General

  • Target

    RobloxPlayerLauncher.exe

  • Size

    2.0MB

  • Sample

    230420-ljqt6sah7z

  • MD5

    c519783a8ff04c41f07f207c47fde116

  • SHA1

    19d600c06cf47cb9450747a2a308058c35f4ede9

  • SHA256

    431b40284e85c47fe1c4bdca9d447e0c8487b39e45fa2a14e110f1223f0454d2

  • SHA512

    0129cba7fece385a8ce048c195dafd8e9a86af692c02625a5112112bfd0f38c24c577bc3d0da9cf161d57d1f5ffbc674a84e737675bd8b09e43cbb92c2fe7cbe

  • SSDEEP

    49152:wRjpSI1gshnv4UFTd0azLH7ZT+5MIPMQ3dSbNT3b6F:wOI1Thnv4M3bw

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/1088174595397406740/WMYFRBEZQQLgBFp1ne4l5UchdResrLNV9DT68tQiZZl_cwopBsm0TY719ZARI4Tilmvi

Targets

    • Target

      RobloxPlayerLauncher.exe

    • Size

      2.0MB

    • MD5

      c519783a8ff04c41f07f207c47fde116

    • SHA1

      19d600c06cf47cb9450747a2a308058c35f4ede9

    • SHA256

      431b40284e85c47fe1c4bdca9d447e0c8487b39e45fa2a14e110f1223f0454d2

    • SHA512

      0129cba7fece385a8ce048c195dafd8e9a86af692c02625a5112112bfd0f38c24c577bc3d0da9cf161d57d1f5ffbc674a84e737675bd8b09e43cbb92c2fe7cbe

    • SSDEEP

      49152:wRjpSI1gshnv4UFTd0azLH7ZT+5MIPMQ3dSbNT3b6F:wOI1Thnv4M3bw

    • Mercurial Grabber Stealer

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

    • Looks for VirtualBox Guest Additions in registry

    • Downloads MZ/PE file

    • Looks for VMWare Tools registry key

    • Sets file execution options in registry

    • Checks BIOS information in registry

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Registers COM server for autorun

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

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

    • Checks system information in the registry

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

MITRE ATT&CK Enterprise v6

Tasks