Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
21-03-2024 16:19
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
dc123ee8f3ba2b3156e8069ed5565422.dll
Resource
win7-20240221-en
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
dc123ee8f3ba2b3156e8069ed5565422.dll
Resource
win10v2004-20240319-en
4 signatures
150 seconds
General
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Target
dc123ee8f3ba2b3156e8069ed5565422.dll
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Size
76KB
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MD5
dc123ee8f3ba2b3156e8069ed5565422
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SHA1
eed156addda4f0c8a22bd9a1619b72c7a4a4c222
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SHA256
842c9e08929b66a865afca9f0c0d0a0ce8514a4b6e4d69398a799a8384669269
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SHA512
3eaeb812a23bacd627db6644a43016bc1310f8df328a343694d1d7945ece5535d8b51ca0a1e0fbc33e28d1c043adad879c7a8d6f1449a82ebd786ded8b1c863b
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SSDEEP
1536:H2PTSSbXSd9zXpH5NfUiBuTJIhqU+fFKTLoRZec4:WPTSSbXSPtbuKTLoR
Score
6/10
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Tlist = "regsvr32 /s abskey.dll" regsvr32.exe -
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\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1} regsvr32.exe -
Modifies registry class 46 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\sos.sosHlpr regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\sos.sosHlpr\ = "sosHlpr Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\sos.sosHlpr.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\sos.sosHlpr\CurVer\ = "sos.sosHlpr.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972}\1.0\ = "Baidu 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}\ProgID\ = "sos.sosHlpr.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\sos.sosHlpr.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\sos.sosHlpr.1\ = "sosHlpr Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\sos.sosHlpr\CLSID\ = "{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}\ = "sosHlpr Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dc123ee8f3ba2b3156e8069ed5565422.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4}\TypeLib\ = "{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4}\ = "IBaiduHlpr" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\sos.sosHlpr\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}\TypeLib\ = "{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}\VersionIndependentProgID\ = "sos.sosHlpr" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dc123ee8f3ba2b3156e8069ed5565422.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4}\TypeLib\ = "{DB7F4BCA-E094-44C9-B1F8-B5AC0BC1A972}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\sos.sosHlpr.1\CLSID\ = "{00C104F7-0F5C-470C-ABCF-A5B2E70752F1}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\sos.sosHlpr\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4}\ = "IBaiduHlpr" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6EAD366A-19DB-46D6-8D24-337D424111D4}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1464 wrote to memory of 1800 1464 regsvr32.exe 28 PID 1464 wrote to memory of 1800 1464 regsvr32.exe 28 PID 1464 wrote to memory of 1800 1464 regsvr32.exe 28 PID 1464 wrote to memory of 1800 1464 regsvr32.exe 28 PID 1464 wrote to memory of 1800 1464 regsvr32.exe 28 PID 1464 wrote to memory of 1800 1464 regsvr32.exe 28 PID 1464 wrote to memory of 1800 1464 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\dc123ee8f3ba2b3156e8069ed5565422.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1464 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\dc123ee8f3ba2b3156e8069ed5565422.dll2⤵
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1800
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