d0e61d25a911824250622ff4b8b7b27360473894b450ad66a22f7160ad2efe92

Analysis

max time kernel
107s
max time network
179s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 03:38

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General

Target
TaijiName/MSCAL.dll
Size 87KB
Sample240419-d7atvsff56
SHA256 6c61f77d159854344e7657a51c197bd646961a830a78740bc5fcd211c45e36e2
MD5 02e93a61373dd740ff0a49c4c5b6c7b9
SHA1 c96bed929d831d44dfb5c2f9f52d62ea33678d0d
SHA512 be65cb896be3d792a259a1615c176678052bdfe611ae0dbd1c45a825de25708b2ef23460dacda163ec4fb8873fb0def5a646af424cc77a754828a8b3a6c84a83
SSDEEP 1536:pouzxk/uHGTMGGt8RfFPeeUr0UG4oQ8Sle/es09DqvTLMTWsi9l:poum/uCMGs8ZFPevoUG4oQnY09cTLMTy
MD5 SHA1 SHA512 SSDEEP

Score

1^/10

Malware Config

Signatures

Modifies registry class 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\MiscStatus\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E27C92E-1264-101C-8A2F-040224009C02}\7.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E27C92C-1264-101C-8A2F-040224009C02}\TypeLib\ = "{8E27C92E-1264-101C-8A2F-040224009C02}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSCAL.Calendar.7\CLSID\ = "{8E27C92B-1264-101C-8A2F-040224009C02}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E27C92D-1264-101C-8A2F-040224009C02}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\VersionIndependentProgID\ = "MSCAL.Calendar"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E27C92C-1264-101C-8A2F-040224009C02}\ = "ICalendar"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E27C92C-1264-101C-8A2F-040224009C02}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E27C92D-1264-101C-8A2F-040224009C02}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E27C92E-1264-101C-8A2F-040224009C02}\7.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E27C92D-1264-101C-8A2F-040224009C02}\TypeLib\Version = "7.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E27C92D-1264-101C-8A2F-040224009C02}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92F-1264-101C-8A2F-040224009C02}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\TaijiName\\MSCAL.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E27C92C-1264-101C-8A2F-040224009C02}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E27C92C-1264-101C-8A2F-040224009C02}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\ = "Calendar Control 8.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E27C92D-1264-101C-8A2F-040224009C02}\TypeLib\ = "{8E27C92E-1264-101C-8A2F-040224009C02}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSCAL.Calendar	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSCAL.Calendar\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E27C92E-1264-101C-8A2F-040224009C02}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E27C92E-1264-101C-8A2F-040224009C02}\7.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E27C92C-1264-101C-8A2F-040224009C02}\TypeLib\Version = "7.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E27C92E-1264-101C-8A2F-040224009C02}\7.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\TaijiName"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\Version\ = "7.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E27C92C-1264-101C-8A2F-040224009C02}\ = "ICalendar"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E27C92C-1264-101C-8A2F-040224009C02}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E27C92C-1264-101C-8A2F-040224009C02}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSCAL.Calendar.7\ = "Calendar Control 8.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSCAL.Calendar.7\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\TypeLib\ = "{8E27C92E-1264-101C-8A2F-040224009C02}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\Version	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92F-1264-101C-8A2F-040224009C02}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E27C92E-1264-101C-8A2F-040224009C02}\7.0\FLAGS\ = "2"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E27C92C-1264-101C-8A2F-040224009C02}\TypeLib\Version = "7.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E27C92D-1264-101C-8A2F-040224009C02}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92F-1264-101C-8A2F-040224009C02}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\Insertable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\MiscStatus\1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\ToolboxBitmap32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\TaijiName\\MSCAL.dll, 1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E27C92D-1264-101C-8A2F-040224009C02}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSCAL.Calendar\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSCAL.Calendar\CurVer\ = "MSCAL.Calendar.7"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92F-1264-101C-8A2F-040224009C02}\ = "Calendar General Propery Page Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSCAL.Calendar\Insertable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E27C92D-1264-101C-8A2F-040224009C02}\ = "DCalendarEvents"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E27C92D-1264-101C-8A2F-040224009C02}\TypeLib\Version = "7.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92F-1264-101C-8A2F-040224009C02}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\Implemented Categories\{7DD95801-9882-11CF-9FA9-00AA006C42C4}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E27C92E-1264-101C-8A2F-040224009C02}\7.0\ = "Microsoft Calendar Control 8.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSCAL.Calendar.7	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\MiscStatus	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\ToolboxBitmap32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92F-1264-101C-8A2F-040224009C02}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E27C92E-1264-101C-8A2F-040224009C02}\7.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E27C92D-1264-101C-8A2F-040224009C02}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E27C92D-1264-101C-8A2F-040224009C02}\TypeLib\ = "{8E27C92E-1264-101C-8A2F-040224009C02}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4792 wrote to memory of 220	4792	regsvr32.exe	90
PID 4792 wrote to memory of 220	4792	regsvr32.exe	90
PID 4792 wrote to memory of 220	4792	regsvr32.exe	90

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\TaijiName\MSCAL.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4792
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\TaijiName\MSCAL.dll
  2⤵
  - Modifies registry class
  PID:220

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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