Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2022 23:08
Static task
static1
Behavioral task
behavioral1
Sample
52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe
Resource
win7-20220812-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe
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Size
86KB
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MD5
1847b02ff8f0e75922223d1e751c4870
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SHA1
7f4b501c5734313813070ef07dd783cc0fe27df7
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SHA256
52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78
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SHA512
45d4ac910f12036295bdfeed5d3b157440683478c7c4ad07840221087cf7f2182891ea98d48db2b94e018321cb4ed807d9edffaeeccbd0be53034b9918b123a4
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SSDEEP
1536:v3lL0OOEoKjhkwETvdZbKANnR3+r+wuCvd9G59lRcXy:xhoKjhkvXfS5zdI5RcXy
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" 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" saatu.exe -
Executes dropped EXE 2 IoCs
pid Process 1124 saatu.exe 4968 saatu.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 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.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\saatu = "C:\\Users\\Admin\\saatu.exe /o" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /d" 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /l" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /y" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /f" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /p" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /z" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /c" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /d" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /r" saatu.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /t" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /e" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /i" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /u" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /g" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /n" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /w" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /x" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /v" saatu.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /a" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /q" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /h" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /k" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /s" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /j" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /m" saatu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\saatu = "C:\\Users\\Admin\\saatu.exe /b" saatu.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 opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum saatu.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 saatu.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 saatu.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4176 set thread context of 4212 4176 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 81 PID 1124 set thread context of 4968 1124 saatu.exe 83 -
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 4212 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 4212 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe 4968 saatu.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 4176 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 4212 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 1124 saatu.exe 4968 saatu.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 4176 wrote to memory of 4212 4176 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 81 PID 4176 wrote to memory of 4212 4176 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 81 PID 4176 wrote to memory of 4212 4176 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 81 PID 4176 wrote to memory of 4212 4176 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 81 PID 4176 wrote to memory of 4212 4176 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 81 PID 4176 wrote to memory of 4212 4176 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 81 PID 4176 wrote to memory of 4212 4176 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 81 PID 4176 wrote to memory of 4212 4176 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 81 PID 4176 wrote to memory of 4212 4176 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 81 PID 4212 wrote to memory of 1124 4212 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 82 PID 4212 wrote to memory of 1124 4212 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 82 PID 4212 wrote to memory of 1124 4212 52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe 82 PID 1124 wrote to memory of 4968 1124 saatu.exe 83 PID 1124 wrote to memory of 4968 1124 saatu.exe 83 PID 1124 wrote to memory of 4968 1124 saatu.exe 83 PID 1124 wrote to memory of 4968 1124 saatu.exe 83 PID 1124 wrote to memory of 4968 1124 saatu.exe 83 PID 1124 wrote to memory of 4968 1124 saatu.exe 83 PID 1124 wrote to memory of 4968 1124 saatu.exe 83 PID 1124 wrote to memory of 4968 1124 saatu.exe 83 PID 1124 wrote to memory of 4968 1124 saatu.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe"C:\Users\Admin\AppData\Local\Temp\52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4176 -
C:\Users\Admin\AppData\Local\Temp\52c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78.exe712⤵
- 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:4212 -
C:\Users\Admin\saatu.exe"C:\Users\Admin\saatu.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1124 -
C:\Users\Admin\saatu.exe714⤵
- 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:4968
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
86KB
MD51847b02ff8f0e75922223d1e751c4870
SHA17f4b501c5734313813070ef07dd783cc0fe27df7
SHA25652c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78
SHA51245d4ac910f12036295bdfeed5d3b157440683478c7c4ad07840221087cf7f2182891ea98d48db2b94e018321cb4ed807d9edffaeeccbd0be53034b9918b123a4
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Filesize
86KB
MD51847b02ff8f0e75922223d1e751c4870
SHA17f4b501c5734313813070ef07dd783cc0fe27df7
SHA25652c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78
SHA51245d4ac910f12036295bdfeed5d3b157440683478c7c4ad07840221087cf7f2182891ea98d48db2b94e018321cb4ed807d9edffaeeccbd0be53034b9918b123a4
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Filesize
86KB
MD51847b02ff8f0e75922223d1e751c4870
SHA17f4b501c5734313813070ef07dd783cc0fe27df7
SHA25652c33a2de00a80b138ab3e6b187420f5d2aa7a4c0f93ddef0a9b751247c94b78
SHA51245d4ac910f12036295bdfeed5d3b157440683478c7c4ad07840221087cf7f2182891ea98d48db2b94e018321cb4ed807d9edffaeeccbd0be53034b9918b123a4