Analysis

  • max time kernel
    1333s
  • max time network
    1155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/04/2024, 22:32

General

  • Target
    Mercurial Grabber.exe
  • Size 48KB
  • Sample240405-2f5f6aeg48
  • SHA256 496cb15b8bb0d6503b222c301c7cfbbb6d214de32b69b0cd402e6ebaeb2a3a2b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • mercurialgrabber

C2
  • https://discord.com/api/webhooks/969936040930451487/mf72QATeKW89Ml_jXHm5Gg0GOsTvPdWwtRq38PIRPQd6yxDgKPUPBfyhOYe2g2Z83rsM

Signatures

  • 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 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 2 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 3 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
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Mercurial Grabber.exe
    "C:\Users\Admin\AppData\Local\Temp\Mercurial Grabber.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
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:1604

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1604-0-0x0000000000B30000-0x0000000000B40000-memory.dmp

        memory/1604-1-0x00007FF9602D0000-0x00007FF960D91000-memory.dmp

        memory/1604-2-0x000000001B840000-0x000000001B850000-memory.dmp

        memory/1604-8-0x00007FF9602D0000-0x00007FF960D91000-memory.dmp