Analysis
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max time kernel
187s -
max time network
193s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
01/12/2022, 23:19
Static task
static1
Behavioral task
behavioral1
Sample
7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe
Resource
win7-20220901-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe
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Size
140KB
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MD5
36d96737401ee2759fd1690994dfcd30
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SHA1
e08eef66ff83c35b42758db705880a7f2cc0e3f5
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SHA256
7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d
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SHA512
1d7b2babe6f0a060baa7cebffa802200a6ef98b4d691dfec870fde79bc4c69f8908bf40ad169f8ab79ebfabc6bb613f6f84944d0310d6e1afb21673274318faf
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SSDEEP
1536:26L0WB3h77ukhVZ7YiHbsDNn3yZ4Zma80jmd4W2HD5Z9K5Ut9HtWjRnPfy2I/:26ISJYiHOi6Zm/0jKK5ZMmzAfI/
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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" nrboz.exe -
Executes dropped EXE 2 IoCs
pid Process 4256 nrboz.exe 964 nrboz.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /f" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /o" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /k" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /j" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /i" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /e" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /l" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /n" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /s" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /y" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /u" nrboz.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /d" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /p" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /g" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /v" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /t" 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /w" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /r" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /m" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /h" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /c" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /b" nrboz.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\ nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /q" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /a" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /t" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /z" nrboz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nrboz = "C:\\Users\\Admin\\nrboz.exe /x" nrboz.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 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum nrboz.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 nrboz.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 nrboz.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1404 set thread context of 4132 1404 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 83 PID 4256 set thread context of 964 4256 nrboz.exe 85 -
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 4132 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 4132 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe 964 nrboz.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1404 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 4132 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 4256 nrboz.exe 964 nrboz.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1404 wrote to memory of 4132 1404 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 83 PID 1404 wrote to memory of 4132 1404 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 83 PID 1404 wrote to memory of 4132 1404 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 83 PID 1404 wrote to memory of 4132 1404 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 83 PID 1404 wrote to memory of 4132 1404 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 83 PID 1404 wrote to memory of 4132 1404 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 83 PID 1404 wrote to memory of 4132 1404 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 83 PID 1404 wrote to memory of 4132 1404 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 83 PID 1404 wrote to memory of 4132 1404 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 83 PID 4132 wrote to memory of 4256 4132 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 84 PID 4132 wrote to memory of 4256 4132 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 84 PID 4132 wrote to memory of 4256 4132 7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe 84 PID 4256 wrote to memory of 964 4256 nrboz.exe 85 PID 4256 wrote to memory of 964 4256 nrboz.exe 85 PID 4256 wrote to memory of 964 4256 nrboz.exe 85 PID 4256 wrote to memory of 964 4256 nrboz.exe 85 PID 4256 wrote to memory of 964 4256 nrboz.exe 85 PID 4256 wrote to memory of 964 4256 nrboz.exe 85 PID 4256 wrote to memory of 964 4256 nrboz.exe 85 PID 4256 wrote to memory of 964 4256 nrboz.exe 85 PID 4256 wrote to memory of 964 4256 nrboz.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe"C:\Users\Admin\AppData\Local\Temp\7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1404 -
C:\Users\Admin\AppData\Local\Temp\7224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d.exe742⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4132 -
C:\Users\Admin\nrboz.exe"C:\Users\Admin\nrboz.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4256 -
C:\Users\Admin\nrboz.exe744⤵
- 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:964
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
140KB
MD536d96737401ee2759fd1690994dfcd30
SHA1e08eef66ff83c35b42758db705880a7f2cc0e3f5
SHA2567224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d
SHA5121d7b2babe6f0a060baa7cebffa802200a6ef98b4d691dfec870fde79bc4c69f8908bf40ad169f8ab79ebfabc6bb613f6f84944d0310d6e1afb21673274318faf
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Filesize
140KB
MD536d96737401ee2759fd1690994dfcd30
SHA1e08eef66ff83c35b42758db705880a7f2cc0e3f5
SHA2567224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d
SHA5121d7b2babe6f0a060baa7cebffa802200a6ef98b4d691dfec870fde79bc4c69f8908bf40ad169f8ab79ebfabc6bb613f6f84944d0310d6e1afb21673274318faf
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Filesize
140KB
MD536d96737401ee2759fd1690994dfcd30
SHA1e08eef66ff83c35b42758db705880a7f2cc0e3f5
SHA2567224c559454e56a4514c5383ebf7fabc47731579e3bbf92f11a50b685ae83e9d
SHA5121d7b2babe6f0a060baa7cebffa802200a6ef98b4d691dfec870fde79bc4c69f8908bf40ad169f8ab79ebfabc6bb613f6f84944d0310d6e1afb21673274318faf