Analysis
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max time kernel
254s -
max time network
336s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
03/12/2022, 17:23
Static task
static1
Behavioral task
behavioral1
Sample
f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
2 signatures
150 seconds
General
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Target
f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe
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Size
256KB
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MD5
0d4cdf5cf99a75ac6d6393afc770e050
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SHA1
de9983f3caec9e298ca3d0c699aee80b93e19aa2
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SHA256
f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df
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SHA512
bfd8dbfff49b2f8b91a6aa61ce11d1b3476a0de7d0adc4bdfea07a6abefb5c8ab5d7e64c8437511f386279c39ce2d2c5573b94f2bcf1ae44a76bfd73d0fdee62
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SSDEEP
6144:ev7avoNymi+7eeyz2P9NnnnFCpImnTZygoHlKnvmb7/D26UBnmbLBXSG:eGvoNymi+7eOP9anTZygoHlKnvmb7/Dr
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-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yuiwia.exe -
Executes dropped EXE 1 IoCs
pid Process 764 yuiwia.exe -
Loads dropped DLL 2 IoCs
pid Process 512 f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe 512 f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe -
Adds Run key to start application 2 TTPs 45 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /Z" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /r" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /j" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /J" yuiwia.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /h" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /P" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /B" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /L" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /w" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /O" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /y" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /Y" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /F" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /i" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /H" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /u" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /x" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /s" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /I" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /U" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /Y" f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /W" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /q" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /E" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /a" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /C" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /l" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /o" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /X" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /m" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /e" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /d" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /f" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /v" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /p" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /N" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /c" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /n" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /Q" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /T" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /t" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /k" yuiwia.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuiwia = "C:\\Users\\Admin\\yuiwia.exe /S" yuiwia.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 512 f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe 764 yuiwia.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 512 f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe 764 yuiwia.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 512 wrote to memory of 764 512 f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe 28 PID 512 wrote to memory of 764 512 f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe 28 PID 512 wrote to memory of 764 512 f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe 28 PID 512 wrote to memory of 764 512 f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe"C:\Users\Admin\AppData\Local\Temp\f646d1901a7f6c7d9abb558373309fa0067ca4080533b9530a72928ac362f1df.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:512 -
C:\Users\Admin\yuiwia.exe"C:\Users\Admin\yuiwia.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:764
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
256KB
MD5dfc2e1572bfa06911b83c5854b20e5f7
SHA117908d7d70267bd551ed46d7ae3d02d4c1249239
SHA2566c0209cf52b95cea2312b47c82232cbadf9293648278293f948a0647b66d3305
SHA5129c53849c5e911c1796ea00bb21a4fa5716891e25fb01f7f8f50cfc9521ebc91652307c6ab7dd06793f569d0c37761bb1b355d77260f5d77ba7a6c2d9aaeaf0bf
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Filesize
256KB
MD5dfc2e1572bfa06911b83c5854b20e5f7
SHA117908d7d70267bd551ed46d7ae3d02d4c1249239
SHA2566c0209cf52b95cea2312b47c82232cbadf9293648278293f948a0647b66d3305
SHA5129c53849c5e911c1796ea00bb21a4fa5716891e25fb01f7f8f50cfc9521ebc91652307c6ab7dd06793f569d0c37761bb1b355d77260f5d77ba7a6c2d9aaeaf0bf
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Filesize
256KB
MD5dfc2e1572bfa06911b83c5854b20e5f7
SHA117908d7d70267bd551ed46d7ae3d02d4c1249239
SHA2566c0209cf52b95cea2312b47c82232cbadf9293648278293f948a0647b66d3305
SHA5129c53849c5e911c1796ea00bb21a4fa5716891e25fb01f7f8f50cfc9521ebc91652307c6ab7dd06793f569d0c37761bb1b355d77260f5d77ba7a6c2d9aaeaf0bf
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Filesize
256KB
MD5dfc2e1572bfa06911b83c5854b20e5f7
SHA117908d7d70267bd551ed46d7ae3d02d4c1249239
SHA2566c0209cf52b95cea2312b47c82232cbadf9293648278293f948a0647b66d3305
SHA5129c53849c5e911c1796ea00bb21a4fa5716891e25fb01f7f8f50cfc9521ebc91652307c6ab7dd06793f569d0c37761bb1b355d77260f5d77ba7a6c2d9aaeaf0bf