Analysis
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max time kernel
25s -
max time network
44s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
06-12-2022 09:56
Static task
static1
Behavioral task
behavioral1
Sample
59f4db3e560f46286a6a5106b19e8fe838fecfc2fa43a74e30a62b9e09194cf0.dll
Resource
win7-20220812-en
windows7-x64
3 signatures
150 seconds
General
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Target
59f4db3e560f46286a6a5106b19e8fe838fecfc2fa43a74e30a62b9e09194cf0.dll
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Size
172KB
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MD5
d8f2eec2a503b7157049cfbb4cebc3d0
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SHA1
58a5109245655d3e1803aba7d599ec04830a2cab
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SHA256
59f4db3e560f46286a6a5106b19e8fe838fecfc2fa43a74e30a62b9e09194cf0
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SHA512
826897fb44a4094a5c6cc74d650e94adab8bbe29e41aec995539856afa8f6548df75fdba7f6cddf1f3442a214161be792b6b86fa6e42c60dab63680e7fe29681
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SSDEEP
3072:afTkBHgMvyyEH17Ve6S4Pavq0+f1a2mD2b8j4lf+7bAM1Zubmq9cff:2IBHgM6T17Ve6S4PP0+fUNDOjMXPabmf
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 3 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 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{4824F5B7-6AD7-3BC4-B0D3-0B97A2736CF9} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{4824F5B7-6AD7-3BC4-B0D3-0B97A2736CF9}\IExplore = "1" regsvr32.exe -
Modifies registry class 29 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A2C39CFE-DE89-3CD9-8610-DA729DD47D8A}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D}\ = "IDOMPeek" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4824F5B7-6AD7-3BC4-B0D3-0B97A2736CF9}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4824F5B7-6AD7-3BC4-B0D3-0B97A2736CF9}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\59f4db3e560f46286a6a5106b19e8fe838fecfc2fa43a74e30a62b9e09194cf0.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A2C39CFE-DE89-3CD9-8610-DA729DD47D8A}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\59f4db3e560f46286a6a5106b19e8fe838fecfc2fa43a74e30a62b9e09194cf0.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D}\TypeLib\ = "{A2C39CFE-DE89-3CD9-8610-DA729DD47D8A}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4824F5B7-6AD7-3BC4-B0D3-0B97A2736CF9}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A2C39CFE-DE89-3CD9-8610-DA729DD47D8A} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A2C39CFE-DE89-3CD9-8610-DA729DD47D8A}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D}\ = "IDOMPeek" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A2C39CFE-DE89-3CD9-8610-DA729DD47D8A}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A2C39CFE-DE89-3CD9-8610-DA729DD47D8A}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4824F5B7-6AD7-3BC4-B0D3-0B97A2736CF9}\ = "D" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A2C39CFE-DE89-3CD9-8610-DA729DD47D8A}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D}\TypeLib\ = "{A2C39CFE-DE89-3CD9-8610-DA729DD47D8A}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4824F5B7-6AD7-3BC4-B0D3-0B97A2736CF9} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A2C39CFE-DE89-3CD9-8610-DA729DD47D8A}\1.0\ = "LIB" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A2C39CFE-DE89-3CD9-8610-DA729DD47D8A}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A2C39CFE-DE89-3CD9-8610-DA729DD47D8A}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5A088A23-5100-3C33-A7FC-0408A18A130D}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1388 wrote to memory of 1476 1388 regsvr32.exe 26 PID 1388 wrote to memory of 1476 1388 regsvr32.exe 26 PID 1388 wrote to memory of 1476 1388 regsvr32.exe 26 PID 1388 wrote to memory of 1476 1388 regsvr32.exe 26 PID 1388 wrote to memory of 1476 1388 regsvr32.exe 26 PID 1388 wrote to memory of 1476 1388 regsvr32.exe 26 PID 1388 wrote to memory of 1476 1388 regsvr32.exe 26
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\59f4db3e560f46286a6a5106b19e8fe838fecfc2fa43a74e30a62b9e09194cf0.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1388 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\59f4db3e560f46286a6a5106b19e8fe838fecfc2fa43a74e30a62b9e09194cf0.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1476
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