Analysis
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max time kernel
39s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
29-10-2022 18:41
Static task
static1
Behavioral task
behavioral1
Sample
a7cc133b6a5febcdef20ca19475c162d709bd66b7cbf0b5bbd4855272d290ca0.dll
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
a7cc133b6a5febcdef20ca19475c162d709bd66b7cbf0b5bbd4855272d290ca0.dll
Resource
win10v2004-20220901-en
General
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Target
a7cc133b6a5febcdef20ca19475c162d709bd66b7cbf0b5bbd4855272d290ca0.dll
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Size
32KB
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MD5
1259d430375466a5d5c9478802bd9803
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SHA1
2a2458d6cd2e575a9ef9a34f746232f1536f1d68
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SHA256
a7cc133b6a5febcdef20ca19475c162d709bd66b7cbf0b5bbd4855272d290ca0
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SHA512
b0635e3bcd655af3cd47182412809783b18ebd1d04f78195482dc662cc7e7bb3043debad150660c7bcfaa84b07190b53bb38357449fe57cfb869518658fc8d95
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SSDEEP
96:5z+ZQDZBSwFpmPmvWxp7vPTfsa/M9MAvxBEBhImjv3hg9:5hBSwFpmPXp7vbfp/jAsBRK9
Malware Config
Signatures
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Modifies registry class 45 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\VERSION regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\ProxyStubClsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\ = "_Encryptor" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\TypeLib\ = "{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\Implemented Categories\{40FC6ED5-2438-11CF-A3DB-080036F12502} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a7cc133b6a5febcdef20ca19475c162d709bd66b7cbf0b5bbd4855272d290ca0.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a7cc133b6a5febcdef20ca19475c162d709bd66b7cbf0b5bbd4855272d290ca0.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AESLib.Encryptor\ = "AESLib.Encryptor" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AESLib.Encryptor\Clsid\ = "{C0A6B38B-16A7-4374-BB51-0084087910CD}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\ProgID\ = "AESLib.Encryptor" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\ = "Encryptor" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\ = "_Encryptor" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\TypeLib\ = "{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AESLib.Encryptor regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\ = "AESLib.Encryptor" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E}\1.0\ = "AESLib" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{75E65591-8C7B-4BAB-998A-E69B58613746}\TypeLib\ = "{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\VERSION\ = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AESLib.Encryptor\Clsid regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C0A6B38B-16A7-4374-BB51-0084087910CD}\Implemented Categories regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TYPELIB\{A4D470F8-F00C-4B0E-9457-9CACC86BEF1E}\1.0\HELPDIR regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2024 wrote to memory of 1148 2024 regsvr32.exe 26 PID 2024 wrote to memory of 1148 2024 regsvr32.exe 26 PID 2024 wrote to memory of 1148 2024 regsvr32.exe 26 PID 2024 wrote to memory of 1148 2024 regsvr32.exe 26 PID 2024 wrote to memory of 1148 2024 regsvr32.exe 26 PID 2024 wrote to memory of 1148 2024 regsvr32.exe 26 PID 2024 wrote to memory of 1148 2024 regsvr32.exe 26
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\a7cc133b6a5febcdef20ca19475c162d709bd66b7cbf0b5bbd4855272d290ca0.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2024 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\a7cc133b6a5febcdef20ca19475c162d709bd66b7cbf0b5bbd4855272d290ca0.dll2⤵
- Modifies registry class
PID:1148
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