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Analysis
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max time kernel
151s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
03/12/2022, 19:27
Static task
static1
Behavioral task
behavioral1
Sample
50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe
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Size
184KB
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MD5
286ecb4a7f76131d2d9438818cd56050
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SHA1
596c8b6f9f025a6fa0f73fb85b06587c15a2a685
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SHA256
50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617
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SHA512
5d6330bf4e00d000cd0642746597c80f9c73a4b62f33915b0c659bd00e8e043fc6b342beb3293d344a74b60310ad6592db29a446ab9448ca60819a773c70b072
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SSDEEP
3072:E3e3irjob64QDLw4fUbaxoOGM7J0Z4y1oEc2xtq1cy4aqosAm+w90ZC4:O9c4egCby4aqosAm+w90z
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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" wuiir.exe -
Executes dropped EXE 1 IoCs
pid Process 2004 wuiir.exe -
Loads dropped DLL 2 IoCs
pid Process 948 50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe 948 50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /e" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /l" 50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /p" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /l" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /z" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /r" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /s" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /f" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /i" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /a" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /d" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /m" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /y" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /b" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /t" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /x" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /n" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /u" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /j" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /g" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /v" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /k" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /h" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /o" wuiir.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /w" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /q" wuiir.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuiir = "C:\\Users\\Admin\\wuiir.exe /c" wuiir.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 948 50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe 2004 wuiir.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 948 50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe 2004 wuiir.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 948 wrote to memory of 2004 948 50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe 27 PID 948 wrote to memory of 2004 948 50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe 27 PID 948 wrote to memory of 2004 948 50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe 27 PID 948 wrote to memory of 2004 948 50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.exe"C:\Users\Admin\AppData\Local\Temp\50563068eccf62f884fda0cea3236f5aab488772b9cfcadde28492c338ba9617.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:948 -
C:\Users\Admin\wuiir.exe"C:\Users\Admin\wuiir.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:2004
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
184KB
MD57b32f446faf2d16a9cc1ecc7f7f71e2f
SHA12b679ad51e3e89a28fb320059bed8b50d0baa01f
SHA256f40260374cb78485e2901b7a9c5f4e2e9367ad5cdf885d80b7b25dd4676aed04
SHA51210c9d8ce67457ded3b4003dfb9ec22c601957cdca86fa5fd9553dcf06010e692dd62a17d22642bdf0e9d5ff4cf18b42f58f053e73a8e0d0622397240580e464a
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Filesize
184KB
MD57b32f446faf2d16a9cc1ecc7f7f71e2f
SHA12b679ad51e3e89a28fb320059bed8b50d0baa01f
SHA256f40260374cb78485e2901b7a9c5f4e2e9367ad5cdf885d80b7b25dd4676aed04
SHA51210c9d8ce67457ded3b4003dfb9ec22c601957cdca86fa5fd9553dcf06010e692dd62a17d22642bdf0e9d5ff4cf18b42f58f053e73a8e0d0622397240580e464a
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Filesize
184KB
MD57b32f446faf2d16a9cc1ecc7f7f71e2f
SHA12b679ad51e3e89a28fb320059bed8b50d0baa01f
SHA256f40260374cb78485e2901b7a9c5f4e2e9367ad5cdf885d80b7b25dd4676aed04
SHA51210c9d8ce67457ded3b4003dfb9ec22c601957cdca86fa5fd9553dcf06010e692dd62a17d22642bdf0e9d5ff4cf18b42f58f053e73a8e0d0622397240580e464a
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Filesize
184KB
MD57b32f446faf2d16a9cc1ecc7f7f71e2f
SHA12b679ad51e3e89a28fb320059bed8b50d0baa01f
SHA256f40260374cb78485e2901b7a9c5f4e2e9367ad5cdf885d80b7b25dd4676aed04
SHA51210c9d8ce67457ded3b4003dfb9ec22c601957cdca86fa5fd9553dcf06010e692dd62a17d22642bdf0e9d5ff4cf18b42f58f053e73a8e0d0622397240580e464a