cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb

General

Target

cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Size

4.5MB
MD5

da1c7e3e8a609db002aa0511097d844a
SHA1

6e82f8bf59ac7f05849537eccc6d64d056642927
SHA256

cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb
SHA512

8aa45376564e55c75239b67f2c8e08e15930b269e917d5beb47d9fa8780e4c2f57e8b44b99607b29f440399ef355a9f631290a71925b7f34a994802327424b97
SSDEEP

49152:EIaK6pJEqd+Ti0Haxup4k5ppWmD/M2BKQl7Ic7SK7yoC3yE/Ac5mWxnm7B:5OJEf20Jpp1D//7SKuoWNAxenQ

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\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\cGSAUdER0WMM7r.x64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\InprocServer32	regsvr32.exe

Loads dropped DLL 3 IoCs

Processes:

cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exeregsvr32.exeregsvr32.exe

pid process

5060 cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
488 regsvr32.exe
4984 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 5 IoCs

Processes:

cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\afmnkoiodmhbeljcmndfdpohmcgbijgl\2.0\manifest.json	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File created	C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\afmnkoiodmhbeljcmndfdpohmcgbijgl\2.0\manifest.json	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File created	C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\afmnkoiodmhbeljcmndfdpohmcgbijgl\2.0\manifest.json	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File created	C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\afmnkoiodmhbeljcmndfdpohmcgbijgl\2.0\manifest.json	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File created	C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\afmnkoiodmhbeljcmndfdpohmcgbijgl\2.0\manifest.json	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.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:

cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exeregsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\ = "GoSave"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\NoExplorer = "1"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\ = "GoSave"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\NoExplorer = "1"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}	regsvr32.exe

Drops file in System32 directory 4 IoCs

Processes:

cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe

description	ioc	process
File opened for modification	C:\Windows\System32\GroupPolicy	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe

Drops file in Program Files directory 8 IoCs

Processes:

cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.dll	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File created	C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.tlb	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File opened for modification	C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.tlb	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File created	C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.dat	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File opened for modification	C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.dat	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File created	C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.x64.dll	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File opened for modification	C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.x64.dll	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
File created	C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.dll	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe

Modifies Internet Explorer settings 1 TTPs 8 IoCs

adware spyware

Modify Registry

T1112

Processes:

cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exeregsvr32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\APPROVEDEXTENSIONSMIGRATION\{F9908CFA-BB40-41DA-BB6E-3AA5056F9AC6}	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\APPROVEDEXTENSIONSMIGRATION\{F9908CFA-BB40-41DA-BB6E-3AA5056F9AC6}	regsvr32.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe

Modifies registry class 64 IoCs

Processes:

cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exeregsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32\ = "C:\\Program Files (x86)\\GoSave\\cGSAUdER0WMM7r.tlb"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ = "ILocalStorage"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\Programmable	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\cGSAUdER0WMM7r.dll"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\ = "GoSave"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{F9908CFA-BB40-41DA-BB6E-3AA5056F9AC6}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\Version = "1.0"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CLSID	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\VersionIndependentProgID	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{F9908CFA-BB40-41DA-BB6E-3AA5056F9AC6}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\Version = "1.0"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\VersionIndependentProgID	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\Version = "1.0"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\Version = "1.0"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ = "IRegistry"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\ = "GoSave"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\ProgID	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F9908CFA-BB40-41DA-BB6E-3AA5056F9AC6}	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\ = "GoSave"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\..9	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\ = "GoSave"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CLSID\ = "{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ = "IRegistry"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\cGSAUdER0WMM7r.x64.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CurVer	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\ProgID	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\CLSID\ = "{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\VersionIndependentProgID\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CurVer\ = ".9"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\InprocServer32	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\Programmable	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\ProgID\ = ".9"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\ProgID\ = ".9"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6}\InprocServer32\ThreadingModel = "Apartment"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe

pid	process
5060	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
5060	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
5060	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
5060	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
5060	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
5060	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
5060	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
5060	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exeregsvr32.exe

description	pid	process	target process
PID 5060 wrote to memory of 488	5060	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe	regsvr32.exe
PID 5060 wrote to memory of 488	5060	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe	regsvr32.exe
PID 5060 wrote to memory of 488	5060	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe	regsvr32.exe
PID 488 wrote to memory of 4984	488	regsvr32.exe	regsvr32.exe
PID 488 wrote to memory of 4984	488	regsvr32.exe	regsvr32.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID\{f9908cfa-bb40-41da-bb6e-3aa5056f9ac6} = "1"	cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe

C:\Users\Admin\AppData\Local\Temp\cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.exe
"C:\Users\Admin\AppData\Local\Temp\cefdda2936047cb1ee36ebda8cc7ace1a9677768eaa9e4e3e44c207252b3e3cb.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:5060

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.x64.dll"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:488

C:\Windows\system32\regsvr32.exe
/s "C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.x64.dll"
3⤵
- Registers COM server for autorun
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:4984

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:1572

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:3088

Network

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

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Downloads

C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.dat
Filesize
4KB

MD5
4ae1c918ae0a4f56643227b1c061f49c

SHA1
b6a8029b4d591b90b771b0a5cf100b9549f0d43e

SHA256
1c9f1947d8283dfcb93deb5f1e6534f1a76d04cb4cb177bde9d50324b84bce84

SHA512
8b1273f85297256e72fe139e9a22ebd321c7fb0a2b4e0814edfb00fa5fa853f76ffd232060fe869de23c82cc275fa81ee28e907fb8222d81f24571ec194c5d6f

Download Submit
C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.dll
Filesize
738KB

MD5
49961c7c9a7aef57f49adf50d1c810f6

SHA1
fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

SHA256
c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

SHA512
8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

Download Submit
C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.tlb
Filesize
3KB

MD5
e3ab22d8beac0180520ab5289a64419b

SHA1
1456ba2c78b293e5a80185fefdf05f5dbe424937

SHA256
0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

SHA512
c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

Download Submit
C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.x64.dll
Filesize
872KB

MD5
337b97dbbcc7ad4d75fb5a90652e6de3

SHA1
50e50243af1819e62a7512d85e6dd67b8e1ed103

SHA256
b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

SHA512
dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

Download Submit
C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.x64.dll
Filesize
872KB

MD5
337b97dbbcc7ad4d75fb5a90652e6de3

SHA1
50e50243af1819e62a7512d85e6dd67b8e1ed103

SHA256
b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

SHA512
dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

Download Submit
C:\Program Files (x86)\GoSave\cGSAUdER0WMM7r.x64.dll
Filesize
872KB

MD5
337b97dbbcc7ad4d75fb5a90652e6de3

SHA1
50e50243af1819e62a7512d85e6dd67b8e1ed103

SHA256
b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

SHA512
dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

Download Submit
memory/488-138-0x0000000000000000-mapping.dmp

Download
memory/4984-141-0x0000000000000000-mapping.dmp

Download
memory/5060-132-0x0000000003010000-0x00000000030D9000-memory.dmp

Filesize
804KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads