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Analysis
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max time kernel
3s -
max time network
34s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
02/12/2022, 18:40
Static task
static1
Behavioral task
behavioral1
Sample
b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2.dll
Resource
win7-20221111-en
4 signatures
150 seconds
General
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Target
b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2.dll
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Size
120KB
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MD5
459a420c6a00c9a01cc646259d96c843
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SHA1
417868f88afb248f588071bf6c9e5229d8f7ebe9
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SHA256
b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2
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SHA512
3edb50a1ee6d5e27978ed7f9d84396e7ab89d361a20889087756961bf6a3f1a1ef07e9447efe8eb329d174290a72c41b9b275e85db111027c66e516179f2e217
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SSDEEP
1536:DiGJVY0NSk4lTy9ibUhl3kvNCGh0yJUlCzymm2S9Rrp7qE0Bs62:nVY0Nz4lTy7lsNhDJUlCzyUw9qE0d2
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 1 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\{2F83CF52-08C7-42BE-9F8D-12613FF45523} regsvr32.exe -
Modifies registry class 42 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\ = "IEHlprObj Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{2F83CF52-08C7-42BE-9F8D-12613FF45523}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\ = "IIEHlprObj" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\TypeLib\ = "{2F83CF58-08C7-42BE-9F8D-12613FF45523}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\ = "IIEHlprObj" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523}\1.0\ = "IEHelper 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\ProgID\ = "IEHlprObj.IEHlprObj.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2F83CF58-08C7-42BE-9F8D-12613FF45523} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2F83CF52-08C7-42BE-9F8D-12613FF45523}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F83CF51-08C7-42BE-9F8D-12613FF45523}\TypeLib\ = "{2F83CF58-08C7-42BE-9F8D-12613FF45523}" regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1348 regsvr32.exe 1348 regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1416 wrote to memory of 1348 1416 regsvr32.exe 28 PID 1416 wrote to memory of 1348 1416 regsvr32.exe 28 PID 1416 wrote to memory of 1348 1416 regsvr32.exe 28 PID 1416 wrote to memory of 1348 1416 regsvr32.exe 28 PID 1416 wrote to memory of 1348 1416 regsvr32.exe 28 PID 1416 wrote to memory of 1348 1416 regsvr32.exe 28 PID 1416 wrote to memory of 1348 1416 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1416 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\b02db5b1dd45fbfc3be8821ddbcd92c284c5db44f127c58f127c2535c5a035b2.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:1348
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