Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    19/03/2025, 23:24

General

  • Target

    VortexNuker1.42.exe

  • Size

    279KB

  • MD5

    207f8d8cc0950ff123508360f40d187d

  • SHA1

    be3e5514551c68ad5b45b641621fcfd71797da5c

  • SHA256

    2876fe40976ecb099dfa01f066afc303bf2031a812d3b150896523ded9a865a8

  • SHA512

    d807019a0f164c44c4bffbb72a84255412c7e588b161cc1acbb170d541ac3a6ca8243b29cf8aaded537d90de03e7b283070c242bdb6a59ee1126a29d3c3efc61

  • SSDEEP

    3072:PmWL9TbF7EdANMe6rtVn+V6WBvAYioEefM9HZ5n3jTZakMhg+M4aluJrp/6fHC:PmWUjDqzBvA9ve4bn3jNa0+MEJt/D

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/1352056092800061442/3CzW1cCaNZTbI4VuvNwVmMh68Q--8Gdw0gWMKHle7Np63DV39kvHq5YBo3g8N66-juC8

Signatures

  • Mercurial Grabber Stealer

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

  • Mercurialgrabber family
  • 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 3 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 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.

  • 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
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VortexNuker1.42.exe
    "C:\Users\Admin\AppData\Local\Temp\VortexNuker1.42.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)
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2344 -s 1400
      2⤵
        PID:2800

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2344-0-0x000007FEF5AB3000-0x000007FEF5AB4000-memory.dmp

      Filesize

      4KB

    • memory/2344-1-0x0000000000220000-0x000000000026A000-memory.dmp

      Filesize

      296KB

    • memory/2344-2-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

      Filesize

      9.9MB

    • memory/2344-3-0x000007FEF5AB3000-0x000007FEF5AB4000-memory.dmp

      Filesize

      4KB

    • memory/2344-4-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

      Filesize

      9.9MB

    • memory/2344-5-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

      Filesize

      9.9MB