Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-11-2024 04:24

General

  • Target

    8f24cb17da2bd9c0ee5c30b88a08d0bc_JaffaCakes118.exe

  • Size

    41KB

  • MD5

    8f24cb17da2bd9c0ee5c30b88a08d0bc

  • SHA1

    16998b38687809e872142334ebca11b5f720ded1

  • SHA256

    59f6bcfd71d0f09a1c44989694f9b66f224b95eac5fd2f35272d2aafcc92ef11

  • SHA512

    66b6fc2245d172bb1d8a2df38e9101f3a6f786a73766b7d16450e1df02da9dfeb26243918814cd7faabe5ee70329e9f7e060022e6dce946bd8195797c4e9b26e

  • SSDEEP

    768:oscG4A9NpBztwCuZqekWTj5KZKfgm3Ehj8:vcuBzekWT1F7El8

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/892439702202904606/AkG1dFoKBsXxM-qiwX0_1pqQPE23IlyKGPSIA9cWJXzvL1BhF9ffClKX5bHZ9L5WOq90

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
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f24cb17da2bd9c0ee5c30b88a08d0bc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8f24cb17da2bd9c0ee5c30b88a08d0bc_JaffaCakes118.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
    • Suspicious use of WriteProcessMemory
    PID:2376
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2376 -s 1328
      2⤵
        PID:2788

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2376-0-0x000007FEF5C83000-0x000007FEF5C84000-memory.dmp

      Filesize

      4KB

    • memory/2376-1-0x0000000000AA0000-0x0000000000AB0000-memory.dmp

      Filesize

      64KB

    • memory/2376-2-0x000007FEF5C80000-0x000007FEF666C000-memory.dmp

      Filesize

      9.9MB

    • memory/2376-3-0x000007FEF5C83000-0x000007FEF5C84000-memory.dmp

      Filesize

      4KB

    • memory/2376-4-0x000007FEF5C80000-0x000007FEF666C000-memory.dmp

      Filesize

      9.9MB

    • memory/2376-5-0x000007FEF5C80000-0x000007FEF666C000-memory.dmp

      Filesize

      9.9MB