c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570

General

Target

c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Size

4.2MB
MD5

af12467cf609bebd1b5f679916e73d5d
SHA1

32a485ba1eb4d4e9d0f632ddfccd9c3eaac81b66
SHA256

c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570
SHA512

70ff32965d191ec4214302ee544e9ee662f19a2887747e5886cda9edbd66082ce85e33c6806fa124a37043cd3de45228e5fd006f946eeb9b3d7258412ed37d78
SSDEEP

49152:P+kmxHJOgH/XnjMZ1A0wyuunfwZU5BcumF9Q+G0ytZqslWaNThlQmEbp7YuwEkE:PZma4X0JuXlNqNTrDElZwx

Score

8^/10

adware discovery persistence spyware stealer

Malware Config

Signatures

Registers COM server for autorun 1 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\C41k0rc6EQHyGl.x64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\InprocServer32	regsvr32.exe

Loads dropped DLL 3 IoCs

Processes:

c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exeregsvr32.exeregsvr32.exe

pid process

1952 c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
1852 regsvr32.exe
520 regsvr32.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops Chrome extension 3 IoCs

Processes:

c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\ohepjhbdmhpcngmkjehgokbphhcadlhc\2.0\manifest.json	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
File created	C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\ohepjhbdmhpcngmkjehgokbphhcadlhc\2.0\manifest.json	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
File created	C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\ohepjhbdmhpcngmkjehgokbphhcadlhc\2.0\manifest.json	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

Processes:

c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exeregsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\ = "GoSave"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\NoExplorer = "1"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\ = "GoSave"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\NoExplorer = "1"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

Drops file in System32 directory 4 IoCs

Processes:

c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

description	ioc	process
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
File opened for modification	C:\Windows\System32\GroupPolicy	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

Drops file in Program Files directory 8 IoCs

Processes:

c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.x64.dll	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
File created	C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.dll	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
File opened for modification	C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.dll	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
File created	C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.tlb	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
File opened for modification	C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.tlb	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
File created	C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.dat	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
File opened for modification	C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.dat	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
File created	C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.x64.dll	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

Modifies Internet Explorer settings 1 TTPs 8 IoCs

adware spyware

Modify Registry

T1112

Processes:

regsvr32.exec77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key deleted	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{BD91FF72-CB99-44C5-8E3C-E9D7DF64E7F9}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key deleted	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key deleted	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{BD91FF72-CB99-44C5-8E3C-E9D7DF64E7F9}	regsvr32.exe
Key deleted	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration	regsvr32.exe

Modifies registry class 64 IoCs

Processes:

c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exeregsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\ProgID\ = ".9"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32\ = "C:\\Program Files (x86)\\GoSave\\C41k0rc6EQHyGl.tlb"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ = "IRegistry"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\ = "GoSave"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CurVer\ = ".9"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\ = "GoSave"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CLSID	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\ProgID	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD91FF72-CB99-44C5-8E3C-E9D7DF64E7F9}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ = "ILocalStorage"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ = "ILocalStorage"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\Version = "1.0"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\ = "GoSave"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\Programmable	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\InprocServer32\ThreadingModel = "Apartment"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\InprocServer32	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\Version = "1.0"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\Version = "1.0"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\VersionIndependentProgID	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{BD91FF72-CB99-44C5-8E3C-E9D7DF64E7F9}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\..9	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\VersionIndependentProgID\	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS\ = "0"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\Version = "1.0"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\ = "IEPluginLib"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\CLSID	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\CLSID\ = "{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\ = "GoSave"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\C41k0rc6EQHyGl.dll"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\ProgID	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD91FF72-CB99-44C5-8E3C-E9D7DF64E7F9}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CLSID\ = "{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\Programmable	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\InprocServer32	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\Version = "1.0"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\C41k0rc6EQHyGl.x64.dll"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}\Programmable	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9}	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

pid	process
1952	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
1952	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
1952	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
1952	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exeregsvr32.exe

description	pid	process	target process
PID 1952 wrote to memory of 1852	1952	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe	regsvr32.exe
PID 1952 wrote to memory of 1852	1952	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe	regsvr32.exe
PID 1952 wrote to memory of 1852	1952	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe	regsvr32.exe
PID 1952 wrote to memory of 1852	1952	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe	regsvr32.exe
PID 1952 wrote to memory of 1852	1952	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe	regsvr32.exe
PID 1952 wrote to memory of 1852	1952	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe	regsvr32.exe
PID 1952 wrote to memory of 1852	1952	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe	regsvr32.exe
PID 1852 wrote to memory of 520	1852	regsvr32.exe	regsvr32.exe
PID 1852 wrote to memory of 520	1852	regsvr32.exe	regsvr32.exe
PID 1852 wrote to memory of 520	1852	regsvr32.exe	regsvr32.exe
PID 1852 wrote to memory of 520	1852	regsvr32.exe	regsvr32.exe
PID 1852 wrote to memory of 520	1852	regsvr32.exe	regsvr32.exe
PID 1852 wrote to memory of 520	1852	regsvr32.exe	regsvr32.exe
PID 1852 wrote to memory of 520	1852	regsvr32.exe	regsvr32.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID\{bd91ff72-cb99-44c5-8e3c-e9d7df64e7f9} = "1"	c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe

C:\Users\Admin\AppData\Local\Temp\c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe
"C:\Users\Admin\AppData\Local\Temp\c77aa5c15af9cdb7621daa0cfb96b260d541c7d08edd269c187802fbc56d8570.exe"
1⤵
- Loads dropped DLL
- Drops Chrome extension
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1952

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.x64.dll"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1852

C:\Windows\system32\regsvr32.exe
/s "C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.x64.dll"
3⤵
- Registers COM server for autorun
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:520

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.dat
Filesize
4KB

MD5
7b20be7c47768d49310de3375e08570f

SHA1
dc52e36940928734b1a6c3cc01dc3eb939bdeba6

SHA256
18243580ccf39504c9577a25e94fa1924dae567dca1231212f2ad56c8e562d37

SHA512
7d3970b6b6778b6abe1cce068f5db5f768216b7c836015c8e0c297cb703a72d2e4cd06b5b7ea8334632c38bb20b526bdc185f6fff378df5fe8542e87acdc832a

Download Submit
C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.tlb
Filesize
3KB

MD5
6bdd6ba23e0c129c5b4fa1a141aa21f6

SHA1
beef025f5611f84ce53f24e58435f070f92c064f

SHA256
14f706e58b4e332e1bc9b6fc6c650097db6e0ea91ac7ad0064aba01832ddd990

SHA512
828d9f58efd731252209ea1ed7d092c9e88190b81272fa704c8cb963f5f9d91172610b90e0bce763c0f5207b10d67d0fc4eb31294fd89dde2a260a19d324bc1b

Download Submit
C:\Program Files (x86)\GoSave\C41k0rc6EQHyGl.x64.dll
Filesize
882KB

MD5
0827270a2d7dca4230839de0511d4280

SHA1
264ce2775315b06a37cd51d7152df58e29a11b60

SHA256
6863740f9ed110fbf10ef18b8732ada23f4db42e998214ed97a09f5fbdd7571b

SHA512
d1bf285d6b084920c8d03170cc317939a6a5a3c8b67f71064478fc02feba512a1bffe7f10da424efd6441e61933af777b70c5ace4dce582a0b2bd3a02bdc76c4

Download Submit
\Program Files (x86)\GoSave\C41k0rc6EQHyGl.dll
Filesize
750KB

MD5
a1e5276fa264891a2394cfb992fef753

SHA1
3fc9b45acb1feaf1799f70cf93a965221ffe492e

SHA256
7d25cce7e647fbee7c157d7cad8b3a12abb66fa3b992adfede9de78687b69838

SHA512
ded2b69d13d0f6dd0b7f1fb0b6e8dd0ff1e6705ef5ecae284421826b630de43f0fc7c7783c3246c9fe31dedf07e35e3051366abcc666dec7ff6fe06416c62fcd

Download Submit
\Program Files (x86)\GoSave\C41k0rc6EQHyGl.x64.dll
Filesize
882KB

MD5
0827270a2d7dca4230839de0511d4280

SHA1
264ce2775315b06a37cd51d7152df58e29a11b60

SHA256
6863740f9ed110fbf10ef18b8732ada23f4db42e998214ed97a09f5fbdd7571b

SHA512
d1bf285d6b084920c8d03170cc317939a6a5a3c8b67f71064478fc02feba512a1bffe7f10da424efd6441e61933af777b70c5ace4dce582a0b2bd3a02bdc76c4

Download Submit
\Program Files (x86)\GoSave\C41k0rc6EQHyGl.x64.dll
Filesize
882KB

MD5
0827270a2d7dca4230839de0511d4280

SHA1
264ce2775315b06a37cd51d7152df58e29a11b60

SHA256
6863740f9ed110fbf10ef18b8732ada23f4db42e998214ed97a09f5fbdd7571b

SHA512
d1bf285d6b084920c8d03170cc317939a6a5a3c8b67f71064478fc02feba512a1bffe7f10da424efd6441e61933af777b70c5ace4dce582a0b2bd3a02bdc76c4

Download Submit
memory/520-65-0x0000000000000000-mapping.dmp

Download
memory/520-66-0x000007FEFBAB1000-0x000007FEFBAB3000-memory.dmp

Filesize
8KB

Download
memory/1852-61-0x0000000000000000-mapping.dmp

Download
memory/1952-54-0x0000000076391000-0x0000000076393000-memory.dmp

Filesize
8KB

Download
memory/1952-55-0x00000000029C0000-0x0000000002A8A000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads