Analysis
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max time kernel
152s -
max time network
98s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
05/12/2022, 23:47
Static task
static1
Behavioral task
behavioral1
Sample
2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe
Resource
win7-20221111-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
10 signatures
150 seconds
General
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Target
2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe
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Size
260KB
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MD5
7d5a4f66f4602e76bb64ea7b8a98903d
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SHA1
e9746516c7e7aa479b5ef7e8aab4f6ca6eebf6db
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SHA256
2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969
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SHA512
b19fc975ba9893705d4c1effe5ae63ccba208041a0bea6dc1bb94c5a0f11292a540f11bbb57a92e0f35b97a1db20d427fed70baff0107f8faac73017d58cd494
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SSDEEP
3072:QzileYvqsylMThDg2Gg74AtDkJqmgXX4LfgrCFkBPt:VeYvqCTFVD7GqfXsiP
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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe Set value (int) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" rzyot.exe -
Executes dropped EXE 1 IoCs
pid Process 1328 rzyot.exe -
Loads dropped DLL 2 IoCs
pid Process 1276 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe 1276 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe -
Adds Run key to start application 2 TTPs 28 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /k" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /d" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /f" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /i" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /n" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /s" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /x" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /b" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /q" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /g" rzyot.exe Key created \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\ rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /c" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /r" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /m" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /z" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /u" rzyot.exe Key created \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /e" 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /v" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /l" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /e" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /w" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /t" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /a" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /y" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /o" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /h" rzyot.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rzyot = "C:\\Users\\Admin\\rzyot.exe /p" rzyot.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 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum rzyot.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 rzyot.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
pid pid_target Process procid_target 1292 1276 WerFault.exe 17 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1276 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe 1328 rzyot.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1276 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe 1328 rzyot.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1276 wrote to memory of 1328 1276 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe 28 PID 1276 wrote to memory of 1328 1276 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe 28 PID 1276 wrote to memory of 1328 1276 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe 28 PID 1276 wrote to memory of 1328 1276 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe 28 PID 1276 wrote to memory of 1292 1276 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe 29 PID 1276 wrote to memory of 1292 1276 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe 29 PID 1276 wrote to memory of 1292 1276 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe 29 PID 1276 wrote to memory of 1292 1276 2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe"C:\Users\Admin\AppData\Local\Temp\2528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969.exe"1⤵
- 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:1276 -
C:\Users\Admin\rzyot.exe"C:\Users\Admin\rzyot.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1328
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1276 -s 9402⤵
- Program crash
PID:1292
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
260KB
MD57d5a4f66f4602e76bb64ea7b8a98903d
SHA1e9746516c7e7aa479b5ef7e8aab4f6ca6eebf6db
SHA2562528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969
SHA512b19fc975ba9893705d4c1effe5ae63ccba208041a0bea6dc1bb94c5a0f11292a540f11bbb57a92e0f35b97a1db20d427fed70baff0107f8faac73017d58cd494
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Filesize
260KB
MD57d5a4f66f4602e76bb64ea7b8a98903d
SHA1e9746516c7e7aa479b5ef7e8aab4f6ca6eebf6db
SHA2562528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969
SHA512b19fc975ba9893705d4c1effe5ae63ccba208041a0bea6dc1bb94c5a0f11292a540f11bbb57a92e0f35b97a1db20d427fed70baff0107f8faac73017d58cd494
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Filesize
260KB
MD57d5a4f66f4602e76bb64ea7b8a98903d
SHA1e9746516c7e7aa479b5ef7e8aab4f6ca6eebf6db
SHA2562528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969
SHA512b19fc975ba9893705d4c1effe5ae63ccba208041a0bea6dc1bb94c5a0f11292a540f11bbb57a92e0f35b97a1db20d427fed70baff0107f8faac73017d58cd494
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Filesize
260KB
MD57d5a4f66f4602e76bb64ea7b8a98903d
SHA1e9746516c7e7aa479b5ef7e8aab4f6ca6eebf6db
SHA2562528db9e8b3e5cf6c996a028b6b1807bb1a2e593ce678b460fcf91aea2cc8969
SHA512b19fc975ba9893705d4c1effe5ae63ccba208041a0bea6dc1bb94c5a0f11292a540f11bbb57a92e0f35b97a1db20d427fed70baff0107f8faac73017d58cd494