Analysis Overview
SHA256
039cf530dca66ff431f96f937d88084af001b44ed504ca0458c699a42d89422b
Threat Level: Known bad
The file 75200e77fbdd79b413d51974e55051f1 was found to be: Known bad.
Malicious Activity Summary
Kinsing
Modifies AppInit DLL entries
UPX packed file
Loads dropped DLL
Deletes itself
Executes dropped EXE
Drops file in System32 directory
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-25 17:44
Signatures
UPX packed file
| 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 |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-25 17:44
Reported
2024-01-25 17:47
Platform
win7-20231215-en
Max time kernel
153s
Max time network
133s
Command Line
Signatures
Modifies AppInit DLL entries
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\mpacklk.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | N/A |
UPX packed file
| 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 |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\mpackl.dll | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | N/A |
| File created | C:\Windows\SysWOW64\mpacklk.exe | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\mpacklk.exe | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe
"C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe"
C:\Windows\SysWOW64\mpacklk.exe
C:\Windows\system32\mpacklk.exe ˜‰
C:\Windows\SysWOW64\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe.bat
Network
Files
memory/2100-0-0x0000000000400000-0x000000000040F000-memory.dmp
\Windows\SysWOW64\mpacklk.exe
| MD5 | 75200e77fbdd79b413d51974e55051f1 |
| SHA1 | 7286e784b8e3326a1a632466af3a7155772509c6 |
| SHA256 | 039cf530dca66ff431f96f937d88084af001b44ed504ca0458c699a42d89422b |
| SHA512 | 04efdf17b8a454d27d6ad3147aacf04e8bc27b1f45bc7c789fb4650a13c2ac29b3cd8faded3122752a6e17106735c542523fbbb4ce902237567cbc1cd64aef42 |
memory/2100-4-0x0000000000030000-0x000000000003F000-memory.dmp
memory/2188-11-0x0000000000400000-0x000000000040F000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe.bat
| MD5 | 72553dd9a78803fb32a2bee2af797b0d |
| SHA1 | 598f05111b464b856e4c5e23a6fdacfe456f8d5e |
| SHA256 | f687d0fdff9030790db398e737b1b94082c69243d039a19c8b6923a892a1ce38 |
| SHA512 | d8c3173aaa051a7393c2b200487dc46d26009056bffd9b5adc3937ddd834738b1f8e24c8ac88bddd37991b2b973e0f6eac2adf45483f4020f8b102d014cec43b |
memory/2100-19-0x0000000000400000-0x000000000040F000-memory.dmp
memory/2188-21-0x0000000000400000-0x000000000040F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-25 17:44
Reported
2024-01-25 17:47
Platform
win10v2004-20231222-en
Max time kernel
150s
Max time network
92s
Command Line
Signatures
Kinsing
Modifies AppInit DLL entries
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\mpacklk.exe | N/A |
UPX packed file
| 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 |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\mpackl.dll | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | N/A |
| File created | C:\Windows\SysWOW64\mpacklk.exe | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\mpacklk.exe | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4892 wrote to memory of 4856 | N/A | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | C:\Windows\SysWOW64\mpacklk.exe |
| PID 4892 wrote to memory of 4856 | N/A | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | C:\Windows\SysWOW64\mpacklk.exe |
| PID 4892 wrote to memory of 4856 | N/A | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | C:\Windows\SysWOW64\mpacklk.exe |
| PID 4892 wrote to memory of 2824 | N/A | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4892 wrote to memory of 2824 | N/A | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4892 wrote to memory of 2824 | N/A | C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe
"C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe"
C:\Windows\SysWOW64\mpacklk.exe
C:\Windows\system32\mpacklk.exe ˜‰
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe.bat
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
Files
memory/4892-0-0x0000000000400000-0x000000000040F000-memory.dmp
C:\Windows\SysWOW64\mpacklk.exe
| MD5 | 75200e77fbdd79b413d51974e55051f1 |
| SHA1 | 7286e784b8e3326a1a632466af3a7155772509c6 |
| SHA256 | 039cf530dca66ff431f96f937d88084af001b44ed504ca0458c699a42d89422b |
| SHA512 | 04efdf17b8a454d27d6ad3147aacf04e8bc27b1f45bc7c789fb4650a13c2ac29b3cd8faded3122752a6e17106735c542523fbbb4ce902237567cbc1cd64aef42 |
memory/4892-8-0x0000000000400000-0x000000000040F000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\75200e77fbdd79b413d51974e55051f1.exe.bat
| MD5 | 72553dd9a78803fb32a2bee2af797b0d |
| SHA1 | 598f05111b464b856e4c5e23a6fdacfe456f8d5e |
| SHA256 | f687d0fdff9030790db398e737b1b94082c69243d039a19c8b6923a892a1ce38 |
| SHA512 | d8c3173aaa051a7393c2b200487dc46d26009056bffd9b5adc3937ddd834738b1f8e24c8ac88bddd37991b2b973e0f6eac2adf45483f4020f8b102d014cec43b |
memory/4856-10-0x0000000000400000-0x000000000040F000-memory.dmp