Analysis
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max time kernel
42s -
max time network
50s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
27-04-2022 18:23
Static task
static1
Behavioral task
behavioral1
Sample
8e2538a244ae726aeefdd4b6af84fe587d2a0070d5dfa8d27da73b2e74e89d65.dll
Resource
win7-20220414-en
windows7_x64
0 signatures
0 seconds
General
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Target
8e2538a244ae726aeefdd4b6af84fe587d2a0070d5dfa8d27da73b2e74e89d65.dll
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Size
216KB
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MD5
7935bc141a35f7978a4a2014ba5f10b7
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SHA1
c0bfd3ec7ba8d8223f5e2433c8603060d81b19d3
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SHA256
8e2538a244ae726aeefdd4b6af84fe587d2a0070d5dfa8d27da73b2e74e89d65
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SHA512
b4d0e8f860b18d409f7e6db9e4bd6b7419d0b2e62bbd67d2fa29f244d039f4f6076e33042ea55a67829737120449fd6088b586d3286170af885181252786a448
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs
BHOs are DLL modules which act as plugins for Internet Explorer.
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Modifies registry class 56 IoCs
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\MSVPS.MSVPSApp\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB2963E8-6425-4723-809D-7D8785740590}\ = "RDL Rolex" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6F9ED24F-A59A-4791-8A25-F9121C29187A}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6F9ED24F-A59A-4791-8A25-F9121C29187A}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB2963E8-6425-4723-809D-7D8785740590}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6F9ED24F-A59A-4791-8A25-F9121C29187A}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB2963E8-6425-4723-809D-7D8785740590}\ProgID\ = "RDL.Rolex" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB2963E8-6425-4723-809D-7D8785740590}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB2963E8-6425-4723-809D-7D8785740590}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6F9ED24F-A59A-4791-8A25-F9121C29187A}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6F9ED24F-A59A-4791-8A25-F9121C29187A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049}\TypeLib\ = "{6F9ED24F-A59A-4791-8A25-F9121C29187A}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59}\TypeLib\ = "{6F9ED24F-A59A-4791-8A25-F9121C29187A}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6F9ED24F-A59A-4791-8A25-F9121C29187A}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB2963E8-6425-4723-809D-7D8785740590}\VersionIndependentProgID\ = "RDL.Rolex" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6F9ED24F-A59A-4791-8A25-F9121C29187A}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049}\ = "_IafnvEvents" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59}\ = "Iafnv" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049}\ = "_IafnvEvents" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59}\ = "Iafnv" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB2963E8-6425-4723-809D-7D8785740590}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB2963E8-6425-4723-809D-7D8785740590}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6F9ED24F-A59A-4791-8A25-F9121C29187A}\1.0\ = "afnv TL" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\MSVPS.MSVPSApp\ = "RDL" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB2963E8-6425-4723-809D-7D8785740590}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8e2538a244ae726aeefdd4b6af84fe587d2a0070d5dfa8d27da73b2e74e89d65.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB2963E8-6425-4723-809D-7D8785740590}\TypeLib\ = "{6F9ED24F-A59A-4791-8A25-F9121C29187A}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049}\TypeLib\ = "{6F9ED24F-A59A-4791-8A25-F9121C29187A}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\MSVPS.MSVPSApp regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\MSVPS.MSVPSApp\CLSID\ = "{EB2963E8-6425-4723-809D-7D8785740590}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6F9ED24F-A59A-4791-8A25-F9121C29187A}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\MSVPS.MSVPSApp\CurVer\ = "RDL.Rolex" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6F9ED24F-A59A-4791-8A25-F9121C29187A}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8e2538a244ae726aeefdd4b6af84fe587d2a0070d5dfa8d27da73b2e74e89d65.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\MSVPS.MSVPSApp\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB2963E8-6425-4723-809D-7D8785740590} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59}\TypeLib\ = "{6F9ED24F-A59A-4791-8A25-F9121C29187A}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EB2963E8-6425-4723-809D-7D8785740590}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{21157F64-2CA3-48FC-B33F-4B010D58B049}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A1B37CE5-DD64-4AE2-953C-F1A75CAC1E59} regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
regsvr32.exedescription pid process target process PID 1904 wrote to memory of 1896 1904 regsvr32.exe regsvr32.exe PID 1904 wrote to memory of 1896 1904 regsvr32.exe regsvr32.exe PID 1904 wrote to memory of 1896 1904 regsvr32.exe regsvr32.exe PID 1904 wrote to memory of 1896 1904 regsvr32.exe regsvr32.exe PID 1904 wrote to memory of 1896 1904 regsvr32.exe regsvr32.exe PID 1904 wrote to memory of 1896 1904 regsvr32.exe regsvr32.exe PID 1904 wrote to memory of 1896 1904 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\8e2538a244ae726aeefdd4b6af84fe587d2a0070d5dfa8d27da73b2e74e89d65.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\8e2538a244ae726aeefdd4b6af84fe587d2a0070d5dfa8d27da73b2e74e89d65.dll2⤵
- Modifies registry class