Analysis Overview
SHA256
5656c83c7d8cf3e80122d9bf2417f4c6089f14f8db2d12f9c64f7293784b1d59
Threat Level: Known bad
The file 5656c83c7d8cf3e80122d9bf2417f4c6089f14f8db2d12f9c64f7293784b1d59 was found to be: Known bad.
Malicious Activity Summary
Kutaki Executable
Kutaki
Kutaki family
Executes dropped EXE
Loads dropped DLL
Drops startup file
Maps connected drives based on registry
Enumerates physical storage devices
Modifies Internet Explorer settings
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-07-25 04:01
Signatures
Kutaki Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Kutaki family
Analysis: behavioral1
Detonation Overview
Submitted
2022-07-25 04:01
Reported
2022-07-25 04:04
Platform
win7-20220718-en
Max time kernel
154s
Max time network
47s
Command Line
Signatures
Kutaki
Kutaki Executable
| 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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | N/A |
Maps connected drives based on registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
Enumerates physical storage devices
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Internet Explorer\Main | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe
"C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe"
Network
Files
memory/1764-56-0x00000000757E1000-0x00000000757E3000-memory.dmp
memory/1660-57-0x0000000000000000-mapping.dmp
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe
| MD5 | 7d9d24216b329d14d4dd428a23070f29 |
| SHA1 | 636d97af3f64ad9efe07c5b820e7afddbbf89f74 |
| SHA256 | 998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b |
| SHA512 | 4af9920e7a8d73457702c6ab7b27eb20bd42d4ccc18d8e5c2014e319584894f263d613a72d3de3a44a811a60dfa1bbb10371bc3ffce28d2ac22978fc23f06e53 |
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe
| MD5 | 7d9d24216b329d14d4dd428a23070f29 |
| SHA1 | 636d97af3f64ad9efe07c5b820e7afddbbf89f74 |
| SHA256 | 998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b |
| SHA512 | 4af9920e7a8d73457702c6ab7b27eb20bd42d4ccc18d8e5c2014e319584894f263d613a72d3de3a44a811a60dfa1bbb10371bc3ffce28d2ac22978fc23f06e53 |
memory/1664-60-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe
| MD5 | 7d9d24216b329d14d4dd428a23070f29 |
| SHA1 | 636d97af3f64ad9efe07c5b820e7afddbbf89f74 |
| SHA256 | 998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b |
| SHA512 | 4af9920e7a8d73457702c6ab7b27eb20bd42d4ccc18d8e5c2014e319584894f263d613a72d3de3a44a811a60dfa1bbb10371bc3ffce28d2ac22978fc23f06e53 |
memory/1664-65-0x00000000040C1000-0x0000000004F6D000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe
| MD5 | 7d9d24216b329d14d4dd428a23070f29 |
| SHA1 | 636d97af3f64ad9efe07c5b820e7afddbbf89f74 |
| SHA256 | 998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b |
| SHA512 | 4af9920e7a8d73457702c6ab7b27eb20bd42d4ccc18d8e5c2014e319584894f263d613a72d3de3a44a811a60dfa1bbb10371bc3ffce28d2ac22978fc23f06e53 |
Analysis: behavioral2
Detonation Overview
Submitted
2022-07-25 04:01
Reported
2022-07-25 04:04
Platform
win10v2004-20220721-en
Max time kernel
149s
Max time network
145s
Command Line
Signatures
Kutaki
Kutaki Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | N/A |
Maps connected drives based on registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3360 wrote to memory of 3596 | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3360 wrote to memory of 3596 | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3360 wrote to memory of 3596 | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3360 wrote to memory of 2436 | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe |
| PID 3360 wrote to memory of 2436 | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe |
| PID 3360 wrote to memory of 2436 | N/A | C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe
"C:\Users\Admin\AppData\Local\Temp\Tax Payment Challan.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 40.126.32.136:443 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| US | 52.182.141.63:443 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| FR | 2.18.109.224:443 | tcp |
Files
memory/3596-132-0x0000000000000000-mapping.dmp
memory/2436-133-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe
| MD5 | 7d9d24216b329d14d4dd428a23070f29 |
| SHA1 | 636d97af3f64ad9efe07c5b820e7afddbbf89f74 |
| SHA256 | 998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b |
| SHA512 | 4af9920e7a8d73457702c6ab7b27eb20bd42d4ccc18d8e5c2014e319584894f263d613a72d3de3a44a811a60dfa1bbb10371bc3ffce28d2ac22978fc23f06e53 |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe
| MD5 | 7d9d24216b329d14d4dd428a23070f29 |
| SHA1 | 636d97af3f64ad9efe07c5b820e7afddbbf89f74 |
| SHA256 | 998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b |
| SHA512 | 4af9920e7a8d73457702c6ab7b27eb20bd42d4ccc18d8e5c2014e319584894f263d613a72d3de3a44a811a60dfa1bbb10371bc3ffce28d2ac22978fc23f06e53 |