Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 00:22

General

  • Target

    JaffaCakes118_d36f7a42207d447e9100a73c9c6c86caa15c4fa6.exe

  • Size

    42KB

  • MD5

    4d567d7f3450a554c9f29b2c0f548730

  • SHA1

    d36f7a42207d447e9100a73c9c6c86caa15c4fa6

  • SHA256

    a4faa6b5a2fb9b285f1ab42ea5df2f29579dcafbe0ebfb1a4c01b19f4a809d2d

  • SHA512

    4b40fe2cbbcc6a2b897d4731de06e47afa7c097b82ae2ac77bab449b6f17d0250cf3b55127ada8e74f113c66fb517696ca67ecf26c24d6d1c33c39de3abcd12c

  • SSDEEP

    768:oOdx+GZKKqqI2xnrZDzuZELGZTjuKZKfgm3EhZ/:oOGONqH2xlLLGZTCF7Ev/

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/935649173599047730/Amb2iJjE-BIZXpjqj2qYKxUrx4_FO_A8CaejXf_BIiFAmtpJ8rrDJ2VN7yDAPlHG51fo

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 4 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.

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d36f7a42207d447e9100a73c9c6c86caa15c4fa6.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d36f7a42207d447e9100a73c9c6c86caa15c4fa6.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)
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2132
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2132 -s 1312
      2⤵
        PID:2908

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2132-0-0x000007FEF5193000-0x000007FEF5194000-memory.dmp

      Filesize

      4KB

    • memory/2132-1-0x0000000000100000-0x0000000000110000-memory.dmp

      Filesize

      64KB

    • memory/2132-2-0x000007FEF5190000-0x000007FEF5B7C000-memory.dmp

      Filesize

      9.9MB

    • memory/2132-3-0x000007FEF5193000-0x000007FEF5194000-memory.dmp

      Filesize

      4KB

    • memory/2132-4-0x000007FEF5190000-0x000007FEF5B7C000-memory.dmp

      Filesize

      9.9MB

    • memory/2132-8-0x000007FEF5190000-0x000007FEF5B7C000-memory.dmp

      Filesize

      9.9MB