Analysis
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max time kernel
151s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
03/10/2022, 16:31
Static task
static1
Behavioral task
behavioral1
Sample
e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe
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Size
156KB
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MD5
092270ec3dfe0f9cd718dc365af19978
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SHA1
186a227311b64aa0343e0774db39f4172ace5ac5
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SHA256
e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303
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SHA512
9a0b821e1df8cb10c1c703463464efce4df0b6d94b1f439291a121d8e3d421a8ca61fb0c881f650a105acfc79fb606b54b3fa5b0a96496af4265c2e1bdf59b11
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SSDEEP
3072:sK3gJdiYt+Vvu/5gEsSy8dH0pLaATo4oi6YX4oQZiEjbb:HKqvuTD0pLa2o4uY5WF3
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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" buitu.exe -
Executes dropped EXE 1 IoCs
pid Process 3616 buitu.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe -
Adds Run key to start application 2 TTPs 55 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /D" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /x" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /R" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /C" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /H" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /n" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /I" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /G" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /B" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /T" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /c" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /q" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /Z" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /F" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /X" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /l" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /L" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /V" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /b" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /u" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /e" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /o" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /K" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /r" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /j" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /a" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /M" e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /W" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /Q" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /g" buitu.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /Y" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /N" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /w" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /d" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /U" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /z" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /P" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /O" buitu.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /s" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /M" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /t" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /E" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /m" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /k" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /h" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /y" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /A" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /i" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /p" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /f" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /v" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /S" buitu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buitu = "C:\\Users\\Admin\\buitu.exe /J" buitu.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 5036 e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe 5036 e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe 3616 buitu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 5036 e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe 3616 buitu.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5036 wrote to memory of 3616 5036 e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe 86 PID 5036 wrote to memory of 3616 5036 e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe 86 PID 5036 wrote to memory of 3616 5036 e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe"C:\Users\Admin\AppData\Local\Temp\e7557239ddd4436003ee19fe952359635a7c3b04c2fcd3c8f32400087b13d303.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5036 -
C:\Users\Admin\buitu.exe"C:\Users\Admin\buitu.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:3616
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
156KB
MD5b1b4c2e8c3e3e473c6951b12adba5486
SHA154e4771b535cb3bcc8862221a4592233d79c6580
SHA2567d03475d14cd9019201c0f976136bbcba95a9daab50cd61bea944ada0f3d8403
SHA512e106fd46fb2884480726347e15f39b55603988642b0eaa7e96f66a7e0d6a7c21c054b6297f1c63bed4bc7e3320c1d03bf5d8e908f19e2439831e6eaf8d241e56
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Filesize
156KB
MD5b1b4c2e8c3e3e473c6951b12adba5486
SHA154e4771b535cb3bcc8862221a4592233d79c6580
SHA2567d03475d14cd9019201c0f976136bbcba95a9daab50cd61bea944ada0f3d8403
SHA512e106fd46fb2884480726347e15f39b55603988642b0eaa7e96f66a7e0d6a7c21c054b6297f1c63bed4bc7e3320c1d03bf5d8e908f19e2439831e6eaf8d241e56