af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3

General

Target

af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Size

4.3MB
MD5

6c1c46957183205bab11a1f23ede410c
SHA1

045490125a0ebe775d078ad815187bda6cee22fb
SHA256

af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3
SHA512

8927daa2a248b83ba5457d7b275358375b633375ff88af6641f6b976c0fa10cb19cbd202d6f020916a4ef7a3ac8b2b7f9d52a9834d6fb6f4fb0ec7c16c8c1839
SSDEEP

49152:GSuK4jZ0WHCpNqLmxup4TdGKvghxfki1/PXGIjQhjSlM/Zf0weeDNxKr:t2Z0Nvq5KclP2iQhj8MNtLNxK

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\KZ9XJR01xiyMbZ.x64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\InprocServer32	regsvr32.exe

Loads dropped DLL 3 IoCs

Processes:

af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exeregsvr32.exeregsvr32.exe

pid process

1284 af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
324 regsvr32.exe
704 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:

regsvr32.exeaf31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{31318292-afe0-44d3-803b-7bce93a3353d}\ = "GoSave"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{31318292-afe0-44d3-803b-7bce93a3353d}\NoExplorer = "1"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{31318292-afe0-44d3-803b-7bce93a3353d}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{31318292-afe0-44d3-803b-7bce93a3353d}	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{31318292-afe0-44d3-803b-7bce93a3353d}\ = "GoSave"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{31318292-afe0-44d3-803b-7bce93a3353d}\NoExplorer = "1"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{31318292-afe0-44d3-803b-7bce93a3353d}	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{31318292-afe0-44d3-803b-7bce93a3353d}	regsvr32.exe

Drops file in Program Files directory 8 IoCs

Processes:

af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.dll	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
File created	C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.tlb	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
File opened for modification	C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.tlb	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
File created	C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.dat	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
File opened for modification	C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.dat	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
File created	C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.x64.dll	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
File opened for modification	C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.x64.dll	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
File created	C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.dll	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe

Modifies Internet Explorer settings 1 TTPs 8 IoCs

adware spyware

Modify Registry

T1112

Processes:

af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exeregsvr32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{31318292-afe0-44d3-803b-7bce93a3353d}	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key deleted	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{31318292-AFE0-44D3-803B-7BCE93A3353D}	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key deleted	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key deleted	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{31318292-AFE0-44D3-803B-7BCE93A3353D}	regsvr32.exe
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\{31318292-afe0-44d3-803b-7bce93a3353d}	regsvr32.exe

Modifies registry class 64 IoCs

Processes:

regsvr32.exeaf31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\ = "GoSave"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-AFE0-44D3-803B-7BCE93A3353D}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\KZ9XJR01xiyMbZ.x64.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CLSID	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\Programmable	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31318292-AFE0-44D3-803B-7BCE93A3353D}	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ = "ILocalStorage"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\VersionIndependentProgID\	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\ProgID	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32\ = "C:\\Program Files (x86)\\GoSave\\KZ9XJR01xiyMbZ.tlb"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\Version = "1.0"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\Version = "1.0"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\CLSID\ = "{31318292-afe0-44d3-803b-7bce93a3353d}"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\ = "GoSave"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\ProgID\ = ".9"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CLSID\ = "{31318292-afe0-44d3-803b-7bce93a3353d}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CurVer\ = ".9"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\ProgID	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR\ = "C:\\Program Files (x86)\\GoSave"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\CurVer\ = ".9"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\..9\ = "GoSave"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\Version = "1.0"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\Version = "1.0"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\ = "GoSave"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-AFE0-44D3-803B-7BCE93A3353D}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\..9	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\Programmable	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS\ = "0"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ = "IPlaghinMein"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\VersionIndependentProgID\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\KZ9XJR01xiyMbZ.dll"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ = "IRegistry"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\InprocServer32	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\ = "GoSave"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\Version = "1.0"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d}\VersionIndependentProgID	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.\ = "GoSave"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe

pid	process
1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe

description	pid	process
Token: SeDebugPrivilege	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Token: SeDebugPrivilege	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Token: SeDebugPrivilege	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Token: SeDebugPrivilege	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Token: SeDebugPrivilege	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Token: SeDebugPrivilege	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exeregsvr32.exe

description	pid	process	target process
PID 1284 wrote to memory of 324	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe	regsvr32.exe
PID 1284 wrote to memory of 324	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe	regsvr32.exe
PID 1284 wrote to memory of 324	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe	regsvr32.exe
PID 1284 wrote to memory of 324	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe	regsvr32.exe
PID 1284 wrote to memory of 324	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe	regsvr32.exe
PID 1284 wrote to memory of 324	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe	regsvr32.exe
PID 1284 wrote to memory of 324	1284	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe	regsvr32.exe
PID 324 wrote to memory of 704	324	regsvr32.exe	regsvr32.exe
PID 324 wrote to memory of 704	324	regsvr32.exe	regsvr32.exe
PID 324 wrote to memory of 704	324	regsvr32.exe	regsvr32.exe
PID 324 wrote to memory of 704	324	regsvr32.exe	regsvr32.exe
PID 324 wrote to memory of 704	324	regsvr32.exe	regsvr32.exe
PID 324 wrote to memory of 704	324	regsvr32.exe	regsvr32.exe
PID 324 wrote to memory of 704	324	regsvr32.exe	regsvr32.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID\{31318292-afe0-44d3-803b-7bce93a3353d} = "1"	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID	af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe

C:\Users\Admin\AppData\Local\Temp\af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.exe
"C:\Users\Admin\AppData\Local\Temp\af31cef33e689e44fd5876be16240e1cea6e6515840716170c0a3f39482e44e3.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:1284

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.x64.dll"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:324

C:\Windows\system32\regsvr32.exe
/s "C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.x64.dll"
3⤵
- Registers COM server for autorun
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:704

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

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.dat

Filesize
4KB

MD5
7a1f9afb5a0c665512368af26114214e

SHA1
47ea4d93fc68c244d17b601350c43f549536a2f9

SHA256
6ad6a16679c691fa42ef43988e8b8726ab992e486fbebc67dc2108bd4358bd28

SHA512
6c1c5987b5a0c71d97e8c4dc65982d9fd026bc6287c9886c38c83814e7b2123ed53e5d63291232b0b95cf0c7382a0dc6f94af7c00ee0bcff2fc30419848b97f6

Download Submit
C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.tlb

Filesize
3KB

MD5
e3ab22d8beac0180520ab5289a64419b

SHA1
1456ba2c78b293e5a80185fefdf05f5dbe424937

SHA256
0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

SHA512
c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

Download Submit
C:\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.x64.dll

Filesize
872KB

MD5
337b97dbbcc7ad4d75fb5a90652e6de3

SHA1
50e50243af1819e62a7512d85e6dd67b8e1ed103

SHA256
b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

SHA512
dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

Download Submit
\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.dll

Filesize
738KB

MD5
49961c7c9a7aef57f49adf50d1c810f6

SHA1
fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

SHA256
c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

SHA512
8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

Download Submit
\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.x64.dll

Filesize
872KB

MD5
337b97dbbcc7ad4d75fb5a90652e6de3

SHA1
50e50243af1819e62a7512d85e6dd67b8e1ed103

SHA256
b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

SHA512
dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

Download Submit
\Program Files (x86)\GoSave\KZ9XJR01xiyMbZ.x64.dll

Filesize
872KB

MD5
337b97dbbcc7ad4d75fb5a90652e6de3

SHA1
50e50243af1819e62a7512d85e6dd67b8e1ed103

SHA256
b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

SHA512
dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

Download Submit
memory/324-61-0x0000000000000000-mapping.dmp

Download
memory/704-65-0x0000000000000000-mapping.dmp

Download
memory/704-66-0x000007FEFBCC1000-0x000007FEFBCC3000-memory.dmp

Filesize
8KB

Download
memory/1284-54-0x0000000075651000-0x0000000075653000-memory.dmp

Filesize
8KB

Download
memory/1284-55-0x0000000002BF0000-0x0000000002CB9000-memory.dmp

Filesize
804KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads