Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    29-08-2024 21:20

General

  • Target

    c9a892b05f775ddf569b745c6bd95a25_JaffaCakes118.exe

  • Size

    42KB

  • MD5

    c9a892b05f775ddf569b745c6bd95a25

  • SHA1

    ff709170c90d41ac2413d8a9fa7fbaa1b6e21a06

  • SHA256

    5ff7ac25f43858d6962b49f8dce580db4983cdfcc4d635fbd6085c1c90432b44

  • SHA512

    513cf5cd3cbea0d5f05774202f755b91432bcdfe093bf6814cdba87fc44c82df40747692483e1f455c37664a4d6f96556bc6f6af64cbcc21489fb70b56344b2d

  • SSDEEP

    768:ALz3dxCGO1rtQ7YBluZaLYdTjRKZKfgm3Eh3R:Atxm1r1BVLYdTlF7ExR

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/894002578583597106/mzVkoxw2rfX5M9ZzRYptqhY9Dap8FNvXzNPbMvgAot4FJ0ykAN91BaWshRYDwajmPLcR

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 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\c9a892b05f775ddf569b745c6bd95a25_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c9a892b05f775ddf569b745c6bd95a25_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:2564
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2564 -s 1396
      2⤵
        PID:2796

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2564-0-0x000007FEF55A3000-0x000007FEF55A4000-memory.dmp

      Filesize

      4KB

    • memory/2564-1-0x00000000011F0000-0x0000000001200000-memory.dmp

      Filesize

      64KB

    • memory/2564-2-0x000007FEF55A0000-0x000007FEF5F8C000-memory.dmp

      Filesize

      9.9MB

    • memory/2564-3-0x000007FEF55A3000-0x000007FEF55A4000-memory.dmp

      Filesize

      4KB

    • memory/2564-4-0x000007FEF55A0000-0x000007FEF5F8C000-memory.dmp

      Filesize

      9.9MB