Analysis
- max time kernel
92s - max time network
123s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system - submitted
15/02/2024, 09:26
Behavioral task
behavioral1
Sample
9d8aad7f09320f38361cb73b68102744.dll
Resource
win7-20231215-en
windows7-x64
4 signatures
150 seconds
General
- Target 9d8aad7f09320f38361cb73b68102744.dll
- Size 62KB
- Sample240215-lelpnaea99
- SHA256 c9242f7df17b0a3e170bd895f04f139b1d6375eb380984d6c0536768bbf183ea
- MD5 9d8aad7f09320f38361cb73b68102744
- SHA1 493200bbd8687d43cf54631e68414fec65064dfb
- SHA512 b9201dba2cb979488ff607dd44f963514d761e9fc89eb9e295e3c051dfe693e3fb1de50e33ae5ea66a056d196c5405c4431c43175ef69d3cb11f6c8a41fce412
- SSDEEP 1536:f2ymNWUF5WqWm6Xj5emNv5m9FBL1EBaSAmhRWWH0:f2yWbeqWpFeWRUFF1EBaSAmhRWX
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
-
resource yara_rule behavioral2/memory/4176-0-0x0000000010000000-0x0000000010029000-memory.dmp upx - 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\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75} regsvr32.exe - Modifies registry class 51 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{00476C87-A276-49BF-86BC-FF005732430B}\1.0\ = "solution 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\solution.solution\ = "solution Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{00476C87-A276-49BF-86BC-FF005732430B}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979}\ = "Isolution" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\solution.solution regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{00476C87-A276-49BF-86BC-FF005732430B}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}\ProgID\ = "solution.solution.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\solution.solution\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}\VersionIndependentProgID\ = "solution.solution" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979}\TypeLib\ = "{00476C87-A276-49BF-86BC-FF005732430B}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}\TypeLib\ = "{00476C87-A276-49BF-86BC-FF005732430B}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{E81CF86B-F683-422A-B742-3F2427EA9D6A}\ = "solution" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}\AppID = "{E81CF86B-F683-422A-B742-3F2427EA9D6A}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\solution.solution.1\CLSID\ = "{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}\ = "solution Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{00476C87-A276-49BF-86BC-FF005732430B}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{00476C87-A276-49BF-86BC-FF005732430B}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{00476C87-A276-49BF-86BC-FF005732430B}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{00476C87-A276-49BF-86BC-FF005732430B}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{E81CF86B-F683-422A-B742-3F2427EA9D6A} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\solution.solution\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\solution.solution.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979}\ = "Isolution" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\solution.DLL regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\solution.DLL\AppID = "{E81CF86B-F683-422A-B742-3F2427EA9D6A}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979}\TypeLib\ = "{00476C87-A276-49BF-86BC-FF005732430B}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\solution.solution.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\solution.solution\CLSID\ = "{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\solution.solution\CurVer\ = "solution.solution.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{00476C87-A276-49BF-86BC-FF005732430B} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{00476C87-A276-49BF-86BC-FF005732430B}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{00476C87-A276-49BF-86BC-FF005732430B}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9d8aad7f09320f38361cb73b68102744.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\solution.solution.1\ = "solution Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{892B2785-B0D0-4AA2-AE6A-0ED60B00A979}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9d8aad7f09320f38361cb73b68102744.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99C6D1BB-7555-474C-91DA-D8FB62A9CC75} regsvr32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4276 wrote to memory of 4176 4276 regsvr32.exe 84 PID 4276 wrote to memory of 4176 4276 regsvr32.exe 84 PID 4276 wrote to memory of 4176 4276 regsvr32.exe 84
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\9d8aad7f09320f38361cb73b68102744.dll1⤵
- Suspicious use of WriteProcessMemory
PID:4276 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\9d8aad7f09320f38361cb73b68102744.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:4176
-