97b23629f10da081e2a5c619966c239de6158f456ab642b5b2cb134d0797e63d

Analysis

max time kernel
102s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
05/12/2022, 11:46

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General

Target

97b23629f10da081e2a5c619966c239de6158f456ab642b5b2cb134d0797e63d.dll
Size

196KB
MD5

086df06c1a4d1bd49b1f7873de6b9306
SHA1

0fb5329e7158b42f505df2550225c8dad99ba0f4
SHA256

97b23629f10da081e2a5c619966c239de6158f456ab642b5b2cb134d0797e63d
SHA512

41cf6b530ce3acab674649d51a4e000edcb7cdf3b52dc4e551849f62f0818037ac6252b5aa03c4e200925c80b9270026042d9eacdc35af1129fee34e0bfda071
SSDEEP

6144:nKjeNZxeLQRVid/GL96dfFv+NJCEjY0meDD:OQZxCQRO/GL96dNvmnY0P

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

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1428A472-5260-404E-9977-7ECDF1DAF936}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1428A472-5260-404E-9977-7ECDF1DAF936}\ = "MMklkl"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1428A472-5260-404E-9977-7ECDF1DAF936}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 46 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1428A472-5260-404E-9977-7ECDF1DAF936}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MMkl.kl\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1428A472-5260-404E-9977-7ECDF1DAF936}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1428A472-5260-404E-9977-7ECDF1DAF936}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1428A472-5260-404E-9977-7ECDF1DAF936}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}\1.0\ = "DDSMEb 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1428A472-5260-404E-9977-7ECDF1DAF936}\ = "MMklkl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1428A472-5260-404E-9977-7ECDF1DAF936}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1428A472-5260-404E-9977-7ECDF1DAF936}\VersionIndependentProgID\ = "MMkl.kl"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1428A472-5260-404E-9977-7ECDF1DAF936}\TypeLib\ = "{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MMkl.kl\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1428A472-5260-404E-9977-7ECDF1DAF936}\ProgID\ = "MMkl.kl.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1428A472-5260-404E-9977-7ECDF1DAF936}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\97b23629f10da081e2a5c619966c239de6158f456ab642b5b2cb134d0797e63d.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MMkl.kl.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MMkl.kl\ = "MMklkl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}\ = "IMMklam"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}\TypeLib\ = "{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MMkl.kl.1\CLSID\ = "{1428A472-5260-404E-9977-7ECDF1DAF936}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}\TypeLib\ = "{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MMkl.kl.1\ = "MMklkl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MMkl.kl.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1428A472-5260-404E-9977-7ECDF1DAF936}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A88271FD-3162-4789-B742-CCC7F78ABCD3}\ = "IMMklam"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MMkl.kl	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1428A472-5260-404E-9977-7ECDF1DAF936}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8F054DFD-C8B5-450B-99C9-F2C5D7E33AC3}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\97b23629f10da081e2a5c619966c239de6158f456ab642b5b2cb134d0797e63d.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MMkl.kl\CLSID\ = "{1428A472-5260-404E-9977-7ECDF1DAF936}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MMkl.kl\CurVer\ = "MMkl.kl.1"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3436 wrote to memory of 4960	3436	regsvr32.exe	80
PID 3436 wrote to memory of 4960	3436	regsvr32.exe	80
PID 3436 wrote to memory of 4960	3436	regsvr32.exe	80

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\97b23629f10da081e2a5c619966c239de6158f456ab642b5b2cb134d0797e63d.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3436
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\97b23629f10da081e2a5c619966c239de6158f456ab642b5b2cb134d0797e63d.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4960

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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