fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e

General

Target

fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Size

4.4MB
MD5

d9b969af76dec0c16636eb9fb9ea83c4
SHA1

ab62c2858da98a47d8a4e6f9642b07b324aefa3a
SHA256

fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e
SHA512

bebe0acb9bc435b5d8683cced79773225dbc31149cf1248dfdf2c4f79d97630025b41eb5533dbe19068e0f3deb061365578038284aa1c972942d389ea2f929f4
SSDEEP

49152:QhuK4jmWrCBDT+qLmxup4VdGKvghxfki1Kc7SK6jSlM/Zf0weeDNxUC:m2mWrKyqDKcZ7SK6j8MNtLNxU

Score

8^/10

adware discovery persistence 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\{1f396114-69db-4c7b-9a14-478277f200d9}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\PFvvDMfMLl8NUG.x64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\InprocServer32	regsvr32.exe

Loads dropped DLL 3 IoCs

Processes:

fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exeregsvr32.exeregsvr32.exe

pid process

860 fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
524 regsvr32.exe
1736 regsvr32.exe
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

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:

fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exeregsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1f396114-69db-4c7b-9a14-478277f200d9}\ = "GoSave"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1f396114-69db-4c7b-9a14-478277f200d9}\NoExplorer = "1"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1f396114-69db-4c7b-9a14-478277f200d9}	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1f396114-69db-4c7b-9a14-478277f200d9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1f396114-69db-4c7b-9a14-478277f200d9}\ = "GoSave"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1f396114-69db-4c7b-9a14-478277f200d9}\NoExplorer = "1"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1f396114-69db-4c7b-9a14-478277f200d9}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1f396114-69db-4c7b-9a14-478277f200d9}	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe

Drops file in Program Files directory 8 IoCs

Processes:

fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.dll	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
File created	C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.tlb	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
File opened for modification	C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.tlb	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
File created	C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.dat	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
File opened for modification	C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.dat	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
File created	C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.x64.dll	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
File opened for modification	C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.x64.dll	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
File created	C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.dll	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe

Modifies Internet Explorer settings 1 TTPs 8 IoCs

adware spyware

Modify Registry

T1112

Processes:

regsvr32.exefdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe

description	ioc	process
Key deleted	\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	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{1f396114-69db-4c7b-9a14-478277f200d9}	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{1f396114-69db-4c7b-9a14-478277f200d9}	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key deleted	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{1F396114-69DB-4C7B-9A14-478277F200D9}	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key deleted	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key deleted	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{1F396114-69DB-4C7B-9A14-478277F200D9}	regsvr32.exe

Modifies registry class 64 IoCs

Processes:

fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exeregsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CLSID\ = "{1f396114-69db-4c7b-9a14-478277f200d9}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CurVer\ = ".9"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\PFvvDMfMLl8NUG.x64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CLSID\ = "{1f396114-69db-4c7b-9a14-478277f200d9}"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\ProgID\ = ".9"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ = "IPlaghinMein"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\Version = "1.0"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\ = "GoSave"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\VersionIndependentProgID\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CurVer	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS\ = "0"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\Programmable	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32\ = "C:\\Program Files (x86)\\GoSave\\PFvvDMfMLl8NUG.tlb"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1F396114-69DB-4C7B-9A14-478277F200D9}\Implemented Categories	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\InprocServer32	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1F396114-69DB-4C7B-9A14-478277F200D9}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\InprocServer32	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1F396114-69DB-4C7B-9A14-478277F200D9}	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ = "ILocalStorage"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1F396114-69DB-4C7B-9A14-478277F200D9}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\ = "GoSave"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\Programmable	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\ = "IEPluginLib"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\CLSID\ = "{1f396114-69db-4c7b-9a14-478277f200d9}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\CLSID\ = "{1f396114-69db-4c7b-9a14-478277f200d9}"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\VersionIndependentProgID	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\InprocServer32\ThreadingModel = "Apartment"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\VersionIndependentProgID	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\ = "GoSave"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CurVer\ = ".9"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9}\ = "GoSave"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\Version = "1.0"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe

pid	process
860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe

description	pid	process
Token: SeDebugPrivilege	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Token: SeDebugPrivilege	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Token: SeDebugPrivilege	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Token: SeDebugPrivilege	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Token: SeDebugPrivilege	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Token: SeDebugPrivilege	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exeregsvr32.exe

description	pid	process	target process
PID 860 wrote to memory of 524	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe	regsvr32.exe
PID 860 wrote to memory of 524	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe	regsvr32.exe
PID 860 wrote to memory of 524	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe	regsvr32.exe
PID 860 wrote to memory of 524	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe	regsvr32.exe
PID 860 wrote to memory of 524	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe	regsvr32.exe
PID 860 wrote to memory of 524	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe	regsvr32.exe
PID 860 wrote to memory of 524	860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe	regsvr32.exe
PID 524 wrote to memory of 1736	524	regsvr32.exe	regsvr32.exe
PID 524 wrote to memory of 1736	524	regsvr32.exe	regsvr32.exe
PID 524 wrote to memory of 1736	524	regsvr32.exe	regsvr32.exe
PID 524 wrote to memory of 1736	524	regsvr32.exe	regsvr32.exe
PID 524 wrote to memory of 1736	524	regsvr32.exe	regsvr32.exe
PID 524 wrote to memory of 1736	524	regsvr32.exe	regsvr32.exe
PID 524 wrote to memory of 1736	524	regsvr32.exe	regsvr32.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID\{1f396114-69db-4c7b-9a14-478277f200d9} = "1"	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe

C:\Users\Admin\AppData\Local\Temp\fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
"C:\Users\Admin\AppData\Local\Temp\fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe"
1⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:860

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.x64.dll"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:524

C:\Windows\system32\regsvr32.exe
/s "C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.x64.dll"
3⤵
- Registers COM server for autorun
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:1736

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

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.dat
Filesize
4KB

MD5
7f7472854055ccaa8a29f0fd41e4aeba

SHA1
5a47dea21d9c1a15b0dddfde84e134a719773691

SHA256
0fc81d5c2685caeaf2ddce594cd7d5431c7ccaddcb81f49555628fb42325f42c

SHA512
b8a8139ecf68bacfe23592cd901d7bc3fe8bb5c7ab0751aca4367344ee659fc8def7140dc4f80ba9fa73eaa50c0b4e8a2ab219b5534e727e96a1292fe736e108

Download Submit
C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.tlb
Filesize
3KB

MD5
e3ab22d8beac0180520ab5289a64419b

SHA1
1456ba2c78b293e5a80185fefdf05f5dbe424937

SHA256
0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

SHA512
c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

Download Submit
C:\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.x64.dll
Filesize
872KB

MD5
337b97dbbcc7ad4d75fb5a90652e6de3

SHA1
50e50243af1819e62a7512d85e6dd67b8e1ed103

SHA256
b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

SHA512
dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

Download Submit
\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.dll
Filesize
738KB

MD5
49961c7c9a7aef57f49adf50d1c810f6

SHA1
fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

SHA256
c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

SHA512
8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

Download Submit
\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.x64.dll
Filesize
872KB

MD5
337b97dbbcc7ad4d75fb5a90652e6de3

SHA1
50e50243af1819e62a7512d85e6dd67b8e1ed103

SHA256
b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

SHA512
dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

Download Submit
\Program Files (x86)\GoSave\PFvvDMfMLl8NUG.x64.dll
Filesize
872KB

MD5
337b97dbbcc7ad4d75fb5a90652e6de3

SHA1
50e50243af1819e62a7512d85e6dd67b8e1ed103

SHA256
b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

SHA512
dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

Download Submit
memory/524-67-0x0000000000000000-mapping.dmp

Download
memory/860-54-0x0000000074C41000-0x0000000074C43000-memory.dmp

Filesize
8KB

Download
memory/860-55-0x0000000000340000-0x0000000000409000-memory.dmp

Filesize
804KB

Download
memory/1736-71-0x0000000000000000-mapping.dmp

Download
memory/1736-72-0x000007FEFB861000-0x000007FEFB863000-memory.dmp

Filesize
8KB

Download

pid	process
860	fdbce8efa355eec91da838f0cb21085b359ff67dd6aa212fc5083bf20eb1dc5e.exe
524	regsvr32.exe
1736	regsvr32.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads