Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/03/2024, 13:37

General

  • Target
    d3a6a6acd5feb396928e57f2b029ff2f.exe
  • Size 82KB
  • Sample240318-qxa34aaf4v
  • SHA256 b3eba21c557da13a56a785261b7ac6ff1f5a3214862c37b12b898d6cf3b9e5c5
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • mercurialgrabber

C2
  • https://discord.com/api/webhooks/863041632630472715/l4-YNBHng5liJ4-fA20g3yjH25VzpLYVe65sQ2OwkF_viiV2P5xGa763qKJndTY14MEA

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 2 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\d3a6a6acd5feb396928e57f2b029ff2f.exe
    "C:\Users\Admin\AppData\Local\Temp\d3a6a6acd5feb396928e57f2b029ff2f.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:5096
  • 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=1732 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1708

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/5096-0-0x0000000000DE0000-0x0000000000DFA000-memory.dmp

          memory/5096-1-0x00007FFAE2BE0000-0x00007FFAE36A1000-memory.dmp

          memory/5096-2-0x00000000016F0000-0x0000000001700000-memory.dmp

          memory/5096-8-0x00007FFAE2BE0000-0x00007FFAE36A1000-memory.dmp