Analysis Overview
SHA256
7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969
Threat Level: Known bad
The file 7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969 was found to be: Known bad.
Malicious Activity Summary
Kutaki
Kutaki Executable
Kutaki family
Executes dropped EXE
Loads dropped DLL
Drops startup file
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Modifies Internet Explorer settings
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-05-24 23:23
Signatures
Kutaki Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Kutaki family
Analysis: behavioral2
Detonation Overview
Submitted
2022-05-24 23:23
Reported
2022-05-24 23:28
Platform
win10v2004-20220414-en
Max time kernel
125s
Max time network
140s
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\adnvdjch.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\adnvdjch.exe | C:\Users\Admin\AppData\Local\Temp\7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\adnvdjch.exe | C:\Users\Admin\AppData\Local\Temp\7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969.exe
"C:\Users\Admin\AppData\Local\Temp\7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969.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\adnvdjch.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\adnvdjch.exe"
Network
| Country | Destination | Domain | Proto |
| US | 93.184.221.240:80 | tcp | |
| US | 8.253.135.241:80 | tcp | |
| US | 20.189.173.12:443 | tcp | |
| NL | 104.110.191.140:80 | tcp | |
| NL | 104.110.191.140:80 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| NL | 104.110.191.140:80 | tcp |
Files
memory/312-132-0x0000000000000000-mapping.dmp
memory/4708-133-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\adnvdjch.exe
| MD5 | 02fb4ae633b32d995eb743f05c809a11 |
| SHA1 | 2a0b7f69b70951de4070efaaa372eba24ba039ef |
| SHA256 | 7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969 |
| SHA512 | 80221e606fc3d0c5b1c508e7d67b8eb999051d554ae60170cdcd8c5d8d912d35e1862c4035896c32eaddd835bb8adb63853bcf1f47731caebf146c7a3b194922 |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\adnvdjch.exe
| MD5 | 02fb4ae633b32d995eb743f05c809a11 |
| SHA1 | 2a0b7f69b70951de4070efaaa372eba24ba039ef |
| SHA256 | 7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969 |
| SHA512 | 80221e606fc3d0c5b1c508e7d67b8eb999051d554ae60170cdcd8c5d8d912d35e1862c4035896c32eaddd835bb8adb63853bcf1f47731caebf146c7a3b194922 |
Analysis: behavioral1
Detonation Overview
Submitted
2022-05-24 23:23
Reported
2022-05-24 23:29
Platform
win7-20220414-en
Max time kernel
149s
Max time network
42s
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\pnejwech.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pnejwech.exe | C:\Users\Admin\AppData\Local\Temp\7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pnejwech.exe | C:\Users\Admin\AppData\Local\Temp\7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969.exe | N/A |
Enumerates physical storage devices
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pnejwech.exe | N/A |
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969.exe
"C:\Users\Admin\AppData\Local\Temp\7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969.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\pnejwech.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pnejwech.exe"
Network
Files
memory/1768-56-0x0000000075C01000-0x0000000075C03000-memory.dmp
memory/1660-57-0x0000000000000000-mapping.dmp
memory/1596-60-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pnejwech.exe
| MD5 | 02fb4ae633b32d995eb743f05c809a11 |
| SHA1 | 2a0b7f69b70951de4070efaaa372eba24ba039ef |
| SHA256 | 7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969 |
| SHA512 | 80221e606fc3d0c5b1c508e7d67b8eb999051d554ae60170cdcd8c5d8d912d35e1862c4035896c32eaddd835bb8adb63853bcf1f47731caebf146c7a3b194922 |
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pnejwech.exe
| MD5 | 02fb4ae633b32d995eb743f05c809a11 |
| SHA1 | 2a0b7f69b70951de4070efaaa372eba24ba039ef |
| SHA256 | 7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969 |
| SHA512 | 80221e606fc3d0c5b1c508e7d67b8eb999051d554ae60170cdcd8c5d8d912d35e1862c4035896c32eaddd835bb8adb63853bcf1f47731caebf146c7a3b194922 |
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pnejwech.exe
| MD5 | 02fb4ae633b32d995eb743f05c809a11 |
| SHA1 | 2a0b7f69b70951de4070efaaa372eba24ba039ef |
| SHA256 | 7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969 |
| SHA512 | 80221e606fc3d0c5b1c508e7d67b8eb999051d554ae60170cdcd8c5d8d912d35e1862c4035896c32eaddd835bb8adb63853bcf1f47731caebf146c7a3b194922 |
memory/1596-65-0x0000000003F31000-0x0000000004DDD000-memory.dmp
memory/1596-66-0x0000000003EE0000-0x0000000003EEB000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pnejwech.exe
| MD5 | 02fb4ae633b32d995eb743f05c809a11 |
| SHA1 | 2a0b7f69b70951de4070efaaa372eba24ba039ef |
| SHA256 | 7e4a52fd3f3714a68347a797a900fe73c4b53ac61d2c685ac180cf8664006969 |
| SHA512 | 80221e606fc3d0c5b1c508e7d67b8eb999051d554ae60170cdcd8c5d8d912d35e1862c4035896c32eaddd835bb8adb63853bcf1f47731caebf146c7a3b194922 |