Analysis

  • max time kernel
    152s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-04-2024 15:31

General

  • Target

    f3c868afe1a58261340bf251d20211d8_JaffaCakes118.exe

  • Size

    55KB

  • MD5

    f3c868afe1a58261340bf251d20211d8

  • SHA1

    a8e1be0cb00b8e825d0232e3e7c2cbda8e0484f9

  • SHA256

    9869ded93a52372e8e5ad3e9378ee6248dd57d9cbd5ec38ac709b5e38b9f7d16

  • SHA512

    a06669e4da2870c341e8701d790e80be177b2fc4062a9d2a81863dae3135e73e550a83acc00d1ae889f5795b146d5a4223181e756d9e560f72ee0ec9c19534dc

  • SSDEEP

    768:5B3CApzob/YTwTjYFdGf0WBREhdz0PzzAX:fLNa/Y8TUUnEUPzE

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/875430018560442368/MavU76NAbE8srbsu3sdD1pvTY4Bu5Owj9FB7cxvFbCZpaeNLeoQyo_OCWVfgBexfZb8W

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.

  • 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\f3c868afe1a58261340bf251d20211d8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f3c868afe1a58261340bf251d20211d8_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)
    • Enumerates system info in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:3696
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4088 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2948

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3696-0-0x0000000000B10000-0x0000000000B24000-memory.dmp

      Filesize

      80KB

    • memory/3696-1-0x00007FFFD6D20000-0x00007FFFD77E1000-memory.dmp

      Filesize

      10.8MB

    • memory/3696-2-0x0000000002CA0000-0x0000000002CB0000-memory.dmp

      Filesize

      64KB

    • memory/3696-8-0x00007FFFD6D20000-0x00007FFFD77E1000-memory.dmp

      Filesize

      10.8MB

    • memory/3696-9-0x0000000002CA0000-0x0000000002CB0000-memory.dmp

      Filesize

      64KB

    • memory/3696-10-0x00007FFFD6D20000-0x00007FFFD77E1000-memory.dmp

      Filesize

      10.8MB