Analysis
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max time kernel
120s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
20-09-2024 19:22
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe
Resource
win7-20240903-en
windows7-x64
9 signatures
120 seconds
Behavioral task
behavioral2
Sample
31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
9 signatures
120 seconds
General
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Target
31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe
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Size
96KB
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MD5
f37b0385c77d94571a1687f38a8cc8f0
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SHA1
5efcfa4eaad6309e16a77ef77438b53273a87da3
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SHA256
31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909
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SHA512
af60924460637e1f7c97f2fd704ae3cbf6baed91a86b670888175e7bc3c650f3f2afd9b2e5e6da720119551e9d97bed0882ed9c81b6bc5620d36e5f30663972b
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SSDEEP
1536:8TQBHFf6cO/hLCkGulSc16l6u+NMMl/KlYv1Tq5ThFQNIjnZD:nGhrlu8CFFQCnR
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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" muaacud.exe Set value (int) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation 31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe -
Executes dropped EXE 1 IoCs
pid Process 3520 muaacud.exe -
Adds Run key to start application 2 TTPs 52 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /w" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /O" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /S" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /A" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /W" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /b" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /Q" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /T" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /x" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /r" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /y" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /f" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /C" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /G" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /V" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /X" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /H" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /m" 31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /B" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /D" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /o" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /K" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /j" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /M" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /J" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /p" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /n" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /v" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /k" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /R" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /s" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /L" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /e" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /i" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /N" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /g" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /a" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /E" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /m" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /z" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /P" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /c" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /d" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /t" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /I" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /U" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /q" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /h" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /l" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /Y" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /u" muaacud.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaacud = "C:\\Users\\Admin\\muaacud.exe /F" muaacud.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language muaacud.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2944 31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe 2944 31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe 3520 muaacud.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2944 31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe 3520 muaacud.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2944 wrote to memory of 3520 2944 31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe 84 PID 2944 wrote to memory of 3520 2944 31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe 84 PID 2944 wrote to memory of 3520 2944 31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe"C:\Users\Admin\AppData\Local\Temp\31791b87f2332a69a09031d5e61017e0a090201d639e726bf9077e7732824909N.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2944 -
C:\Users\Admin\muaacud.exe"C:\Users\Admin\muaacud.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3520
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
96KB
MD5f25b0d1227632f5ec291a4ac0964edcc
SHA11cafe40f6b6098049d8e09e3fefcda5b233da673
SHA25660e58a7f5fd4c2c9aa7343e79d4853b5333986d42bb7176513d9e321db9a016c
SHA5124f8110cf4e103d0469731929480d11727d1ef3e37446e66f5a677e0a6c29d4dd97ded16db57446743a28f895aeefcc26b3f59fec4eeeb0122e2a36f6667a07f3