Analysis
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max time kernel
152s -
max time network
44s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
12-10-2022 15:00
Static task
static1
Behavioral task
behavioral1
Sample
9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe
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Size
432KB
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MD5
6ca1fae204eab34cb297f7e83df6fdbf
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SHA1
9bdd963743a2b45347301efd157423f9ec7680df
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SHA256
9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e
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SHA512
745f05bc79be67a0f3820c2b30133a72a5a21f5703915035d449e349e44eec9ac6ab2be4d592b3aff6c082c699d1de9ee82f4da31e036a1b97b25328822c397e
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SSDEEP
6144:t1VZfBdIgi71nAv/szQIzf4Zj3JVyN/Y53fZ6ZsVb75:rVLdInSssIWjPy9Y53B6A75
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-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" gakuh.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe -
Executes dropped EXE 1 IoCs
pid Process 1936 gakuh.exe -
Loads dropped DLL 2 IoCs
pid Process 1348 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 1348 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /d" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /i" gakuh.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /u" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /m" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /l" 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /w" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /x" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /v" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /h" gakuh.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /y" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /a" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /b" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /q" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /t" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /r" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /c" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /z" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /e" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /s" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /f" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /l" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /o" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /g" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /n" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /k" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /p" gakuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\gakuh = "C:\\Users\\Admin\\gakuh.exe /j" gakuh.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 1348 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe 1936 gakuh.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1348 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 1936 gakuh.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1348 wrote to memory of 1936 1348 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 26 PID 1348 wrote to memory of 1936 1348 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 26 PID 1348 wrote to memory of 1936 1348 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 26 PID 1348 wrote to memory of 1936 1348 9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.exe"C:\Users\Admin\AppData\Local\Temp\9db69b7b135fa02bbeb0cb514eb929a389aeef3eedb4bd15d13c8a9108b6a03e.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:1348 -
C:\Users\Admin\gakuh.exe"C:\Users\Admin\gakuh.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:1936
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
432KB
MD5596dd256485b61dcb0ebc25a5e38524e
SHA19b2ecb16ba11806f6485650c0efd8c59d4cd321f
SHA256a4b131e88da0924237e48bee6fac76c24e9b5afb6333e56cfef6a823945b54b9
SHA512f8f1f32e82e2cfeb7da567a512f631afa61709b862d29ad83243f4e9fcb47afd0667b5ac9d220cafc738107adf5f2951508883041990f30720993e9196ec76a3
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Filesize
432KB
MD5596dd256485b61dcb0ebc25a5e38524e
SHA19b2ecb16ba11806f6485650c0efd8c59d4cd321f
SHA256a4b131e88da0924237e48bee6fac76c24e9b5afb6333e56cfef6a823945b54b9
SHA512f8f1f32e82e2cfeb7da567a512f631afa61709b862d29ad83243f4e9fcb47afd0667b5ac9d220cafc738107adf5f2951508883041990f30720993e9196ec76a3
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Filesize
432KB
MD5596dd256485b61dcb0ebc25a5e38524e
SHA19b2ecb16ba11806f6485650c0efd8c59d4cd321f
SHA256a4b131e88da0924237e48bee6fac76c24e9b5afb6333e56cfef6a823945b54b9
SHA512f8f1f32e82e2cfeb7da567a512f631afa61709b862d29ad83243f4e9fcb47afd0667b5ac9d220cafc738107adf5f2951508883041990f30720993e9196ec76a3
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Filesize
432KB
MD5596dd256485b61dcb0ebc25a5e38524e
SHA19b2ecb16ba11806f6485650c0efd8c59d4cd321f
SHA256a4b131e88da0924237e48bee6fac76c24e9b5afb6333e56cfef6a823945b54b9
SHA512f8f1f32e82e2cfeb7da567a512f631afa61709b862d29ad83243f4e9fcb47afd0667b5ac9d220cafc738107adf5f2951508883041990f30720993e9196ec76a3