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Analysis
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max time kernel
152s -
max time network
167s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
30/10/2022, 19:59
Static task
static1
Behavioral task
behavioral1
Sample
32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe
Resource
win7-20220812-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe
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Size
100KB
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MD5
81e74404a1bc4040b4e9cd7d9a12ed3f
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SHA1
e1438108efe01ff39c3c2a0cb9729ef96d775160
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SHA256
32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763
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SHA512
f9f9218eeaff7eb9021305b71962000cf88fbde550508d47cfcfc89ab99f693d8cc0a9aa410a31d47c9835c900937d1c888d11aba4879407201997d5e421c4ce
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SSDEEP
1536:jDjNK8Y4xjWSWHYwRlEpMZBthCsaW6VGSF2TOdNcTcb5TWC51LwVpY:ZK2VW3dtZBBLMTwkL+Y
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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" muaci.exe -
Executes dropped EXE 2 IoCs
pid Process 5052 muaci.exe 3944 muaci.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /n" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /m" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /a" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /z" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /r" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /l" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /c" 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /k" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /p" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /e" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /y" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /j" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /x" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /g" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /f" muaci.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /t" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /s" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /v" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /i" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /d" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /u" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /w" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /q" muaci.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /c" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /b" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /h" muaci.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muaci = "C:\\Users\\Admin\\muaci.exe /o" muaci.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 value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 muaci.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum muaci.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 muaci.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4324 set thread context of 2240 4324 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 79 PID 5052 set thread context of 3944 5052 muaci.exe 81 -
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 2240 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 2240 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe 3944 muaci.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 4324 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 2240 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 5052 muaci.exe 3944 muaci.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 4324 wrote to memory of 2240 4324 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 79 PID 4324 wrote to memory of 2240 4324 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 79 PID 4324 wrote to memory of 2240 4324 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 79 PID 4324 wrote to memory of 2240 4324 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 79 PID 4324 wrote to memory of 2240 4324 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 79 PID 4324 wrote to memory of 2240 4324 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 79 PID 4324 wrote to memory of 2240 4324 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 79 PID 4324 wrote to memory of 2240 4324 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 79 PID 4324 wrote to memory of 2240 4324 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 79 PID 2240 wrote to memory of 5052 2240 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 80 PID 2240 wrote to memory of 5052 2240 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 80 PID 2240 wrote to memory of 5052 2240 32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe 80 PID 5052 wrote to memory of 3944 5052 muaci.exe 81 PID 5052 wrote to memory of 3944 5052 muaci.exe 81 PID 5052 wrote to memory of 3944 5052 muaci.exe 81 PID 5052 wrote to memory of 3944 5052 muaci.exe 81 PID 5052 wrote to memory of 3944 5052 muaci.exe 81 PID 5052 wrote to memory of 3944 5052 muaci.exe 81 PID 5052 wrote to memory of 3944 5052 muaci.exe 81 PID 5052 wrote to memory of 3944 5052 muaci.exe 81 PID 5052 wrote to memory of 3944 5052 muaci.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe"C:\Users\Admin\AppData\Local\Temp\32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4324 -
C:\Users\Admin\AppData\Local\Temp\32a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763.exe722⤵
- 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:2240 -
C:\Users\Admin\muaci.exe"C:\Users\Admin\muaci.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5052 -
C:\Users\Admin\muaci.exe724⤵
- 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:3944
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
100KB
MD581e74404a1bc4040b4e9cd7d9a12ed3f
SHA1e1438108efe01ff39c3c2a0cb9729ef96d775160
SHA25632a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763
SHA512f9f9218eeaff7eb9021305b71962000cf88fbde550508d47cfcfc89ab99f693d8cc0a9aa410a31d47c9835c900937d1c888d11aba4879407201997d5e421c4ce
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Filesize
100KB
MD581e74404a1bc4040b4e9cd7d9a12ed3f
SHA1e1438108efe01ff39c3c2a0cb9729ef96d775160
SHA25632a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763
SHA512f9f9218eeaff7eb9021305b71962000cf88fbde550508d47cfcfc89ab99f693d8cc0a9aa410a31d47c9835c900937d1c888d11aba4879407201997d5e421c4ce
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Filesize
100KB
MD581e74404a1bc4040b4e9cd7d9a12ed3f
SHA1e1438108efe01ff39c3c2a0cb9729ef96d775160
SHA25632a6da817b9d96d0b6c09108e845ab6e539a73814fb76b19ef20b6cf0eca8763
SHA512f9f9218eeaff7eb9021305b71962000cf88fbde550508d47cfcfc89ab99f693d8cc0a9aa410a31d47c9835c900937d1c888d11aba4879407201997d5e421c4ce