Analysis Overview
SHA256
db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841
Threat Level: Known bad
The file db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841 was found to be: Known bad.
Malicious Activity Summary
Kutaki
Kutaki family
Kutaki Executable
Executes dropped EXE
Loads dropped DLL
Drops startup file
Maps connected drives based on registry
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-07-01 03:49
Signatures
Kutaki Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Kutaki family
Analysis: behavioral1
Detonation Overview
Submitted
2022-07-01 03:49
Reported
2022-07-01 04:30
Platform
win7-20220414-en
Max time kernel
142s
Max time network
44s
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zeqtnwch.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zeqtnwch.exe | C:\Users\Admin\AppData\Local\Temp\db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zeqtnwch.exe | C:\Users\Admin\AppData\Local\Temp\db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe
"C:\Users\Admin\AppData\Local\Temp\db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.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\zeqtnwch.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zeqtnwch.exe"
Network
Files
memory/948-56-0x0000000074F21000-0x0000000074F23000-memory.dmp
memory/1028-57-0x0000000000000000-mapping.dmp
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zeqtnwch.exe
| MD5 | a20059fdc62668a1bc68d5f1691b33de |
| SHA1 | 6f86fab1c3f5897c46e7a8a9386214c1dd3be4da |
| SHA256 | db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841 |
| SHA512 | 5a882b4b51ee7bb9e3afd7033004391f9d71e82775da0034eb44cdaf1df1b6061a379a854d20576f3010d266f6475607fd29550825f1bd110698b5d525b986cb |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zeqtnwch.exe
| MD5 | a20059fdc62668a1bc68d5f1691b33de |
| SHA1 | 6f86fab1c3f5897c46e7a8a9386214c1dd3be4da |
| SHA256 | db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841 |
| SHA512 | 5a882b4b51ee7bb9e3afd7033004391f9d71e82775da0034eb44cdaf1df1b6061a379a854d20576f3010d266f6475607fd29550825f1bd110698b5d525b986cb |
memory/980-60-0x0000000000000000-mapping.dmp
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zeqtnwch.exe
| MD5 | a20059fdc62668a1bc68d5f1691b33de |
| SHA1 | 6f86fab1c3f5897c46e7a8a9386214c1dd3be4da |
| SHA256 | db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841 |
| SHA512 | 5a882b4b51ee7bb9e3afd7033004391f9d71e82775da0034eb44cdaf1df1b6061a379a854d20576f3010d266f6475607fd29550825f1bd110698b5d525b986cb |
Analysis: behavioral2
Detonation Overview
Submitted
2022-07-01 03:49
Reported
2022-07-01 04:30
Platform
win10v2004-20220414-en
Max time kernel
153s
Max time network
161s
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\femsfach.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\femsfach.exe | C:\Users\Admin\AppData\Local\Temp\db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\femsfach.exe | C:\Users\Admin\AppData\Local\Temp\db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.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\femsfach.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\femsfach.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe
"C:\Users\Admin\AppData\Local\Temp\db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.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\femsfach.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\femsfach.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 104.110.191.140:80 | tcp | |
| NL | 104.110.191.133:80 | tcp | |
| US | 20.42.72.131:443 | tcp | |
| US | 40.125.122.151:443 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| US | 8.8.8.8:53 | 164.2.77.40.in-addr.arpa | udp |
| NL | 104.110.191.140:80 | tcp | |
| US | 8.8.8.8:53 | f.7.6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.0.0.0.0.3.0.1.3.0.6.2.ip6.arpa | udp |
Files
memory/5052-132-0x0000000000000000-mapping.dmp
memory/1600-133-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\femsfach.exe
| MD5 | a20059fdc62668a1bc68d5f1691b33de |
| SHA1 | 6f86fab1c3f5897c46e7a8a9386214c1dd3be4da |
| SHA256 | db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841 |
| SHA512 | 5a882b4b51ee7bb9e3afd7033004391f9d71e82775da0034eb44cdaf1df1b6061a379a854d20576f3010d266f6475607fd29550825f1bd110698b5d525b986cb |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\femsfach.exe
| MD5 | a20059fdc62668a1bc68d5f1691b33de |
| SHA1 | 6f86fab1c3f5897c46e7a8a9386214c1dd3be4da |
| SHA256 | db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841 |
| SHA512 | 5a882b4b51ee7bb9e3afd7033004391f9d71e82775da0034eb44cdaf1df1b6061a379a854d20576f3010d266f6475607fd29550825f1bd110698b5d525b986cb |