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Analysis
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max time kernel
89s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/01/2023, 21:31
Static task
static1
Behavioral task
behavioral1
Sample
b4edf5687e00772fdabade28361657ea4b82c98bf6b3eaa8945c814db377e646.dll
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
b4edf5687e00772fdabade28361657ea4b82c98bf6b3eaa8945c814db377e646.dll
Resource
win10v2004-20220812-en
General
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Target
b4edf5687e00772fdabade28361657ea4b82c98bf6b3eaa8945c814db377e646.dll
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Size
328KB
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MD5
9262c1ccd3a7b44c902c48676af815e5
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SHA1
5a18b09353c0fbee30e2aedfd0d71a95170bb0ee
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SHA256
b4edf5687e00772fdabade28361657ea4b82c98bf6b3eaa8945c814db377e646
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SHA512
77c61a8637ad7d4d821250fa03b046fcfaa51a01517a020b70540fcce3e536de15e98447609681e5a0e154159ceb4d893185a125c97c991845a3c4fb939dd98d
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SSDEEP
6144:DR1vdLcjwS8dks4uPo7xnA1BWv6sv15JVL+kHNFwsogsI32LiA2Lr:1/49a1zq9NF5qO2+j
Malware Config
Signatures
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Modifies registry class 60 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\ProgID\ = "WizFlvPlayer.WizFlvPlayerCtrl.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\VersionIndependentProgID\ = "WizFlvPlayer.WizFlvPlayerCtrl" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\Version\ = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{CDC89831-E54B-4487-B7E5-E5F704A8176B}\ = "WizFlvPlayer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WizFlvPlayer.WizFlvPlayerCtrl regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8020C9CC-D38B-4E93-863B-FBD28A8865EC}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8020C9CC-D38B-4E93-863B-FBD28A8865EC}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WizFlvPlayer.WizFlvPlayerCtrl.1\CLSID\ = "{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\ToolboxBitmap32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8020C9CC-D38B-4E93-863B-FBD28A8865EC}\1.0\HELPDIR\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A}\TypeLib\ = "{8020C9CC-D38B-4E93-863B-FBD28A8865EC}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A}\TypeLib\ = "{8020C9CC-D38B-4E93-863B-FBD28A8865EC}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WizFlvPlayer.WizFlvPlayerCtrl.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\MiscStatus\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8020C9CC-D38B-4E93-863B-FBD28A8865EC}\1.0\ = "WizFlvPlayer 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8020C9CC-D38B-4E93-863B-FBD28A8865EC}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\TypeLib\ = "{8020C9CC-D38B-4E93-863B-FBD28A8865EC}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\Control regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\WizFlvPlayer.DLL regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WizFlvPlayer.WizFlvPlayerCtrl.1\ = "WizFlvPlayerCtrl Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A}\ = "IWizFlvPlayerCtrl" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8020C9CC-D38B-4E93-863B-FBD28A8865EC}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8020C9CC-D38B-4E93-863B-FBD28A8865EC}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\ToolboxBitmap32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b4edf5687e00772fdabade28361657ea4b82c98bf6b3eaa8945c814db377e646.dll, 102" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\WizFlvPlayer.DLL\AppID = "{CDC89831-E54B-4487-B7E5-E5F704A8176B}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\ = "WizFlvPlayerCtrl Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{CDC89831-E54B-4487-B7E5-E5F704A8176B} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\Version regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8020C9CC-D38B-4E93-863B-FBD28A8865EC}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b4edf5687e00772fdabade28361657ea4b82c98bf6b3eaa8945c814db377e646.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WizFlvPlayer.WizFlvPlayerCtrl\ = "WizFlvPlayerCtrl Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\MiscStatus\1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WizFlvPlayer.WizFlvPlayerCtrl\CurVer\ = "WizFlvPlayer.WizFlvPlayerCtrl.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\MiscStatus\1\ = "131473" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8020C9CC-D38B-4E93-863B-FBD28A8865EC} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WizFlvPlayer.WizFlvPlayerCtrl\CLSID\ = "{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\AppID = "{CDC89831-E54B-4487-B7E5-E5F704A8176B}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b4edf5687e00772fdabade28361657ea4b82c98bf6b3eaa8945c814db377e646.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WizFlvPlayer.WizFlvPlayerCtrl.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WizFlvPlayer.WizFlvPlayerCtrl\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\MiscStatus regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{599E54DE-23D9-4895-86F1-105360A33B9A}\ = "IWizFlvPlayerCtrl" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8020C9CC-D38B-4E93-863B-FBD28A8865EC}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WizFlvPlayer.WizFlvPlayerCtrl\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3FBB8F72-0DA0-4F63-90B8-8E740B4D2C31} regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3812 wrote to memory of 4848 3812 regsvr32.exe 81 PID 3812 wrote to memory of 4848 3812 regsvr32.exe 81 PID 3812 wrote to memory of 4848 3812 regsvr32.exe 81
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\b4edf5687e00772fdabade28361657ea4b82c98bf6b3eaa8945c814db377e646.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3812 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\b4edf5687e00772fdabade28361657ea4b82c98bf6b3eaa8945c814db377e646.dll2⤵
- Modifies registry class
PID:4848
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