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Analysis

  • max time kernel
    125s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/03/2024, 17:22

General

  • Target

    de8b75370416b592f0545e700f594bb3.exe

  • Size

    117KB

  • MD5

    de8b75370416b592f0545e700f594bb3

  • SHA1

    1b444bbace2a9a88d244f0037bce199687fc868f

  • SHA256

    65aa73a25ac570c128a19f9f4d46a68a063c180b95b4da48850e766b3d4f9ca0

  • SHA512

    e1be349ed81381f57ac38294e592d125c0a8ed33a491e3ff2c494329389e601aebfb69a37fed6f37280a489c417293db391e8a233e414e01e1a8ebdbb82708b9

  • SSDEEP

    3072:7DFWfJrrUdF9oMqPYGnC2ZFv8C85W2Ssn13UtjY8kfJCnzXw/X:7hWBrA/Ug6qvn5U5fCk

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/872878158670606357/hz-2xa3EUvDeS2kj_nD_hKe_hYX37_dCHSHGxMSgPHpZ7kGa2SPuDqt2R37YU-kZrkJD

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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\de8b75370416b592f0545e700f594bb3.exe
    "C:\Users\Admin\AppData\Local\Temp\de8b75370416b592f0545e700f594bb3.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4744
    • C:\Users\Admin\AppData\Local\Temp\Robux generator v1.04.exe
      "C:\Users\Admin\AppData\Local\Temp\Robux generator v1.04.exe"
      2⤵
      • Looks for VirtualBox Guest Additions in registry
      • Looks for VMWare Tools registry key
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Maps connected drives based on registry
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      PID:4888
  • 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=4828 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1588

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Robux generator v1.04.exe

      Filesize

      86KB

      MD5

      c84b89b03c7ebb704c7763a0021a6158

      SHA1

      d13baac36f2bec9baa7dce865decc8951fc6f105

      SHA256

      77d8c3bb5cbc930cea146fec8c2fbdcb0f7ed4adecf43fcda7f349f05ce1b40a

      SHA512

      014f8d227395df2588b5892934ec5e779ffcbbadb9603115943c90646a21c2107430176b45acd90ae8869a40af876ee24a47f4a0036424bbc32f86963f02f781

    • memory/4744-0-0x0000000000C80000-0x0000000000CA2000-memory.dmp

      Filesize

      136KB

    • memory/4744-1-0x00007FFC228D0000-0x00007FFC23391000-memory.dmp

      Filesize

      10.8MB

    • memory/4744-2-0x000000001B7A0000-0x000000001B7B0000-memory.dmp

      Filesize

      64KB

    • memory/4744-16-0x00007FFC228D0000-0x00007FFC23391000-memory.dmp

      Filesize

      10.8MB

    • memory/4888-17-0x0000000000640000-0x000000000065A000-memory.dmp

      Filesize

      104KB

    • memory/4888-18-0x00007FFC228D0000-0x00007FFC23391000-memory.dmp

      Filesize

      10.8MB

    • memory/4888-19-0x00000000025C0000-0x00000000025D0000-memory.dmp

      Filesize

      64KB

    • memory/4888-25-0x00007FFC228D0000-0x00007FFC23391000-memory.dmp

      Filesize

      10.8MB