000000045B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-22 22:23
Reported
2024-06-22 22:26
Platform
win10v2004-20240508-en
Max time kernel
148s
Max time network
151s
Command Line
Signatures
Detects executables packed with ASPack
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Event Triggered Execution: AppInit DLLs
ASPack v2.12-2.42
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\ykjyebb.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\ykjyebb.exe | C:\Users\Admin\AppData\Local\Temp\573ac149e809e977341a1e5d84c1e3dc0166b5f1b92c6962349fda3446085faf.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\pjitnjk.dll | C:\PROGRA~3\Mozilla\ykjyebb.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\573ac149e809e977341a1e5d84c1e3dc0166b5f1b92c6962349fda3446085faf.exe
"C:\Users\Admin\AppData\Local\Temp\573ac149e809e977341a1e5d84c1e3dc0166b5f1b92c6962349fda3446085faf.exe"
C:\PROGRA~3\Mozilla\ykjyebb.exe
C:\PROGRA~3\Mozilla\ykjyebb.exe -aryugnm
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 92.12.20.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.173.189.20.in-addr.arpa | udp |
Files
memory/412-0-0x0000000000400000-0x0000000000469000-memory.dmp
memory/412-1-0x0000000000400000-0x0000000000469000-memory.dmp
memory/412-2-0x0000000000442000-0x0000000000443000-memory.dmp
memory/412-3-0x0000000000400000-0x0000000000469000-memory.dmp
memory/412-4-0x0000000000400000-0x0000000000469000-memory.dmp
C:\ProgramData\Mozilla\ykjyebb.exe
| MD5 | e9517b37ce4fc879a56572074c9e3974 |
| SHA1 | 2e6e9ed7742e89f05dee9abae9f95368862f5f97 |
| SHA256 | 6c30e2424a84f4dabbe9da5be2d4385af874357e1ed1c853b40eea66dca7d4a2 |
| SHA512 | a3763089c9c695ede11a42aaa7a8d27984e9052977fe7e3b3c332cd5c190b0f399a6d1677bcb3008b824f19c61bb71fe64de96a45361f517ecbc80a003102c55 |
memory/412-11-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2176-9-0x0000000000400000-0x0000000000469000-memory.dmp
memory/2176-12-0x0000000000400000-0x0000000000469000-memory.dmp
memory/2176-13-0x0000000000400000-0x0000000000469000-memory.dmp
memory/2176-14-0x0000000000400000-0x0000000000469000-memory.dmp
memory/2176-17-0x0000000000400000-0x000000000045B000-memory.dmp