Analysis
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max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
21-03-2024 19:27
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
dc6d20dad46a7c6d89d57dcc60231a8f.dll
Resource
win7-20240221-en
3 signatures
150 seconds
General
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Target
dc6d20dad46a7c6d89d57dcc60231a8f.dll
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Size
286KB
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MD5
dc6d20dad46a7c6d89d57dcc60231a8f
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SHA1
b1343fdda81a0e2f65766bd499e9d7eec6cc5968
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SHA256
9307604003b2ab87472554836e427a57427f176226d5d1f5529a4d79ad8f7ed4
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SHA512
cad7d4e3ffcfce08865841eb2e713217007f490480633d208a3b5da3c50939e53939658be0b2b80fa4eb3334a1a92faa3b3eb7d4790010584d3c78db2e25778d
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SSDEEP
6144:aFwcLqg3g9ebxExkIRrszvaoyIN0KkhLl:7gpbxEKOrszvaoynZ
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 (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{21608B66-026F-4DCB-9244-0DACA328DCED}\NoExplorer = "1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{21608B66-026F-4DCB-9244-0DACA328DCED} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{21608B66-026F-4DCB-9244-0DACA328DCED}\ = "PlaySushi" regsvr32.exe -
Modifies registry class 64 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\ = "IIEButton" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\ = "GoPlaySushi" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\PSText.DLL\AppID = "{E89A07B5-BD7A-43F9-BDA4-0DAA48AC4FA5}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi.1\CLSID\ = "{21608B66-026F-4DCB-9244-0DACA328DCED}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\TypeLib\ = "{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}\TypeLib\ = "{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dc6d20dad46a7c6d89d57dcc60231a8f.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\VersionIndependentProgID\ = "PlaySushi32.PlaySushi" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi.1\ = "PlaySushi" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\ = "_IPluginEvents" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton\CLSID\ = "{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dc6d20dad46a7c6d89d57dcc60231a8f.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{E89A07B5-BD7A-43F9-BDA4-0DAA48AC4FA5} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton.1\ = "IEButton Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\ProgID\ = "PSText.IEButton.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}\ = "IPlugin" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{E89A07B5-BD7A-43F9-BDA4-0DAA48AC4FA5}\ = "PlaySushi32" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\VersionIndependentProgID\ = "PSText.IEButton" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\TypeLib\ = "{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\ = "IIEButton" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton\CurVer\ = "PSText.IEButton.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}\1.0\ = "PlaySushi32 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\TypeLib\ = "{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\TypeLib\ = "{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\PSText.DLL regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi\CurVer\ = "PlaySushi32.PlaySushi.1" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3392 wrote to memory of 1012 3392 regsvr32.exe 88 PID 3392 wrote to memory of 1012 3392 regsvr32.exe 88 PID 3392 wrote to memory of 1012 3392 regsvr32.exe 88
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\dc6d20dad46a7c6d89d57dcc60231a8f.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3392 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\dc6d20dad46a7c6d89d57dcc60231a8f.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1012
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