d47a5a71ef7b6d75a6fb8ee4007999d89faa1696d4366d7843961bafa90102b8

Analysis

max time kernel
143s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 06:21

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General

Target

2b91a2b40c46ed270fc0d133a978e72f.dll
Size

228KB
MD5

2b91a2b40c46ed270fc0d133a978e72f
SHA1

e7f3fa0d487d6854100f29a5c61016a4487ccbcc
SHA256

d47a5a71ef7b6d75a6fb8ee4007999d89faa1696d4366d7843961bafa90102b8
SHA512

24030724fb93e7a27fa66fdc78294c66e21bf3d17b77fe68fb1052a07ebf6fdf117f723e7bf34c439ef83f28937a86773ddcdf7d40e48b4b40bb4596f0c1f2c6
SSDEEP

3072:U/DYpIzYNTaF+crdjI5956au9BWq0a4gPa8dYcrE7KGLMqAEEtTJ/TvUao8DG3Ji:U/DYpIV+YIi/0arhfGAEEU1bQ

Score

6^/10

adware discovery stealer

Malware Config

Signatures

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 2 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\{07B18EA1-A523-4961-B6BB-170DE4475CCA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{07B18EA1-A523-4961-B6BB-170DE4475CCA}\ = "mwsBar BHO"	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Toolbar	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Toolbar\{07B18EA9-A523-4961-B6BB-170DE4475CCA}	regsvr32.exe

Modifies registry class 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{07B18EAC-A523-4961-B6BB-170DE4475CCA}\TypeLib\ = "{07B18EA0-A523-4961-B6BB-170DE4475CCA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA2-A523-4961-B6BB-170DE4475CCA}\MiscStatus\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA9-A523-4961-B6BB-170DE4475CCA}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA3-A523-4961-B6BB-170DE4475CCA}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA3-A523-4961-B6BB-170DE4475CCA}\MiscStatus\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{07B18EAC-A523-4961-B6BB-170DE4475CCA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA9-A523-4961-B6BB-170DE4475CCA}\TypeLib\ = "{07B18EA0-A523-4961-B6BB-170DE4475CCA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1E0DE227-5CE4-4ea3-AB0C-8B03E1AA76BC}\ = "My Way Speedbar Quick View"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MyWebSearchToolBar.SettingsPlugin\CLSID\ = "{07B18EAB-A523-4961-B6BB-170DE4475CCA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{07B18EA0-A523-4961-B6BB-170DE4475CCA}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{07B18EAA-A523-4961-B6BB-170DE4475CCA}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EAB-A523-4961-B6BB-170DE4475CCA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{07B18EAC-A523-4961-B6BB-170DE4475CCA}\ = "_IMyWebSearchSettingsEvents"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{07B18EA0-A523-4961-B6BB-170DE4475CCA}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{07B18EAA-A523-4961-B6BB-170DE4475CCA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{07B18EAA-A523-4961-B6BB-170DE4475CCA}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{07B18EAC-A523-4961-B6BB-170DE4475CCA}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{07B18EAA-A523-4961-B6BB-170DE4475CCA}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA9-A523-4961-B6BB-170DE4475CCA}\ = "My &Way Speedbar"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA9-A523-4961-B6BB-170DE4475CCA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA3-A523-4961-B6BB-170DE4475CCA}\MiscStatus\1\ = "131473"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA3-A523-4961-B6BB-170DE4475CCA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA1-A523-4961-B6BB-170DE4475CCA}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EAB-A523-4961-B6BB-170DE4475CCA}\MiscStatus\1\ = "131473"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{07B18EA0-A523-4961-B6BB-170DE4475CCA}\1.0\ = "Toolbar 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{07B18EAA-A523-4961-B6BB-170DE4475CCA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA9-A523-4961-B6BB-170DE4475CCA}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1E0DE227-5CE4-4ea3-AB0C-8B03E1AA76BC}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1E0DE227-5CE4-4ea3-AB0C-8B03E1AA76BC}\Instance\InitPropertyBag	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MyWebSearchToolBar.SettingsPlugin\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EAB-A523-4961-B6BB-170DE4475CCA}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA3-A523-4961-B6BB-170DE4475CCA}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{07B18EAC-A523-4961-B6BB-170DE4475CCA}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA1-A523-4961-B6BB-170DE4475CCA}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EAB-A523-4961-B6BB-170DE4475CCA}\MiscStatus\1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EAB-A523-4961-B6BB-170DE4475CCA}\Version	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA3-A523-4961-B6BB-170DE4475CCA}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2b91a2b40c46ed270fc0d133a978e72f.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA1-A523-4961-B6BB-170DE4475CCA}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EAB-A523-4961-B6BB-170DE4475CCA}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{07B18EAC-A523-4961-B6BB-170DE4475CCA}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{07B18EAC-A523-4961-B6BB-170DE4475CCA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{07B18EAC-A523-4961-B6BB-170DE4475CCA}\TypeLib\ = "{07B18EA0-A523-4961-B6BB-170DE4475CCA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA2-A523-4961-B6BB-170DE4475CCA}\ = "mwsBar IE Installer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA2-A523-4961-B6BB-170DE4475CCA}\Version	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA2-A523-4961-B6BB-170DE4475CCA}\Version\ = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EAB-A523-4961-B6BB-170DE4475CCA}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2b91a2b40c46ed270fc0d133a978e72f.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{07B18EAA-A523-4961-B6BB-170DE4475CCA}\ = "IMyWebSearchSettings"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1E0DE227-5CE4-4ea3-AB0C-8B03E1AA76BC}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{07B18EAA-A523-4961-B6BB-170DE4475CCA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA2-A523-4961-B6BB-170DE4475CCA}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EAB-A523-4961-B6BB-170DE4475CCA}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{07B18EAA-A523-4961-B6BB-170DE4475CCA}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{07B18EA0-A523-4961-B6BB-170DE4475CCA}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{07B18EAC-A523-4961-B6BB-170DE4475CCA}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA2-A523-4961-B6BB-170DE4475CCA}\Control	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA3-A523-4961-B6BB-170DE4475CCA}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA3-A523-4961-B6BB-170DE4475CCA}\TypeLib\ = "{07B18EA0-A523-4961-B6BB-170DE4475CCA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MyWebSearchToolBar.SettingsPlugin	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EAB-A523-4961-B6BB-170DE4475CCA}\VersionIndependentProgID\ = "MyWebSearchToolBar.SettingsPlugin"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA2-A523-4961-B6BB-170DE4475CCA}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1E0DE227-5CE4-4ea3-AB0C-8B03E1AA76BC}\InprocServer32\ = "C:\\Windows\\SysWow64\\shdocvw.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1E0DE227-5CE4-4ea3-AB0C-8B03E1AA76BC}\Instance\InitPropertyBag\Url = "res://C:\\Users\\Admin\\AppData\\Local\\Temp\\2B91A2~1.DLL/105"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07B18EA1-A523-4961-B6BB-170DE4475CCA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{07B18EAA-A523-4961-B6BB-170DE4475CCA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 788 wrote to memory of 4824	788	regsvr32.exe	88
PID 788 wrote to memory of 4824	788	regsvr32.exe	88
PID 788 wrote to memory of 4824	788	regsvr32.exe	88
PID 4824 wrote to memory of 4408	4824	regsvr32.exe	90
PID 4824 wrote to memory of 4408	4824	regsvr32.exe	90
PID 4824 wrote to memory of 4408	4824	regsvr32.exe	90

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2b91a2b40c46ed270fc0d133a978e72f.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:788
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\2b91a2b40c46ed270fc0d133a978e72f.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies Internet Explorer settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:4824
- - C:\Windows\SysWOW64\mshta.exe
    mshta res://C:\Users\Admin\AppData\Local\Temp\2B91A2~1.DLL/103
    3⤵
    PID:4408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4408-1-0x00000000040D0000-0x000000000410A000-memory.dmp

Filesize
232KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads