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Analysis
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max time kernel
44s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
05/12/2022, 12:11
Static task
static1
Behavioral task
behavioral1
Sample
9425e0d8697ceb36d0e667753ecbe29e5608fae495280e8051e3d1ea30b10cf0.dll
Resource
win7-20220901-en
General
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Target
9425e0d8697ceb36d0e667753ecbe29e5608fae495280e8051e3d1ea30b10cf0.dll
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Size
554KB
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MD5
92fe469beed09fcc62b1ae682cef73e7
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SHA1
227255388d978a0b90ce6d5cf08b8ccba795859b
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SHA256
9425e0d8697ceb36d0e667753ecbe29e5608fae495280e8051e3d1ea30b10cf0
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SHA512
563cb5ad5e234aaa381b293818d7a4a782f4c8fd76e98768e0c1b905fb45763a91b2f2b15670101fe08bac1cb1f4c8015217e78fcc2cedc731d5925520a4df12
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SSDEEP
6144:kMKYZX5lazhSIJwPKBAwWQxc8gtFOFm1vP+lC+CuuI/xEw4paAP55slGbfYhC1:GIl+P5DWQxcmuexL4VPLslGbfYS
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 3 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD}\ = "fhblibP" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD}\NoExplorer = "1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD} regsvr32.exe -
Modifies registry class 64 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1408E208-2AC1-42D3-9F10-78A5B36E05AC} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\fhblib.DLL regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Pyqacukksasdt\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Pyqacukksasdt\CLSID\ = "{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{88450F0E-71F0-4B4F-A2FD-4AB473F05099}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{88450F0E-71F0-4B4F-A2FD-4AB473F05099}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9425e0d8697ceb36d0e667753ecbe29e5608fae495280e8051e3d1ea30b10cf0.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Pyqacukksasdt.1\CLSID\ = "{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Pyqacukksasdt\CurVer\ = "2" regsvr32.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1408E208-2AC1-42D3-9F10-78A5B36E05AC}\F = 3000 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB}\InProcServer32\ThreadingModel = "Both" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB}\NumMethods regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Pyqacukksasdt regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6975704D-B781-4D54-B4C7-79423EBA58E5}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9425e0d8697ceb36d0e667753ecbe29e5608fae495280e8051e3d1ea30b10cf0.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Myqacukksasdt.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{88450F0E-71F0-4B4F-A2FD-4AB473F05099}\ = "Myqacukksasdt Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{88450F0E-71F0-4B4F-A2FD-4AB473F05099}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6975704D-B781-4D54-B4C7-79423EBA58E5}\1.0\HELPDIR\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Myqacukksasdt\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB}\ProxyStubClsid32\ = "{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{039784BD-EE98-40D7-94CA-594FDD409B38}\ProxyStubClsid32\ = "{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD}\TypeLib\ = "{6975704D-B781-4D54-B4C7-79423EBA58E5}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{88450F0E-71F0-4B4F-A2FD-4AB473F05099}\AppID = "{4F17F936-1FA9-4FD5-81C4-144F1BE0C15A}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{039784BD-EE98-40D7-94CA-594FDD409B38}\TypeLib\ = "{6975704D-B781-4D54-B4C7-79423EBA58E5}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{039784BD-EE98-40D7-94CA-594FDD409B38}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Myqacukksasdt\CLSID\ = "{88450F0E-71F0-4B4F-A2FD-4AB473F05099}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Pyqacukksasdt.1\ = "fhblibA Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Myqacukksasdt.1\CLSID\ = "{88450F0E-71F0-4B4F-A2FD-4AB473F05099}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD}\VersionIndependentProgID\ = "fhblib.AClass" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{88450F0E-71F0-4B4F-A2FD-4AB473F05099} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{88450F0E-71F0-4B4F-A2FD-4AB473F05099}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{4F17F936-1FA9-4FD5-81C4-144F1BE0C15A} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6975704D-B781-4D54-B4C7-79423EBA58E5}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{4F17F936-1FA9-4FD5-81C4-144F1BE0C15A}\ = "fhblib" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Myqacukksasdt.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{88450F0E-71F0-4B4F-A2FD-4AB473F05099}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Myqacukksasdt regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{88450F0E-71F0-4B4F-A2FD-4AB473F05099}\ProgID\ = "fhblib.BClass.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{88450F0E-71F0-4B4F-A2FD-4AB473F05099}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{039784BD-EE98-40D7-94CA-594FDD409B38}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Myqacukksasdt.1\ = "fhblibB Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Myqacukksasdt\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{039784BD-EE98-40D7-94CA-594FDD409B38} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Pyqacukksasdt\ = "fhblibA Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6975704D-B781-4D54-B4C7-79423EBA58E5}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{88450F0E-71F0-4B4F-A2FD-4AB473F05099}\VersionIndependentProgID\ = "fhblib.BClass" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\epxjhjzrabrlgts.Myqacukksasdt\CurVer\ = "3" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{175D5F5E-C48B-43AB-8D84-5501BD7D6BBB}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{039784BD-EE98-40D7-94CA-594FDD409B38}\TypeLib\ = "{6975704D-B781-4D54-B4C7-79423EBA58E5}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AB7A2E0A-AB80-4AC1-8ACC-A7E8873BBAAD}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9425e0d8697ceb36d0e667753ecbe29e5608fae495280e8051e3d1ea30b10cf0.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{039784BD-EE98-40D7-94CA-594FDD409B38} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{039784BD-EE98-40D7-94CA-594FDD409B38}\ = "IMyqacukksasdt" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2028 wrote to memory of 948 2028 regsvr32.exe 27 PID 2028 wrote to memory of 948 2028 regsvr32.exe 27 PID 2028 wrote to memory of 948 2028 regsvr32.exe 27 PID 2028 wrote to memory of 948 2028 regsvr32.exe 27 PID 2028 wrote to memory of 948 2028 regsvr32.exe 27 PID 2028 wrote to memory of 948 2028 regsvr32.exe 27 PID 2028 wrote to memory of 948 2028 regsvr32.exe 27
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\9425e0d8697ceb36d0e667753ecbe29e5608fae495280e8051e3d1ea30b10cf0.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\9425e0d8697ceb36d0e667753ecbe29e5608fae495280e8051e3d1ea30b10cf0.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:948
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