Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    15-10-2024 17:00

General

  • Target

    48f776db4745b9603b6009cf16ff4833_JaffaCakes118.exe

  • Size

    42KB

  • MD5

    48f776db4745b9603b6009cf16ff4833

  • SHA1

    8757ba966a8106c36d86028de3ec4ccf0e21f263

  • SHA256

    2e9fcf3cd2ef7358769bc9c975bdaa1049c93c5c319148822dc330dff9168499

  • SHA512

    fe7c631a5978dd8f918b7cab35ae589f770d014897c9cf3fd6ed17c3abb26f4e094f9ef63df87fc1c327df01a67a7688293ea366865c5264ce813da63de47ebe

  • SSDEEP

    768:skxkdxCGO1rtQ7YBluZaL4JTj2KZKfgm3Eh02:axm1r1BVL4JTKF7Ee2

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/875571745287995442/1CZvU_ejEwGoKJVK74IWSupjTg3uoUI-b2iqJdpvxOR-brI6JCVoncsk75uuFgsHdngB

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 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\48f776db4745b9603b6009cf16ff4833_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\48f776db4745b9603b6009cf16ff4833_JaffaCakes118.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:2352
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2352 -s 1400
      2⤵
        PID:2916

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2352-0-0x000007FEF6643000-0x000007FEF6644000-memory.dmp

      Filesize

      4KB

    • memory/2352-1-0x00000000011E0000-0x00000000011F0000-memory.dmp

      Filesize

      64KB

    • memory/2352-2-0x000007FEF6640000-0x000007FEF702C000-memory.dmp

      Filesize

      9.9MB

    • memory/2352-3-0x000007FEF6643000-0x000007FEF6644000-memory.dmp

      Filesize

      4KB

    • memory/2352-4-0x000007FEF6640000-0x000007FEF702C000-memory.dmp

      Filesize

      9.9MB

    • memory/2352-5-0x000007FEF6640000-0x000007FEF702C000-memory.dmp

      Filesize

      9.9MB