Analysis
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max time kernel
142s -
max time network
44s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
01-07-2022 03:49
Static task
static1
Behavioral task
behavioral1
Sample
db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe
Resource
win7-20220414-en
General
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Target
db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe
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Size
732KB
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MD5
a20059fdc62668a1bc68d5f1691b33de
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SHA1
6f86fab1c3f5897c46e7a8a9386214c1dd3be4da
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SHA256
db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841
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SHA512
5a882b4b51ee7bb9e3afd7033004391f9d71e82775da0034eb44cdaf1df1b6061a379a854d20576f3010d266f6475607fd29550825f1bd110698b5d525b986cb
Malware Config
Signatures
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Kutaki Executable 3 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zeqtnwch.exe family_kutaki C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zeqtnwch.exe family_kutaki \Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zeqtnwch.exe family_kutaki -
Executes dropped EXE 1 IoCs
Processes:
zeqtnwch.exepid process 980 zeqtnwch.exe -
Drops startup file 2 IoCs
Processes:
db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zeqtnwch.exe db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zeqtnwch.exe db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe -
Loads dropped DLL 2 IoCs
Processes:
db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exepid process 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exezeqtnwch.exepid process 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe 980 zeqtnwch.exe 980 zeqtnwch.exe 980 zeqtnwch.exe 980 zeqtnwch.exe 980 zeqtnwch.exe 980 zeqtnwch.exe 980 zeqtnwch.exe 980 zeqtnwch.exe 980 zeqtnwch.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exedescription pid process target process PID 948 wrote to memory of 1028 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe cmd.exe PID 948 wrote to memory of 1028 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe cmd.exe PID 948 wrote to memory of 1028 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe cmd.exe PID 948 wrote to memory of 1028 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe cmd.exe PID 948 wrote to memory of 980 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe zeqtnwch.exe PID 948 wrote to memory of 980 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe zeqtnwch.exe PID 948 wrote to memory of 980 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe zeqtnwch.exe PID 948 wrote to memory of 980 948 db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe zeqtnwch.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe"C:\Users\Admin\AppData\Local\Temp\db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841.exe"1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:948 -
C:\Windows\SysWOW64\cmd.execmd.exe /c C:\Users\Admin\AppData\Local\Temp\2⤵PID:1028
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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"2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:980
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
732KB
MD5a20059fdc62668a1bc68d5f1691b33de
SHA16f86fab1c3f5897c46e7a8a9386214c1dd3be4da
SHA256db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841
SHA5125a882b4b51ee7bb9e3afd7033004391f9d71e82775da0034eb44cdaf1df1b6061a379a854d20576f3010d266f6475607fd29550825f1bd110698b5d525b986cb
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Filesize
732KB
MD5a20059fdc62668a1bc68d5f1691b33de
SHA16f86fab1c3f5897c46e7a8a9386214c1dd3be4da
SHA256db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841
SHA5125a882b4b51ee7bb9e3afd7033004391f9d71e82775da0034eb44cdaf1df1b6061a379a854d20576f3010d266f6475607fd29550825f1bd110698b5d525b986cb
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Filesize
732KB
MD5a20059fdc62668a1bc68d5f1691b33de
SHA16f86fab1c3f5897c46e7a8a9386214c1dd3be4da
SHA256db983f3dd070a7b403f0b56f7b377959c46416b3b48328b2e343f2ecd988b841
SHA5125a882b4b51ee7bb9e3afd7033004391f9d71e82775da0034eb44cdaf1df1b6061a379a854d20576f3010d266f6475607fd29550825f1bd110698b5d525b986cb