Analysis
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max time kernel
152s -
max time network
74s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
05-12-2022 09:54
Static task
static1
Behavioral task
behavioral1
Sample
6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe
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Size
104KB
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MD5
2437a3f1a802ba600f8263f8108d710b
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SHA1
f55cdee5ddf4fea7a484058aad96b1ab1fe9a41f
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SHA256
6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d
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SHA512
100e28be38a48dbf959d58109e93b7e294e2814bc34f589f44325c5f8b2c35a5360c75a130e8bf317d1b467365d2f9220c3cb15019ed0c0b86775f6f60feeee5
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SSDEEP
1536:TdS6Njj/rKm+HBc+hFKNIqpOGQvLsTZF6oc9B+XjLlm:hpt+FrKNZ3QvLsTmB+3s
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" kaioki.exe -
Executes dropped EXE 1 IoCs
pid Process 1756 kaioki.exe -
Loads dropped DLL 2 IoCs
pid Process 868 6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe 868 6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /k" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /l" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /f" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /y" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /u" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /h" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /n" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /e" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /p" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /c" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /z" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /m" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /t" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /j" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /d" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /g" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /i" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /x" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /x" 6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /b" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /o" kaioki.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /a" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /s" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /q" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /r" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /w" kaioki.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kaioki = "C:\\Users\\Admin\\kaioki.exe /v" kaioki.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 868 6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe 1756 kaioki.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 868 6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe 1756 kaioki.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 868 wrote to memory of 1756 868 6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe 27 PID 868 wrote to memory of 1756 868 6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe 27 PID 868 wrote to memory of 1756 868 6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe 27 PID 868 wrote to memory of 1756 868 6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe"C:\Users\Admin\AppData\Local\Temp\6531be31ee3739dcd6e034263f05d5935cc94db2780d33933d969f289676be4d.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:868 -
C:\Users\Admin\kaioki.exe"C:\Users\Admin\kaioki.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1756
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
104KB
MD567cdb524ce90236b9a2ea7c496b6ab40
SHA1176b09a209952d6a8712cd6ab6e7e77a577d4fae
SHA2560f1a09a2abca6e40a1a56535908bd31367f40fc0e775106d80969d1d0554c8cd
SHA512cbed8ce297d8ae21c7732001872cafaf87a62d055499f639aee5690efbe02ea1a60fe907bf1c1e9eee9570b795b05d1ab8e9cb5137aaea76573712e001e53179
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Filesize
104KB
MD567cdb524ce90236b9a2ea7c496b6ab40
SHA1176b09a209952d6a8712cd6ab6e7e77a577d4fae
SHA2560f1a09a2abca6e40a1a56535908bd31367f40fc0e775106d80969d1d0554c8cd
SHA512cbed8ce297d8ae21c7732001872cafaf87a62d055499f639aee5690efbe02ea1a60fe907bf1c1e9eee9570b795b05d1ab8e9cb5137aaea76573712e001e53179
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Filesize
104KB
MD567cdb524ce90236b9a2ea7c496b6ab40
SHA1176b09a209952d6a8712cd6ab6e7e77a577d4fae
SHA2560f1a09a2abca6e40a1a56535908bd31367f40fc0e775106d80969d1d0554c8cd
SHA512cbed8ce297d8ae21c7732001872cafaf87a62d055499f639aee5690efbe02ea1a60fe907bf1c1e9eee9570b795b05d1ab8e9cb5137aaea76573712e001e53179
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Filesize
104KB
MD567cdb524ce90236b9a2ea7c496b6ab40
SHA1176b09a209952d6a8712cd6ab6e7e77a577d4fae
SHA2560f1a09a2abca6e40a1a56535908bd31367f40fc0e775106d80969d1d0554c8cd
SHA512cbed8ce297d8ae21c7732001872cafaf87a62d055499f639aee5690efbe02ea1a60fe907bf1c1e9eee9570b795b05d1ab8e9cb5137aaea76573712e001e53179