c76c9f67cefd043d944fd56e805c3480c572a4a2064c87ed350ae47fe764d4f6

Analysis

max time kernel
93s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
02/02/2024, 13:20

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
899d4faaf51b5681ff07f015589e71ec.dll
Size 154KB
Sample240202-qllqfshcap
SHA256 c76c9f67cefd043d944fd56e805c3480c572a4a2064c87ed350ae47fe764d4f6
MD5 899d4faaf51b5681ff07f015589e71ec
SHA1 879adcea0eeaf32a99076383078aeba4e4bcc04f
SHA512 800955970d33ab08d109deaa41047f256e8d835a5a78f415446f4b9f92d7705fb8889c9c7c5f6c4f941cb16a88f8165e5092f8461d95a14539e22cdc163fd383
SSDEEP 3072:u1J/bW6aO6nq4OPePS0k363jJNpLhppRVGaq5yUj5Km:GcOxfP4S0+MJfLv7Vyom
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware persistence stealer

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\{74a4100d-38b7-3e8c-be4f-d7c1038ace33} = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\899d4faaf51b5681ff07f015589e71ec.dll\" DllStart"	regsvr32.exe

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\{7f5e4a39-d221-3940-fdf7-56a63dc16b70}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7f5e4a39-d221-3940-fdf7-56a63dc16b70}\NoExplorer = "\"\""	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7f5e4a39-d221-3940-fdf7-56a63dc16b70}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7f5e4a39-d221-3940-fdf7-56a63dc16b70}\ = "superiorads browser optimizer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7f5e4a39-d221-3940-fdf7-56a63dc16b70}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7f5e4a39-d221-3940-fdf7-56a63dc16b70}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\899d4faaf51b5681ff07f015589e71ec.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7f5e4a39-d221-3940-fdf7-56a63dc16b70}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 536	3028	regsvr32.exe	85
PID 3028 wrote to memory of 536	3028	regsvr32.exe	85
PID 3028 wrote to memory of 536	3028	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\899d4faaf51b5681ff07f015589e71ec.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\899d4faaf51b5681ff07f015589e71ec.dll
  2⤵
  - Adds Run key to start application
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

Replay Monitor

Loading Replay Monitor...

Downloads