d6129731391f088c7c219e2cf69fed6d71e769514e29e65c179116feba1d3d8d

Analysis

max time kernel
93s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
09-07-2024 13:59

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General

Target

$TEMP/modules/addr.dll
Size

171KB
MD5

43b1aef222adc84a9bd4abf07ac3bb2f
SHA1

aaf8fc490466db02e489b74d2945831f4ee20258
SHA256

7d9f571395e368194439142f9e5c2fcd9146fedb2633f57db509c3080cfee23a
SHA512

6f4e9549233c894afa82c42ab77af5f6e131ea59ae17195a1b54e64a9983a56fe2fe6c9d701618da16183042e601fb0c22a1c7bf68b3fadb3bfa1210f2e3feb6
SSDEEP

3072:nrCxzdTtYTU1Dfazr9IfU8KoixmsuZxBNwJNkfFLKD10jlusR6ws:+vYTU5EreZN4MFLKDeIms

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

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{28B3B717-A610-4e32-8555-B8BA4779CF8A}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28B3B717-A610-4e32-8555-B8BA4779CF8A}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{28B3B716-A610-4E32-8555-B8BA4779CF8A}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{28B3B716-A610-4E32-8555-B8BA4779CF8A}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$TEMP\\modules\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28B3B717-A610-4e32-8555-B8BA4779CF8A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$TEMP\\modules\\addr.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{28B3B716-A610-4E32-8555-B8BA4779CF8A}\1.0\ = "KwAddr 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{28B3B716-A610-4E32-8555-B8BA4779CF8A}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$TEMP\\modules\\addr.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}\TypeLib\ = "{28B3B716-A610-4E32-8555-B8BA4779CF8A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{28B3B716-A610-4E32-8555-B8BA4779CF8A}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\KwAddr.IEHlprObj.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\KwAddr.IEHlprObj.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\KwAddr.IEHlprObj\ = "KwAddr Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\KwAddr.IEHlprObj\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28B3B717-A610-4e32-8555-B8BA4779CF8A}\ = "KwAddr Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28B3B717-A610-4e32-8555-B8BA4779CF8A}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28B3B717-A610-4e32-8555-B8BA4779CF8A}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\KwAddr.IEHlprObj\CurVer\ = "KwAddr.IEHlprObj.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\KwAddr.IEHlprObj	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28B3B717-A610-4e32-8555-B8BA4779CF8A}\VersionIndependentProgID\ = "KwAddr.IEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28B3B717-A610-4e32-8555-B8BA4779CF8A}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{28B3B716-A610-4E32-8555-B8BA4779CF8A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{28B3B716-A610-4E32-8555-B8BA4779CF8A}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{28B3B716-A610-4E32-8555-B8BA4779CF8A}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}\TypeLib\ = "{28B3B716-A610-4E32-8555-B8BA4779CF8A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28B3B717-A610-4e32-8555-B8BA4779CF8A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28B3B717-A610-4e32-8555-B8BA4779CF8A}\ProgID\ = "KwAddr.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{28B3B717-A610-4e32-8555-B8BA4779CF8A}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{28B3B716-A610-4E32-8555-B8BA4779CF8A}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28B3B715-A610-4E32-8555-B8BA4779CF8A}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\KwAddr.IEHlprObj.1\ = "KwAddr Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\KwAddr.IEHlprObj.1\CLSID\ = "{28B3B717-A610-4e32-8555-B8BA4779CF8A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{28B3B716-A610-4E32-8555-B8BA4779CF8A}\1.0\FLAGS\ = "0"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5032 wrote to memory of 4792	5032	regsvr32.exe	83
PID 5032 wrote to memory of 4792	5032	regsvr32.exe	83
PID 5032 wrote to memory of 4792	5032	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$TEMP\modules\addr.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$TEMP\modules\addr.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4792

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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