Analysis
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max time kernel
152s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
02-12-2022 17:19
Static task
static1
Behavioral task
behavioral1
Sample
7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe
Resource
win7-20221111-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe
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Size
139KB
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MD5
2cdedd0bdc5098767bb018b5b0960c10
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SHA1
9fbf3b551751110ab2b81f38b909422b2a4b9d1d
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SHA256
7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97
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SHA512
ab4ed1bcf804af2456a0beb0db2ee0b9ed3b0db5cdaa564209e9a6a20cdf03d507d164514106de7f4483627d629fdc26af3ab71b974be04b20c9e220ee795149
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SSDEEP
3072:0SYl9XS9GF7fT0CAippzvbRCdM8+/IinMRwD:h8XS9GF7JDpvQdM8+wg
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" yueidem.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe -
Executes dropped EXE 2 IoCs
pid Process 3588 yueidem.exe 5064 yueidem.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 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.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\yueidem = "C:\\Users\\Admin\\yueidem.exe /b" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /w" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /y" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /z" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /m" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /s" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /t" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /x" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /z" 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /i" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /h" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /v" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /o" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /e" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /r" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /q" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /d" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /n" yueidem.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /l" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /j" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /f" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /u" yueidem.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /g" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /p" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /c" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /a" yueidem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yueidem = "C:\\Users\\Admin\\yueidem.exe /k" yueidem.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 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum yueidem.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 yueidem.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.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 yueidem.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2116 set thread context of 4116 2116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 79 PID 3588 set thread context of 5064 3588 yueidem.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 4116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 4116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe 5064 yueidem.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 4116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 3588 yueidem.exe 5064 yueidem.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2116 wrote to memory of 4116 2116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 79 PID 2116 wrote to memory of 4116 2116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 79 PID 2116 wrote to memory of 4116 2116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 79 PID 2116 wrote to memory of 4116 2116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 79 PID 2116 wrote to memory of 4116 2116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 79 PID 2116 wrote to memory of 4116 2116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 79 PID 2116 wrote to memory of 4116 2116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 79 PID 2116 wrote to memory of 4116 2116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 79 PID 2116 wrote to memory of 4116 2116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 79 PID 4116 wrote to memory of 3588 4116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 80 PID 4116 wrote to memory of 3588 4116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 80 PID 4116 wrote to memory of 3588 4116 7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe 80 PID 3588 wrote to memory of 5064 3588 yueidem.exe 81 PID 3588 wrote to memory of 5064 3588 yueidem.exe 81 PID 3588 wrote to memory of 5064 3588 yueidem.exe 81 PID 3588 wrote to memory of 5064 3588 yueidem.exe 81 PID 3588 wrote to memory of 5064 3588 yueidem.exe 81 PID 3588 wrote to memory of 5064 3588 yueidem.exe 81 PID 3588 wrote to memory of 5064 3588 yueidem.exe 81 PID 3588 wrote to memory of 5064 3588 yueidem.exe 81 PID 3588 wrote to memory of 5064 3588 yueidem.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe"C:\Users\Admin\AppData\Local\Temp\7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2116 -
C:\Users\Admin\AppData\Local\Temp\7519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97.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:4116 -
C:\Users\Admin\yueidem.exe"C:\Users\Admin\yueidem.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3588 -
C:\Users\Admin\yueidem.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:5064
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
139KB
MD52cdedd0bdc5098767bb018b5b0960c10
SHA19fbf3b551751110ab2b81f38b909422b2a4b9d1d
SHA2567519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97
SHA512ab4ed1bcf804af2456a0beb0db2ee0b9ed3b0db5cdaa564209e9a6a20cdf03d507d164514106de7f4483627d629fdc26af3ab71b974be04b20c9e220ee795149
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Filesize
139KB
MD52cdedd0bdc5098767bb018b5b0960c10
SHA19fbf3b551751110ab2b81f38b909422b2a4b9d1d
SHA2567519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97
SHA512ab4ed1bcf804af2456a0beb0db2ee0b9ed3b0db5cdaa564209e9a6a20cdf03d507d164514106de7f4483627d629fdc26af3ab71b974be04b20c9e220ee795149
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Filesize
139KB
MD52cdedd0bdc5098767bb018b5b0960c10
SHA19fbf3b551751110ab2b81f38b909422b2a4b9d1d
SHA2567519fd5154db5bbc6741d7d309f9fae8f9a7aac1352fc73f4233ff58ca9abf97
SHA512ab4ed1bcf804af2456a0beb0db2ee0b9ed3b0db5cdaa564209e9a6a20cdf03d507d164514106de7f4483627d629fdc26af3ab71b974be04b20c9e220ee795149