ad3bcb65313043b1a43b8fb210f3a20a87df8a8145ed9a18b086d0859616caa2

Analysis

max time kernel
136s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
23-10-2023 21:16

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General

Target

50a04b093c8f05481eb672ebec0537f61e233071798d1f3b939e17e333b51795.dll
Size

349KB
MD5

8b5ea4d800861e7dfb4bfcad593e8ca3
SHA1

ec5379f66dbc66afe09eaa7dc07bcba551f9739d
SHA256

50a04b093c8f05481eb672ebec0537f61e233071798d1f3b939e17e333b51795
SHA512

7a9cb045bb8b811254ff01d5389ec5e4a799ecde5441ddf0b35d52d524c2bfd142da8f5701ed88672fd451866f32cce7ca8c1d409153e7d71678e8a466fb1418
SSDEEP

6144:W323b9t48aRkIzdNrFt9tlZZspbSoA1v3j0ciHMnjKiV6p/KBTA/:W3wb9ukIzdNrZtBkk3EHAWiZBTA

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

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

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D9661AF0-C190-497C-884A-D4CED14BB1E0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D9661AF0-C190-497C-884A-D4CED14BB1E0}\ = "xuulibP"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D9661AF0-C190-497C-884A-D4CED14BB1E0}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 64 IoCs

Processes:

regsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr.1\ = "xuulibB Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9661AF0-C190-497C-884A-D4CED14BB1E0}\VersionIndependentProgID\ = "xuulib.AClass"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\xuulib.DLL\AppID = "{B0ED4726-5BC8-4E22-A7A8-3074A73CE64E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B11DA719-6EFC-42A7-B03F-50FC32AA1B69}\ = "JetMimeFiltr Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B11DA719-6EFC-42A7-B03F-50FC32AA1B69}\ProgID\ = "xuulib.BClass.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9661AF0-C190-497C-884A-D4CED14BB1E0}\AppID = "{B0ED4726-5BC8-4E22-A7A8-3074A73CE64E}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B7CFEC75-A194-43BA-9849-9D09A3E52ECA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B7CFEC75-A194-43BA-9849-9D09A3E52ECA}\TypeLib\ = "{B8606A0A-9EA3-451C-89F6-E3D306F72FB9}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\ = "PSFactoryBuffer"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9661AF0-C190-497C-884A-D4CED14BB1E0}\ProgID\ = "xuulib.AClass.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B7CFEC75-A194-43BA-9849-9D09A3E52ECA}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B7CFEC75-A194-43BA-9849-9D09A3E52ECA}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B11DA719-6EFC-42A7-B03F-50FC32AA1B69}\AppID = "{B0ED4726-5BC8-4E22-A7A8-3074A73CE64E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9661AF0-C190-497C-884A-D4CED14BB1E0}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9661AF0-C190-497C-884A-D4CED14BB1E0}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B8606A0A-9EA3-451C-89F6-E3D306F72FB9}\1.0\ = "xuulib Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B7CFEC75-A194-43BA-9849-9D09A3E52ECA}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\NumMethods\ = "7"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\xuulib.DLL	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin\ = "xuulibA Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B7CFEC75-A194-43BA-9849-9D09A3E52ECA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B7CFEC75-A194-43BA-9849-9D09A3E52ECA}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr.1\CLSID\ = "{B11DA719-6EFC-42A7-B03F-50FC32AA1B69}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B11DA719-6EFC-42A7-B03F-50FC32AA1B69}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\50a04b093c8f05481eb672ebec0537f61e233071798d1f3b939e17e333b51795.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B8606A0A-9EA3-451C-89F6-E3D306F72FB9}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B8606A0A-9EA3-451C-89F6-E3D306F72FB9}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B7CFEC75-A194-43BA-9849-9D09A3E52ECA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\ProxyStubClsid32\ = "{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1408E208-2AC1-42D3-9F10-78A5B36E05AC}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B11DA719-6EFC-42A7-B03F-50FC32AA1B69}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B8606A0A-9EA3-451C-89F6-E3D306F72FB9}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\50a04b093c8f05481eb672ebec0537f61e233071798d1f3b939e17e333b51795.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\ = "IJetMimeFiltr"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B11DA719-6EFC-42A7-B03F-50FC32AA1B69}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B8606A0A-9EA3-451C-89F6-E3D306F72FB9}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B7CFEC75-A194-43BA-9849-9D09A3E52ECA}\ProxyStubClsid32\ = "{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\TypeLib\ = "{B8606A0A-9EA3-451C-89F6-E3D306F72FB9}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\50a04b093c8f05481eb672ebec0537f61e233071798d1f3b939e17e333b51795.dll"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1408E208-2AC1-42D3-9F10-78A5B36E05AC}\{E4BF93C1-D1E0-422E-82C1-8338FE72BA0B} = 7b00440039003600360031004100460030002d0043003100390030002d0034003900370043002d0038003800340041002d004400340043004500440031003400420042003100450030007d00	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B8606A0A-9EA3-451C-89F6-E3D306F72FB9}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9661AF0-C190-497C-884A-D4CED14BB1E0}\TypeLib\ = "{B8606A0A-9EA3-451C-89F6-E3D306F72FB9}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\CurVer\ = "Lexlibplugin.LexlibMimeFiltr.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B8606A0A-9EA3-451C-89F6-E3D306F72FB9}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9661AF0-C190-497C-884A-D4CED14BB1E0}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\50a04b093c8f05481eb672ebec0537f61e233071798d1f3b939e17e333b51795.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{B0ED4726-5BC8-4E22-A7A8-3074A73CE64E}\ = "xuulib"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetVideoPlugin\CurVer\ = "xuulib.AClass.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B7CFEC75-A194-43BA-9849-9D09A3E52ECA}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B11DA719-6EFC-42A7-B03F-50FC32AA1B69}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B11DA719-6EFC-42A7-B03F-50FC32AA1B69}\VersionIndependentProgID\ = "xuulib.BClass"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B797D429-BF6D-4F31-A8CC-C8678E0AA5B8}\ProxyStubClsid32	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1408E208-2AC1-42D3-9F10-78A5B36E05AC}\{070E2C5C-40D8-4A0A-9F39-9C642B5662DA} = 7800750075006c00690062002e0064006c006c00	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\xvideoplugin.JetMimeFiltr\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9661AF0-C190-497C-884A-D4CED14BB1E0}	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 4252 wrote to memory of 4720	4252	regsvr32.exe	regsvr32.exe
PID 4252 wrote to memory of 4720	4252	regsvr32.exe	regsvr32.exe
PID 4252 wrote to memory of 4720	4252	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\50a04b093c8f05481eb672ebec0537f61e233071798d1f3b939e17e333b51795.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4252

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\50a04b093c8f05481eb672ebec0537f61e233071798d1f3b939e17e333b51795.dll
2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:4720

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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