Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2024 02:57

General

  • Target

    b47660d667192eb8ff7bd90f82b96be3_JaffaCakes118.exe

  • Size

    42KB

  • MD5

    b47660d667192eb8ff7bd90f82b96be3

  • SHA1

    99b79b8354ce8daa2aebc344075922764f237291

  • SHA256

    99222d220790ce759074bf80fa779bb900e13cb799c5062d6c99f434a7de7f85

  • SHA512

    80dce47853a76bda22dc6f14563ae8ae3d687fd611928b493cea7ebef45a96e47f9519846c22bdb97608e6c616c644d6b2ce3787836b38df2396fe57d7158bd1

  • SSDEEP

    768:TuLYNqV41M76auZZLruTjgKZKfgm3Eh6X:yeqWA6FLruTEF7EAX

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/873691851314561054/UYwGmk3xyBqSE9zsMIgFURABFSgGeD6cMRnK-oGpYaJjMfyNA9rtXKWKpHvsvahhEL_D

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 2 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\b47660d667192eb8ff7bd90f82b96be3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b47660d667192eb8ff7bd90f82b96be3_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:2308
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2308 -s 1396
      2⤵
        PID:2656

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2308-0-0x000007FEF5413000-0x000007FEF5414000-memory.dmp

      Filesize

      4KB

    • memory/2308-1-0x0000000000D80000-0x0000000000D90000-memory.dmp

      Filesize

      64KB

    • memory/2308-2-0x000007FEF5410000-0x000007FEF5DFC000-memory.dmp

      Filesize

      9.9MB

    • memory/2308-3-0x000007FEF5413000-0x000007FEF5414000-memory.dmp

      Filesize

      4KB

    • memory/2308-4-0x000007FEF5410000-0x000007FEF5DFC000-memory.dmp

      Filesize

      9.9MB

    • memory/2308-5-0x000007FEF5410000-0x000007FEF5DFC000-memory.dmp

      Filesize

      9.9MB