Analysis
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max time kernel
150s -
max time network
52s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
06-12-2022 00:00
Static task
static1
Behavioral task
behavioral1
Sample
9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe
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Size
336KB
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MD5
472415f5fa15d1c6e8584864a625bd90
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SHA1
787f9d20666e1cee11f8b05e764cb9ff8703dabf
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SHA256
9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641
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SHA512
77234a013b41e239d7b6ce407b7561b2aee5b76fc62b79675b9b4888e153c4eeee9174b7bc0deab59471a6fb60e3ab90502a753625772e6361ea88440ebb4c1a
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SSDEEP
6144:IYXkpYGCleWt3LFCmwg1HGTs7mObLLWtXi3TqWy:Ijd+mTs7lLLuXik
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" 9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" muuod.exe -
Executes dropped EXE 1 IoCs
pid Process 900 muuod.exe -
Loads dropped DLL 2 IoCs
pid Process 1552 9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe 1552 9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /k" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /Y" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /L" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /Q" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /l" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /p" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /A" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /M" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /s" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /N" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /W" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /z" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /F" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /i" muuod.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /b" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /G" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /T" 9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /U" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /K" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /n" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /E" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /I" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /P" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /B" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /j" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /d" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /V" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /r" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /o" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /v" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /t" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /w" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /H" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /Z" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /T" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /q" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /X" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /f" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /c" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /R" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /S" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /O" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /J" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /h" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /D" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /g" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /y" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /u" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /C" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /m" muuod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\muuod = "C:\\Users\\Admin\\muuod.exe /a" muuod.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ muuod.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 1552 9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe 900 muuod.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1552 9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe 900 muuod.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1552 wrote to memory of 900 1552 9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe 26 PID 1552 wrote to memory of 900 1552 9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe 26 PID 1552 wrote to memory of 900 1552 9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe 26 PID 1552 wrote to memory of 900 1552 9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.exe"C:\Users\Admin\AppData\Local\Temp\9ca1e27b3012838bc2dbe65549ecf0b9b37c23dbd554b337f005d8ee665d9641.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:1552 -
C:\Users\Admin\muuod.exe"C:\Users\Admin\muuod.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:900
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
336KB
MD503a2e244dd331e3ea76a8d5f6bc568a6
SHA1a70f279742a4dbdbba592ae7bdc7518a6883f0dc
SHA2565dc58b01421b2e38427575fb8e02dba90ecfaa2e1b643c97f95611464bd721bf
SHA512bc7da473004796bb9dd03df42c9b57dc72965508bd74ba04871060470dfc40b28a00c8a0360518aa9b743c87d6c3be95e952498d2111da7862b5ae84b631e19f
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Filesize
336KB
MD503a2e244dd331e3ea76a8d5f6bc568a6
SHA1a70f279742a4dbdbba592ae7bdc7518a6883f0dc
SHA2565dc58b01421b2e38427575fb8e02dba90ecfaa2e1b643c97f95611464bd721bf
SHA512bc7da473004796bb9dd03df42c9b57dc72965508bd74ba04871060470dfc40b28a00c8a0360518aa9b743c87d6c3be95e952498d2111da7862b5ae84b631e19f
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Filesize
336KB
MD503a2e244dd331e3ea76a8d5f6bc568a6
SHA1a70f279742a4dbdbba592ae7bdc7518a6883f0dc
SHA2565dc58b01421b2e38427575fb8e02dba90ecfaa2e1b643c97f95611464bd721bf
SHA512bc7da473004796bb9dd03df42c9b57dc72965508bd74ba04871060470dfc40b28a00c8a0360518aa9b743c87d6c3be95e952498d2111da7862b5ae84b631e19f
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Filesize
336KB
MD503a2e244dd331e3ea76a8d5f6bc568a6
SHA1a70f279742a4dbdbba592ae7bdc7518a6883f0dc
SHA2565dc58b01421b2e38427575fb8e02dba90ecfaa2e1b643c97f95611464bd721bf
SHA512bc7da473004796bb9dd03df42c9b57dc72965508bd74ba04871060470dfc40b28a00c8a0360518aa9b743c87d6c3be95e952498d2111da7862b5ae84b631e19f