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Analysis
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max time kernel
146s -
max time network
44s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
07/11/2022, 15:40
Static task
static1
Behavioral task
behavioral1
Sample
3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
Resource
win10v2004-20220812-en
General
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Target
3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
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Size
184KB
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MD5
04a894f696c11abeb77b5f845159b7f1
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SHA1
705bb4f77ef157b177fe5cfc75e406338b032173
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SHA256
3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a
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SHA512
a1042177f6d3f0bf079c5fbb37eeb8070c49da604d4ba6937f757b4d402bbae254f1f76adb024192dcfa55cc05f4b8732f4df0034a59705d523cc1e4491086cd
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SSDEEP
3072:MRAhhcsxgAJuK7bZD01GoI0ON27Usy3/ROzTU9YMftqr40hteO4UNuTEHEgi+IgT:MRAhhJxX7bNIAROzTuft840hkkPJFT
Malware Config
Signatures
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Modifies system executable filetype association 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1116 svchost.exe -
Modifies Installed Components in the registry 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983} svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msarn32.exe" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983} 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msarn32.exe" 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" svchost.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\msarn32.exe 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe File opened for modification C:\Windows\SysWOW64\msarn32.exe 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe File created C:\Windows\SysWOW64\concp32.exe 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe File opened for modification C:\Windows\SysWOW64\concp32.exe 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe File created C:\Windows\SysWOW64\vcl32.exe 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\svchost.exe 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe File opened for modification C:\Windows\svchost.exe 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe -
Modifies registry class 12 IoCs
description ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 484d73a6526064362e57006fcb4a3d32 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983} svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983} 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f svchost.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226 svchost.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4 svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DB788670-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 112 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 112 wrote to memory of 1116 112 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe 27 PID 112 wrote to memory of 1116 112 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe 27 PID 112 wrote to memory of 1116 112 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe 27 PID 112 wrote to memory of 1116 112 3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe"C:\Users\Admin\AppData\Local\Temp\3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe"1⤵
- Modifies system executable filetype association
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:112 -
C:\Windows\svchost.exeC:\Windows\svchost.exe2⤵
- Modifies system executable filetype association
- Executes dropped EXE
- Modifies Installed Components in the registry
- Adds Run key to start application
- Modifies registry class
PID:1116
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
188KB
MD55399c4b7601839d8e99e3cfcc663e4d0
SHA1d365a7c237a555fbfe26e8148b06d4c89a41c304
SHA2567abf826083369ef17d37c8ff25cb6f386749975816e1f744301508d049b9037e
SHA512c6f5f4943440372773cef86154d601dbf05f0c73c1eaf8d4dd83dd396db4f94526c86b7da6dac55604c996720e33c64477d06641257aa36f44edc2b37028c038