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
    22-09-2024 20:07

General

  • Target

    bootstrapper v1.19..exe

  • Size

    42KB

  • MD5

    1979f144e30fe9e04df51876f532b1c4

  • SHA1

    57e431cde2459081cdd6f2b6a5e9748bc5ceec72

  • SHA256

    5b3e72313df5dbb66249aa2f961454f2afa4afbcf740bf6d8d511877d6c907ea

  • SHA512

    090249dfc3d4c98b38d5b08b0fbbfbed99a155c30e78dcc78db59ebacf621c81ea198bee4c10de359a99d3ed8cbba47cb835a6d4b6c58b37553e7b0d06a2ec98

  • SSDEEP

    768:edZds7EKfDxJuZnLrUTjT/KZKfgm3EhSs:eG7EKfDxwLrUT//F7EYs

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discordapp.com/api/webhooks/1287494730313367614/ADttPZV4JMT077jKqJ1N8O9urk62UJzmFZVMMTu_q-b-4ZuAjiwG2hAFrvkr4NyoNiSO

Signatures

  • Mercurial Grabber Stealer

    Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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.

  • 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.

  • 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\bootstrapper v1.19..exe
    "C:\Users\Admin\AppData\Local\Temp\bootstrapper v1.19..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
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2236
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2236 -s 1304
      2⤵
        PID:2696

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2236-0-0x000007FEF5BD3000-0x000007FEF5BD4000-memory.dmp

      Filesize

      4KB

    • memory/2236-1-0x00000000013D0000-0x00000000013E0000-memory.dmp

      Filesize

      64KB

    • memory/2236-2-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2236-3-0x000007FEF5BD3000-0x000007FEF5BD4000-memory.dmp

      Filesize

      4KB

    • memory/2236-4-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

      Filesize

      9.9MB