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Analysis
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max time kernel
112s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
02/12/2022, 17:36
Static task
static1
Behavioral task
behavioral1
Sample
b1f71139a8f6bbef06be19ec823e806967ac5ef5c622d3cc225322991d6806cf.dll
Resource
win7-20221111-en
3 signatures
150 seconds
General
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Target
b1f71139a8f6bbef06be19ec823e806967ac5ef5c622d3cc225322991d6806cf.dll
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Size
58KB
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MD5
3221c2144e6dea8a529cdb4c5c591fe1
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SHA1
39c3432d9c5750187eeb767ded0c3ff3db7d8a21
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SHA256
b1f71139a8f6bbef06be19ec823e806967ac5ef5c622d3cc225322991d6806cf
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SHA512
2195af0ff0af13a1a83e37fb336c4dafe9eb3df112f04082dea1b9d6b10d4ce90727c134fa722c6988c1313d69e159295415a959b8503cbb3d64cd293f36c878
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SSDEEP
768:7DfN9wiAxAfgsA83/hL9sWx2H5GlEDEn2OqozpmaNWl7y3UEEZZX7:7DHwiAlypsWI0HvrWl7y3Ut
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8}\NoExplorer = "1" regsvr32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b1f71139a8f6bbef06be19ec823e806967ac5ef5c622d3cc225322991d6806cf.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D0AA9EC3-AF1F-433f-9A39-DC0387CB5CD8}\ = "DealCabby" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 796 wrote to memory of 4316 796 regsvr32.exe 81 PID 796 wrote to memory of 4316 796 regsvr32.exe 81 PID 796 wrote to memory of 4316 796 regsvr32.exe 81
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\b1f71139a8f6bbef06be19ec823e806967ac5ef5c622d3cc225322991d6806cf.dll1⤵
- Suspicious use of WriteProcessMemory
PID:796 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\b1f71139a8f6bbef06be19ec823e806967ac5ef5c622d3cc225322991d6806cf.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:4316
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