Analysis
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max time kernel
152s -
max time network
132s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
14/10/2022, 10:13
Static task
static1
Behavioral task
behavioral1
Sample
cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe
Resource
win7-20220812-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe
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Size
88KB
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MD5
76b9593b7b1b4e1bb3296fb23b6f9507
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SHA1
954d3d752db56ebb2dc6fb801dcf7eaf2eda45fa
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SHA256
cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543
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SHA512
e283c9ff829b7c319bbad489b22425b009d850abc1791f8be266260d5f0f6b4e68635fb387bc8173abdca6f81cf00ca94b88fa1d66392c99f9df8a5e64d96675
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SSDEEP
1536:bf9eJl4ZJzK3CdFGupcDAgZu38P7j+bID+ZXuTvorscL:L9NnOCOuMAg7j+0D+KvaL
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" cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" knyet.exe -
Executes dropped EXE 2 IoCs
pid Process 1780 knyet.exe 1776 knyet.exe -
Loads dropped DLL 2 IoCs
pid Process 1860 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 1860 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.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\knyet = "C:\\Users\\Admin\\knyet.exe /g" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /n" knyet.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /y" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /x" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /s" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /b" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /u" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /w" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /e" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /m" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /d" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /f" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /p" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /r" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /i" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /v" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /l" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /j" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /o" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /q" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /h" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /c" knyet.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /z" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /a" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /t" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /k" knyet.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\knyet = "C:\\Users\\Admin\\knyet.exe /c" cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum knyet.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 knyet.exe -
Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\Users\Admin\c\autorun.inf knyet.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1976 set thread context of 1860 1976 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 26 PID 1780 set thread context of 1776 1780 knyet.exe 28 -
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 1860 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe 1776 knyet.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1976 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 1860 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 1780 knyet.exe 1776 knyet.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1976 wrote to memory of 1860 1976 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 26 PID 1976 wrote to memory of 1860 1976 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 26 PID 1976 wrote to memory of 1860 1976 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 26 PID 1976 wrote to memory of 1860 1976 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 26 PID 1976 wrote to memory of 1860 1976 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 26 PID 1976 wrote to memory of 1860 1976 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 26 PID 1976 wrote to memory of 1860 1976 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 26 PID 1976 wrote to memory of 1860 1976 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 26 PID 1976 wrote to memory of 1860 1976 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 26 PID 1976 wrote to memory of 1860 1976 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 26 PID 1860 wrote to memory of 1780 1860 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 27 PID 1860 wrote to memory of 1780 1860 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 27 PID 1860 wrote to memory of 1780 1860 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 27 PID 1860 wrote to memory of 1780 1860 cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe 27 PID 1780 wrote to memory of 1776 1780 knyet.exe 28 PID 1780 wrote to memory of 1776 1780 knyet.exe 28 PID 1780 wrote to memory of 1776 1780 knyet.exe 28 PID 1780 wrote to memory of 1776 1780 knyet.exe 28 PID 1780 wrote to memory of 1776 1780 knyet.exe 28 PID 1780 wrote to memory of 1776 1780 knyet.exe 28 PID 1780 wrote to memory of 1776 1780 knyet.exe 28 PID 1780 wrote to memory of 1776 1780 knyet.exe 28 PID 1780 wrote to memory of 1776 1780 knyet.exe 28 PID 1780 wrote to memory of 1776 1780 knyet.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe"C:\Users\Admin\AppData\Local\Temp\cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1976 -
C:\Users\Admin\AppData\Local\Temp\cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543.exe722⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1860 -
C:\Users\Admin\knyet.exe"C:\Users\Admin\knyet.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1780 -
C:\Users\Admin\knyet.exe724⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1776
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
88KB
MD576b9593b7b1b4e1bb3296fb23b6f9507
SHA1954d3d752db56ebb2dc6fb801dcf7eaf2eda45fa
SHA256cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543
SHA512e283c9ff829b7c319bbad489b22425b009d850abc1791f8be266260d5f0f6b4e68635fb387bc8173abdca6f81cf00ca94b88fa1d66392c99f9df8a5e64d96675
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Filesize
88KB
MD576b9593b7b1b4e1bb3296fb23b6f9507
SHA1954d3d752db56ebb2dc6fb801dcf7eaf2eda45fa
SHA256cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543
SHA512e283c9ff829b7c319bbad489b22425b009d850abc1791f8be266260d5f0f6b4e68635fb387bc8173abdca6f81cf00ca94b88fa1d66392c99f9df8a5e64d96675
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Filesize
88KB
MD576b9593b7b1b4e1bb3296fb23b6f9507
SHA1954d3d752db56ebb2dc6fb801dcf7eaf2eda45fa
SHA256cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543
SHA512e283c9ff829b7c319bbad489b22425b009d850abc1791f8be266260d5f0f6b4e68635fb387bc8173abdca6f81cf00ca94b88fa1d66392c99f9df8a5e64d96675
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Filesize
88KB
MD576b9593b7b1b4e1bb3296fb23b6f9507
SHA1954d3d752db56ebb2dc6fb801dcf7eaf2eda45fa
SHA256cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543
SHA512e283c9ff829b7c319bbad489b22425b009d850abc1791f8be266260d5f0f6b4e68635fb387bc8173abdca6f81cf00ca94b88fa1d66392c99f9df8a5e64d96675
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Filesize
88KB
MD576b9593b7b1b4e1bb3296fb23b6f9507
SHA1954d3d752db56ebb2dc6fb801dcf7eaf2eda45fa
SHA256cd9dd83cb08a0406cb6a940e458d7172cc09a1a49cac86f15b601a9f7fd84543
SHA512e283c9ff829b7c319bbad489b22425b009d850abc1791f8be266260d5f0f6b4e68635fb387bc8173abdca6f81cf00ca94b88fa1d66392c99f9df8a5e64d96675