Analysis
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max time kernel
16s -
max time network
31s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
04-12-2022 13:28
Static task
static1
Behavioral task
behavioral1
Sample
f8303ac8f647b5d2c5cb375c77b3f8ccefe24e3f6641c1b890210db5f741190a.dll
Resource
win7-20221111-en
windows7-x64
3 signatures
150 seconds
General
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Target
f8303ac8f647b5d2c5cb375c77b3f8ccefe24e3f6641c1b890210db5f741190a.dll
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Size
84KB
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MD5
70c97f504d892080af63693970c08263
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SHA1
60a0a8ddaec132fb8021cebc7b298b110ea729f5
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SHA256
f8303ac8f647b5d2c5cb375c77b3f8ccefe24e3f6641c1b890210db5f741190a
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SHA512
364a22ee8a178b24ea2fb8db8e6d8d2b6121b117dac04af7857562e8cc220e9392c1829fd537ca5218ab73dce6ab7fb8ae595a069ef3290c8a028d285eabc0d0
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SSDEEP
768:wIFAbZzh6nlW3s5aX+dA5apd5JV9G1sjuTdNNSesRPR0ONiB9//Zw52z4ucoxtBt:wIFiuW3sEAxpk1KuTdN4kZWmooli5W
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\{FFFFFCF1-4B15-11D1-ABED-709549C10000} regsvr32.exe -
Modifies registry class 42 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FFFFFCF1-4B15-11D1-ABED-709549C10000}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FFFFFCF1-4B15-11D1-ABED-709549C10000}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FFFFFCF1-4B15-11D1-ABED-709549C10000}\VersionIndependentProgID\ = "Microsoft.Microsoft" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FFFFFCF1-4B15-11D1-ABED-709549C10000}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f8303ac8f647b5d2c5cb375c77b3f8ccefe24e3f6641c1b890210db5f741190a.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FFFFFCF1-4B15-11D1-ABED-709549C10000}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FFFFFCF1-4B15-11D1-ABED-709549C10000}\ = "Microsoft Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "Microsoft.Microsoft.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FFFFFCF1-4B15-11D1-ABED-709549C10000} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\ = "IIEHlprObj" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib\ = "{CE7C3CE2-4B15-11D1-ABED-709549C10000}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "Microsoft Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FFFFFCF1-4B15-11D1-ABED-709549C10000}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FFFFFCF1-4B15-11D1-ABED-709549C10000}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{FFFFFCF1-4B15-11D1-ABED-709549C10000}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f8303ac8f647b5d2c5cb375c77b3f8ccefe24e3f6641c1b890210db5f741190a.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\ = "IIEHlprObj" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib\ = "{CE7C3CE2-4B15-11D1-ABED-709549C10000}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FFFFFCF1-4B15-11D1-ABED-709549C10000}\ProgID\ = "Microsoft.Microsoft.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\ = "Microsoft 2.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "Microsoft Class" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1228 wrote to memory of 2000 1228 regsvr32.exe 28 PID 1228 wrote to memory of 2000 1228 regsvr32.exe 28 PID 1228 wrote to memory of 2000 1228 regsvr32.exe 28 PID 1228 wrote to memory of 2000 1228 regsvr32.exe 28 PID 1228 wrote to memory of 2000 1228 regsvr32.exe 28 PID 1228 wrote to memory of 2000 1228 regsvr32.exe 28 PID 1228 wrote to memory of 2000 1228 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\f8303ac8f647b5d2c5cb375c77b3f8ccefe24e3f6641c1b890210db5f741190a.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1228 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\f8303ac8f647b5d2c5cb375c77b3f8ccefe24e3f6641c1b890210db5f741190a.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2000
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