Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 06:58

General

  • Target

    output.exe

  • Size

    42KB

  • MD5

    2b844e8e60c62764e5b262595327e73e

  • SHA1

    48d2adb709fd2449d5787d4d002e506bdc858fac

  • SHA256

    7e68f6b1aac3c973b9a226e2c44d9cb84283512c4dcb1f612deee7e69723ad95

  • SHA512

    f861d47b042bdaf9a0f2258ca477d0fd969fb260345e49ec7aedff2d9d802ec5cf21cdfafbc5951d12de4508dc4b0112f16a2691d6886ea71c281bd35b89c290

  • SSDEEP

    768:gLIBZ6a14pDtsOuZ2LecTjUKZKfgm3EhJB:H1+PsGLecTgF7ETB

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/1232394495962775595/Rp8wIvsvQzT0NY5mCKbpBT_ZIY4JozltmMHzcGWbJafnSsQJ1VJ_PNkBBdUVK8UthuDr

Signatures

  • Mercurial Grabber Stealer

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

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\output.exe
    "C:\Users\Admin\AppData\Local\Temp\output.exe"
    1⤵
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1972
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1972 -s 1808
      2⤵
        PID:2580

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1972-0-0x0000000000E20000-0x0000000000E30000-memory.dmp

      Filesize

      64KB

    • memory/1972-1-0x000007FEF5B80000-0x000007FEF656C000-memory.dmp

      Filesize

      9.9MB

    • memory/1972-2-0x000000001AD00000-0x000000001AD80000-memory.dmp

      Filesize

      512KB

    • memory/1972-3-0x000007FEF5B80000-0x000007FEF656C000-memory.dmp

      Filesize

      9.9MB