Analysis
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max time kernel
155s -
max time network
184s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
01/12/2022, 22:58
Static task
static1
Behavioral task
behavioral1
Sample
a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe
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Size
88KB
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MD5
4bc6f92dd1cb900b790f4b359a9b9c97
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SHA1
77cb480180529b34a8b809e4615f8b72a549cbba
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SHA256
a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0
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SHA512
01c44cbf4a5d7e378182cba3e87117d92ab4495e45c52b1ff42e68cb1b440ccbd1703d93098c6fb2f84a893881db11d7e70b92f7a20a88da65ee2c6a0e4b9522
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SSDEEP
1536:AMduFG3uG288FXaIlTxmpQxAwHz1qQU37bmxzzYj8pizy4LTVRG8dmNmS/:qFGl8FXaCdmpQxAwHz1qQGfmxzzYj8p+
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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yieuje.exe -
Executes dropped EXE 1 IoCs
pid Process 4256 yieuje.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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /p" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /k" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /a" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /i" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /x" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /e" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /c" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /g" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /n" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /b" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /u" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /h" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /d" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /o" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /s" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /f" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /w" a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /y" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /v" yieuje.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /w" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /t" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /m" yieuje.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /q" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /z" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /r" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /j" yieuje.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieuje = "C:\\Users\\Admin\\yieuje.exe /l" yieuje.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 2204 a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe 2204 a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe 4256 yieuje.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2204 a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe 4256 yieuje.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2204 wrote to memory of 4256 2204 a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe 83 PID 2204 wrote to memory of 4256 2204 a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe 83 PID 2204 wrote to memory of 4256 2204 a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.exe"C:\Users\Admin\AppData\Local\Temp\a87eee3f351e2be60eb1a83e94335dc91429d756e156cf8a6e4af37b60d106f0.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:2204 -
C:\Users\Admin\yieuje.exe"C:\Users\Admin\yieuje.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:4256
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
88KB
MD5bffb2c1fb1f655a45afcbee29d9ac7a4
SHA16b936f5690a0f22d9c3ae545a0e99f251d47da8d
SHA2566e495e146b34ffccf871e667e1e40df11d2a248418b9d704b2ec59b721b63be9
SHA512d009813c30ce12c11de50d83b22eb6c11a3c7d3969902ea6ed69bb4549b87f2e005cb64ebf3d37df40c68f23b5013b8f05b3de89d47833c605d809c1b34b3eb0
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Filesize
88KB
MD5bffb2c1fb1f655a45afcbee29d9ac7a4
SHA16b936f5690a0f22d9c3ae545a0e99f251d47da8d
SHA2566e495e146b34ffccf871e667e1e40df11d2a248418b9d704b2ec59b721b63be9
SHA512d009813c30ce12c11de50d83b22eb6c11a3c7d3969902ea6ed69bb4549b87f2e005cb64ebf3d37df40c68f23b5013b8f05b3de89d47833c605d809c1b34b3eb0