Analysis
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max time kernel
152s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 15:35
Static task
static1
Behavioral task
behavioral1
Sample
a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe
Resource
win10v2004-20220812-en
General
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Target
a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe
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Size
276KB
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MD5
564d5f0122064605b6035f360dff54bb
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SHA1
7ed200f36f5f4a1e1f5b008b83b986b11fe28658
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SHA256
a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1
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SHA512
ef20a58c4e00d105ac198051d8e2ad99a47707f399a26f32eb0d7623eafd32a619ae6b80e5ecd459bbcfbb976f96b150238940c2709f9a5def1c6b2d585a0845
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SSDEEP
6144:MRAhhJxX7bNI5dvqPtQVhLp/mFgRXJW2EJELyUM78mQ9DP:UsAYSVhRmFgtKTUPmIP
Malware Config
Signatures
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Modifies system executable filetype association 2 TTPs 1 IoCs
Processes:
a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe -
Modifies Installed Components in the registry 2 TTPs 2 IoCs
Processes:
a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F8C9B10B-8B9A-11D5-EBA1-F78EEEEEE983} a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F8C9B10B-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msylc32.exe" a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe -
Drops file in System32 directory 6 IoCs
Processes:
a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exedescription ioc process File created C:\Windows\SysWOW64\vcl32.exe a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe File created C:\Windows\SysWOW64\msylc32.exe a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe File opened for modification C:\Windows\SysWOW64\msylc32.exe a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe File created C:\Windows\SysWOW64\concp32.exe a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe File opened for modification C:\Windows\SysWOW64\concp32.exe a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1340 3976 WerFault.exe a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe -
Modifies registry class 5 IoCs
Processes:
a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8C9B10B-8B9A-11D5-EBA1-F78EEEEEE983} a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8C9B10B-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8C9B10B-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9 a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F8C9B10B-8B9A-11D5-EBA1-F78EEEEEE983}\ax = b2b9e9cf0f4885baf9e16e5a13baa4bb a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exepid process 3976 a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe"C:\Users\Admin\AppData\Local\Temp\a4a7be11f3acf8c483a2745ff65098afc79966aaf9e7d009d6e2fa8953253cc1.exe"1⤵
- Modifies system executable filetype association
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:3976 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3976 -s 7482⤵
- Program crash
PID:1340
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3976 -ip 39761⤵PID:4708