Analysis

  • max time kernel
    23s
  • max time network
    25s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250314-en
  • resource tags

    arch:x64arch:x86image:win11-20250314-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    28/03/2025, 14:03

General

  • Target

    RobloxGameGrabber.exe

  • Size

    41KB

  • MD5

    9036134c2be4ab6b93490feaf419d4bf

  • SHA1

    9e4157ed13486a5af5e5691a6e4ffc8f26c7d41b

  • SHA256

    9611ea81bb2bda5a577acd871994640ed4bcd18aff6ddeac7e04ac1fa03b0745

  • SHA512

    b5c43a17018746a99aecbdadd9be913bd2cc5aeecc197f62174d8a6d2a145c2b9e6490e744100eb0f2694210ea400e52bb81234d575cd04fbd0af0d2746641d2

  • SSDEEP

    768:WscaIyIS+7YxGPvSPYwXuZEexWTjRKZKfgm3EhCi:1c1VYZPlexWTVF7EUi

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/1355108897274335281/KUJHOdJ9fi_OBnTO2gCQuVLlon_zu1H8UnvtnoGPgzOWPkGZQ6u9AbDxJah1n7h7C1TE

Signatures

  • Mercurial Grabber Stealer

    Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

  • Mercurialgrabber family
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Checks SCSI registry key(s) 3 TTPs 1 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RobloxGameGrabber.exe
    "C:\Users\Admin\AppData\Local\Temp\RobloxGameGrabber.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Checks SCSI registry key(s)
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    PID:3452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3452-1-0x00007FFAD25B3000-0x00007FFAD25B5000-memory.dmp

    Filesize

    8KB

  • memory/3452-0-0x0000000000E30000-0x0000000000E40000-memory.dmp

    Filesize

    64KB

  • memory/3452-2-0x00007FFAD25B0000-0x00007FFAD3072000-memory.dmp

    Filesize

    10.8MB

  • memory/3452-3-0x00007FFAD25B0000-0x00007FFAD3072000-memory.dmp

    Filesize

    10.8MB

  • memory/3452-7-0x00007FFAD25B0000-0x00007FFAD3072000-memory.dmp

    Filesize

    10.8MB