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Analysis
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max time kernel
191s -
max time network
135s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
05/12/2022, 10:11
Static task
static1
Behavioral task
behavioral1
Sample
b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe
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Size
240KB
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MD5
77266775a227151f03e94f13759dc77d
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SHA1
57cf029ab9eea83e162126e3b8f3f4453a59e6ce
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SHA256
b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956
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SHA512
b68355da85d53eb78bcf86e89e8283af5156206d8219f4a0589c890f2f82c02978bb7fabba7ad808c905ff647ce685524014df4c7f0c6d39ec722d6c05291130
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SSDEEP
3072:2kBrXT8j6VlpuBd90i/SmWKLi7CjFSivnfu3fbMdozt5cz+4T:2t0UGKGkFRKfeoztO3
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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" keivo.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe -
Executes dropped EXE 1 IoCs
pid Process 380 keivo.exe -
Loads dropped DLL 2 IoCs
pid Process 516 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 516 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /h" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /w" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /u" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /z" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /e" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /l" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /c" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /t" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /b" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /y" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /s" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /i" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /n" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /a" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /j" keivo.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /r" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /x" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /p" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /k" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /o" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /d" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /v" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /r" b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /m" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /g" keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /q" keivo.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ keivo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\keivo = "C:\\Users\\Admin\\keivo.exe /f" keivo.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 516 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe 380 keivo.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 516 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 380 keivo.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 516 wrote to memory of 380 516 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 28 PID 516 wrote to memory of 380 516 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 28 PID 516 wrote to memory of 380 516 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 28 PID 516 wrote to memory of 380 516 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe"C:\Users\Admin\AppData\Local\Temp\b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.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:516 -
C:\Users\Admin\keivo.exe"C:\Users\Admin\keivo.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:380
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
240KB
MD51283dd5ee2c0a7824586c10f3fdf5582
SHA1656a6c88a9c5a642561b06a8877b2325f3f01b07
SHA25651d16275cea18e51abb54b6b5d3dfd5ca289e160d15b699853416138c5c4f486
SHA512e05ccdf53489dcd135745eb02f5590ef477e475af1c844b05ae10d352e72363cfdc464b225dc5a5883f1dbf8634e4ece385679b7ad49defa2535df06eacceee0
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Filesize
240KB
MD51283dd5ee2c0a7824586c10f3fdf5582
SHA1656a6c88a9c5a642561b06a8877b2325f3f01b07
SHA25651d16275cea18e51abb54b6b5d3dfd5ca289e160d15b699853416138c5c4f486
SHA512e05ccdf53489dcd135745eb02f5590ef477e475af1c844b05ae10d352e72363cfdc464b225dc5a5883f1dbf8634e4ece385679b7ad49defa2535df06eacceee0
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Filesize
240KB
MD51283dd5ee2c0a7824586c10f3fdf5582
SHA1656a6c88a9c5a642561b06a8877b2325f3f01b07
SHA25651d16275cea18e51abb54b6b5d3dfd5ca289e160d15b699853416138c5c4f486
SHA512e05ccdf53489dcd135745eb02f5590ef477e475af1c844b05ae10d352e72363cfdc464b225dc5a5883f1dbf8634e4ece385679b7ad49defa2535df06eacceee0
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Filesize
240KB
MD51283dd5ee2c0a7824586c10f3fdf5582
SHA1656a6c88a9c5a642561b06a8877b2325f3f01b07
SHA25651d16275cea18e51abb54b6b5d3dfd5ca289e160d15b699853416138c5c4f486
SHA512e05ccdf53489dcd135745eb02f5590ef477e475af1c844b05ae10d352e72363cfdc464b225dc5a5883f1dbf8634e4ece385679b7ad49defa2535df06eacceee0