1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13

General

Target

1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Size

3.7MB
MD5

1a6b91cbbb9a6534aad5113b4fcf7e17
SHA1

3c7c63eb6aeef5b70887e6a208809c35932f4f25
SHA256

1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13
SHA512

703def22e9a97e09ad758b34af7b2014cf498b1f5a458804297775946c6d6b71ca65970b1fe82a422ffa6e68f486ccdd0641ebcc116882f1845b2bf446ca71be
SSDEEP

49152:OJgQb1pA0pl0+bLcObuju34fYK/PkoqtIS/0pTb3RtN76B1pKXWLCc:WrTMGof5Rqtl/yPRt0Bi

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\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\InprocServer32\ = "C:\\Program Files (x86)\\GoSaave\\NLruX168cM8lad.x64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\InprocServer32	regsvr32.exe

Loads dropped DLL 3 IoCs

Processes:

1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exeregsvr32.exeregsvr32.exe

pid process

3020 1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
4892 regsvr32.exe
2648 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:

1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe

description	ioc	process
File created	C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\ppfooaocnkpamjodggbohapkemoickln\2.0\manifest.json	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File created	C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\ppfooaocnkpamjodggbohapkemoickln\2.0\manifest.json	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File created	C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\ppfooaocnkpamjodggbohapkemoickln\2.0\manifest.json	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\ppfooaocnkpamjodggbohapkemoickln\2.0\manifest.json	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File created	C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\ppfooaocnkpamjodggbohapkemoickln\2.0\manifest.json	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.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:

1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exeregsvr32.exe

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\ = "GoSaave"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\NoExplorer = "1"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\ = "GoSaave"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\NoExplorer = "1"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe

Drops file in System32 directory 4 IoCs

Processes:

1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe

description	ioc	process
File opened for modification	C:\Windows\System32\GroupPolicy	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe

Drops file in Program Files directory 8 IoCs

Processes:

1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe

description	ioc	process
File created	C:\Program Files (x86)\GoSaave\NLruX168cM8lad.tlb	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File opened for modification	C:\Program Files (x86)\GoSaave\NLruX168cM8lad.tlb	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File created	C:\Program Files (x86)\GoSaave\NLruX168cM8lad.dat	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File opened for modification	C:\Program Files (x86)\GoSaave\NLruX168cM8lad.dat	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File created	C:\Program Files (x86)\GoSaave\NLruX168cM8lad.x64.dll	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File opened for modification	C:\Program Files (x86)\GoSaave\NLruX168cM8lad.x64.dll	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File created	C:\Program Files (x86)\GoSaave\NLruX168cM8lad.dll	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
File opened for modification	C:\Program Files (x86)\GoSaave\NLruX168cM8lad.dll	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe

Modifies Internet Explorer settings 1 TTPs 8 IoCs

adware spyware

Modify Registry

T1112

Processes:

regsvr32.exe1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key deleted	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\APPROVEDEXTENSIONSMIGRATION\{E4D75043-BA71-44C8-870A-D6AA5C8C5B1B}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key deleted	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key deleted	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\APPROVEDEXTENSIONSMIGRATION\{E4D75043-BA71-44C8-870A-D6AA5C8C5B1B}	regsvr32.exe
Key deleted	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	regsvr32.exe

Modifies registry class 64 IoCs

Processes:

1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exeregsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CurVer\ = ".9"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\InprocServer32	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ = "IRegistry"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\VersionIndependentProgID\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\CLSID	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\ = "GoSaave"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\ = "GoSaave"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\InprocServer32\ = "C:\\Program Files (x86)\\GoSaave\\NLruX168cM8lad.dll"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ = "IPlaghinMein"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS\ = "0"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ = "IPlaghinMein"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\ = "GoSaave"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CurVer	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\InprocServer32\ThreadingModel = "Apartment"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\InprocServer32\ = "C:\\Program Files (x86)\\GoSaave\\NLruX168cM8lad.x64.dll"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\Programmable	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\Version = "1.0"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\InprocServer32	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\InprocServer32	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\CLSID\ = "{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\ = "GoSaave"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E4D75043-BA71-44C8-870A-D6AA5C8C5B1B}\Implemented Categories	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\ProgID	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E4D75043-BA71-44C8-870A-D6AA5C8C5B1B}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\InprocServer32	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\ProgID\ = ".9"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\VersionIndependentProgID	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\ = "IEPluginLib"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\CLSID\ = "{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b}\ProgID	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ = "ILocalStorage"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe

pid	process
3020	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
3020	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
3020	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
3020	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exeregsvr32.exe

description	pid	process	target process
PID 3020 wrote to memory of 4892	3020	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe	regsvr32.exe
PID 3020 wrote to memory of 4892	3020	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe	regsvr32.exe
PID 3020 wrote to memory of 4892	3020	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe	regsvr32.exe
PID 4892 wrote to memory of 2648	4892	regsvr32.exe	regsvr32.exe
PID 4892 wrote to memory of 2648	4892	regsvr32.exe	regsvr32.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID\{e4d75043-ba71-44c8-870a-d6aa5c8c5b1b} = "1"	1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe

C:\Users\Admin\AppData\Local\Temp\1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.exe
"C:\Users\Admin\AppData\Local\Temp\1644731bd088d97fa6ded1b43f75cd93e288cb78ddfbba886e8021dbf1b84f13.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:3020

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Program Files (x86)\GoSaave\NLruX168cM8lad.x64.dll"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4892

C:\Windows\system32\regsvr32.exe
/s "C:\Program Files (x86)\GoSaave\NLruX168cM8lad.x64.dll"
3⤵
- Registers COM server for autorun
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:2648

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:2808

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:4724

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Registry Run Keys / Startup Folder

1

T1060

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

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\GoSaave\NLruX168cM8lad.dat
Filesize
5KB

MD5
0617c0226f200519eefd2a5be03d4bca

SHA1
85be6c87fd3be5cb7e7a62276e1b4bf947d49af6

SHA256
bad3d711dee597a067eee1441752046fb9ad0293ca7e5b68f8b754faec0d2412

SHA512
935fc1dca39e4acf2ba4a4e15a5abf61cfda289220396b319d088390ebb97b505de93d695c7f6cd3712811b1f6c0042cf750b22a07095a3600afcd38e9a6732e

Download Submit
C:\Program Files (x86)\GoSaave\NLruX168cM8lad.dll
Filesize
617KB

MD5
5b02fe261c5832aba1e2b35228934c17

SHA1
b30aef32bfc7fb93add291dd7699d209fc3a60c1

SHA256
af2632d8ad1a0b0e706f260de79b687cf94855d911bf5fc9d4b7007e256e7a6c

SHA512
936b81acb1219be1c18b958f4fc3bd7c5c1ab617fa20e76db165f6ffdb2f674c602c18522980527d84cad7a93dcc79cb222e5e4a8b301298ec141a8b6eb26e72

Download Submit
C:\Program Files (x86)\GoSaave\NLruX168cM8lad.tlb
Filesize
3KB

MD5
934268ece04f6de7c76bfed3478cf1d4

SHA1
a4e0ca22b9db6bfcf061d76e8101ef7559813954

SHA256
ab54518451a446e00679b2dbecd9285d8a96841ad27df558a2e0b6ce55252b8c

SHA512
043fa5fd301b7bbdb6f9ee7766c46dfe5da897b7f7dd164372326416fdb1b7cb3c3809f1293b987077ded2664daf123f9bb217cb12c7d9bf923b1df6a2afccea

Download Submit
C:\Program Files (x86)\GoSaave\NLruX168cM8lad.x64.dll
Filesize
700KB

MD5
5bdec27c100693ecb0b61cc2555e8505

SHA1
771242d417269c2f9150d649f06e6ec8e8bd8cb7

SHA256
ca873de4e82bcaefde87f524b1284723ee61e70767bcb9f45f78a2e52547b326

SHA512
1b4067351a9912bdd4ad0285470396273563336bad6029c2d05e48fb1fd9971c69115cca1ec46dc7ce37274c7c48a2364498cb180563f7871cd838aebbd8c6b4

Download Submit
C:\Program Files (x86)\GoSaave\NLruX168cM8lad.x64.dll
Filesize
700KB

MD5
5bdec27c100693ecb0b61cc2555e8505

SHA1
771242d417269c2f9150d649f06e6ec8e8bd8cb7

SHA256
ca873de4e82bcaefde87f524b1284723ee61e70767bcb9f45f78a2e52547b326

SHA512
1b4067351a9912bdd4ad0285470396273563336bad6029c2d05e48fb1fd9971c69115cca1ec46dc7ce37274c7c48a2364498cb180563f7871cd838aebbd8c6b4

Download Submit
C:\Program Files (x86)\GoSaave\NLruX168cM8lad.x64.dll
Filesize
700KB

MD5
5bdec27c100693ecb0b61cc2555e8505

SHA1
771242d417269c2f9150d649f06e6ec8e8bd8cb7

SHA256
ca873de4e82bcaefde87f524b1284723ee61e70767bcb9f45f78a2e52547b326

SHA512
1b4067351a9912bdd4ad0285470396273563336bad6029c2d05e48fb1fd9971c69115cca1ec46dc7ce37274c7c48a2364498cb180563f7871cd838aebbd8c6b4

Download Submit
memory/2648-141-0x0000000000000000-mapping.dmp

Download
memory/3020-132-0x0000000002C90000-0x0000000002D32000-memory.dmp

Filesize
648KB

Download
memory/4892-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads