aa622559ac17946f767910f72e58b3bad535d3df171559dee6467b65cca13001

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 02:32

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General

Target
aa622559ac17946f767910f72e58b3bad535d3df171559dee6467b65cca13001.dll
Size 85KB
Sample240517-c1b8nsdc71
SHA256 aa622559ac17946f767910f72e58b3bad535d3df171559dee6467b65cca13001
MD5 c5cf31ae7ae0d8e97a3c58b789ca3080
SHA1 c78fc1447d7e2d85ef40684d6aba82e0224b055e
SHA512 bc2fb9022a3a0a1e2e0e06f0356d5a0651aec897ceca9de4339a82ad9b89e52022064b47d7456fed5b9755aa34451490442124aa9da1ede40464d67a3f003e61
SSDEEP 1536:CTfxCso6c48NlN/I9cUeUAczkOlwplQYv+62:axi6c48N3/WcFUXl4ac+6
MD5 SHA1 SHA512 SSDEEP

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\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}\ = "MediaPlayerV1alpha243"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 34 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B1731135-2F49-4E77-B7F9-8AB3F8DF9DC2}\1.1\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B1731135-2F49-4E77-B7F9-8AB3F8DF9DC2}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}\ = "IMediaPlayerV1alpha243BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}\TypeLib\ = "{b1731135-2f49-4e77-b7f9-8ab3f8df9dc2}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}\Version\ = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B1731135-2F49-4E77-B7F9-8AB3F8DF9DC2}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}\TypeLib\ = "{B1731135-2F49-4E77-B7F9-8AB3F8DF9DC2}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B1731135-2F49-4E77-B7F9-8AB3F8DF9DC2}\1.1\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B1731135-2F49-4E77-B7F9-8AB3F8DF9DC2}\1.1\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}\ = "MediaPlayerV1alpha243"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B1731135-2F49-4E77-B7F9-8AB3F8DF9DC2}\1.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\aa622559ac17946f767910f72e58b3bad535d3df171559dee6467b65cca13001.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B1731135-2F49-4E77-B7F9-8AB3F8DF9DC2}\1.1\ = "MediaPlayerV1alpha243Lib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}\ = "IMediaPlayerV1alpha243BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63d2c872-27ed-4b40-aea5-9365f8cd48d4}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B1731135-2F49-4E77-B7F9-8AB3F8DF9DC2}\1.1\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B1731135-2F49-4E77-B7F9-8AB3F8DF9DC2}\1.1\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B1731135-2F49-4E77-B7F9-8AB3F8DF9DC2}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\aa622559ac17946f767910f72e58b3bad535d3df171559dee6467b65cca13001.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3111B8B7-6E66-4B27-8764-9D4AAE58B74A}\TypeLib\ = "{B1731135-2F49-4E77-B7F9-8AB3F8DF9DC2}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 652 wrote to memory of 4656	652	regsvr32.exe	90
PID 652 wrote to memory of 4656	652	regsvr32.exe	90
PID 652 wrote to memory of 4656	652	regsvr32.exe	90

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\aa622559ac17946f767910f72e58b3bad535d3df171559dee6467b65cca13001.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:652
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\aa622559ac17946f767910f72e58b3bad535d3df171559dee6467b65cca13001.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4656

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 --mojo-platform-channel-handle=3712 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:1856

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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