Analysis

  • max time kernel
    87s
  • max time network
    92s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-04-2024 15:13

General

  • Target

    Discord volume up.exe

  • Size

    44KB

  • MD5

    caf2bee2bab72cba44e7a48ce122a802

  • SHA1

    609a5c723e50f499f05169768fa6a6a595e0e9f5

  • SHA256

    8407cdff15fb5f5fda9319233ed36514319cb9f0beca3ccd070dfeeae941e75f

  • SHA512

    7ecd09fd23e319c1c88accde2263012b72ac59b8a57c54a14d68de0d9590487c23ba03c648107a0e536caa3ca4badfb6083a7923f17571a59985977f4efc2750

  • SSDEEP

    768:xmL9j0QY8YwFZomMvuZKLCkTjhNKZKfgm3Eh+BlN96:QLbLY2R6LCkT7F7EAHN96

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/1232345926203609129/boj6_wrTqBY1eXKl-xhVfTv2GmMDL3mi4GSx8zi2Aw9sBBtbDDaBWq3UFN2rItebxxjd

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 4 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\Discord volume up.exe
    "C:\Users\Admin\AppData\Local\Temp\Discord volume up.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:1184
  • 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=1328 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4784

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1184-0-0x0000000000050000-0x0000000000060000-memory.dmp

      Filesize

      64KB

    • memory/1184-1-0x00007FFA36590000-0x00007FFA37051000-memory.dmp

      Filesize

      10.8MB

    • memory/1184-2-0x0000000000880000-0x0000000000890000-memory.dmp

      Filesize

      64KB

    • memory/1184-8-0x00007FFA36590000-0x00007FFA37051000-memory.dmp

      Filesize

      10.8MB

    • memory/1184-9-0x0000000000880000-0x0000000000890000-memory.dmp

      Filesize

      64KB

    • memory/1184-11-0x00007FFA36590000-0x00007FFA37051000-memory.dmp

      Filesize

      10.8MB