83f405fb27bfaee742b087b60172a74c4cc873ac08c0388387f628c456bde26b

Analysis

max time kernel
128s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
28-06-2024 14:09

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General

Target

$_122_/SearchToolbar.dll
Size

264KB
MD5

5ddb11ea4ae68dc90c4d3eb427c290d3
SHA1

855fd8074c9033c1e96e32fedac938fb88e9cba8
SHA256

193b2f27e5fdcd1c5a489ae0421e0105ec2255e800e448508fd54e44c3d2b54a
SHA512

50f9f084930b6bca9f6bdb2c8304824c7d8b417ba12119cc99d5c96e3f7313878335354bb3cc32860c398ef512ba84db70e4c6d60c685556e778567c52b77212
SSDEEP

6144:SEoLo0+YodgQx4edCEQjWNONnMSPKcY+KQ0CkkkkkkkkkkkFCkkkkkkkkkkkWCkc:TQv+xGjWNONnMavYskkkkkkkkkkkskkU

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 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\{9D425283-D487-4337-BAB6-AB8354A81457} regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{9D425283-D487-4337-BAB6-AB8354A81457}	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

regsvr32.exe

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\{9D425283-D487-4337-BAB6-AB8354A81457} = "Search Toolbar"	regsvr32.exe

Modifies registry class 22 IoCs

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SearchToolbarLib.CSearchToolbarImpl.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SearchToolbarLib.CSearchToolbarImpl\ = "Search Toolbar"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D425283-D487-4337-BAB6-AB8354A81457}\ = "Search Toolbar"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D425283-D487-4337-BAB6-AB8354A81457}\TypeLib\ = "{E43AD97A-5248-46A7-BB03-35574058224C}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SearchToolbarLib.CSearchToolbarImpl.1\ = "Search Toolbar"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D425283-D487-4337-BAB6-AB8354A81457}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D425283-D487-4337-BAB6-AB8354A81457}\VersionIndependentProgID\ = "SearchToolbarLib.CSearchToolbarImpl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D425283-D487-4337-BAB6-AB8354A81457}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D425283-D487-4337-BAB6-AB8354A81457}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$_122_\\SearchToolbar.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SearchToolbarLib.CSearchToolbarImpl.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SearchToolbarLib.CSearchToolbarImpl.1\CLSID\ = "{9D425283-D487-4337-BAB6-AB8354A81457}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SearchToolbarLib.CSearchToolbarImpl	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SearchToolbarLib.CSearchToolbarImpl\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SearchToolbarLib.CSearchToolbarImpl\CurVer\ = "SearchToolbarLib.CSearchToolbarImpl.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D425283-D487-4337-BAB6-AB8354A81457}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SearchToolbarLib.CSearchToolbarImpl\CLSID\ = "{9D425283-D487-4337-BAB6-AB8354A81457}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SearchToolbarLib.CSearchToolbarImpl\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D425283-D487-4337-BAB6-AB8354A81457}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D425283-D487-4337-BAB6-AB8354A81457}\ProgID\ = "SearchToolbarLib.CSearchToolbarImpl.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D425283-D487-4337-BAB6-AB8354A81457}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D425283-D487-4337-BAB6-AB8354A81457}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9D425283-D487-4337-BAB6-AB8354A81457}\TypeLib	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 1172 wrote to memory of 2704	1172	regsvr32.exe	regsvr32.exe
PID 1172 wrote to memory of 2704	1172	regsvr32.exe	regsvr32.exe
PID 1172 wrote to memory of 2704	1172	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$_122_\SearchToolbar.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1172

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\$_122_\SearchToolbar.dll
2⤵
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:2704

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4236,i,1067197275908310731,12785105794523264014,262144 --variations-seed-version --mojo-platform-channel-handle=3852 /prefetch:8
1⤵
PID:1444

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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