Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    25-07-2024 00:33

General

  • Target

    6d71723555e6c7d9567848a4fcd914be_JaffaCakes118.exe

  • Size

    42KB

  • MD5

    6d71723555e6c7d9567848a4fcd914be

  • SHA1

    27e3ee5f9de32635b3b9aabf8f2d45f34ceb7ffb

  • SHA256

    d4836ef91afd1553d53e46672f3e6ed57aa00ed248721e3e4b803a5cdac05b2d

  • SHA512

    dd9fbcb1035afd6f6bd3e4a36283dd43ce65a0d29c487840e2a81caa0af6f8fc08022ca99f6b02baadbde1d9fed727df6f2028459210f278b0ccc13a355c9ba3

  • SSDEEP

    768:42oRjsDcfDxbuZdLouTjwKZKfgm3Ehwg:425DcfDxgLouT8F7Eyg

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/894021941386678303/8vlxVuPyILi6yoIahspkESMIpRtJ-5ayBMlBEHUqU183WuCJT0P6fNgaBn72XSmw3FAQ

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 3 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6d71723555e6c7d9567848a4fcd914be_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6d71723555e6c7d9567848a4fcd914be_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
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2512 -s 1796
      2⤵
        PID:2660

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2512-0-0x000007FEF6683000-0x000007FEF6684000-memory.dmp

      Filesize

      4KB

    • memory/2512-1-0x0000000000A90000-0x0000000000AA0000-memory.dmp

      Filesize

      64KB

    • memory/2512-2-0x000007FEF6680000-0x000007FEF706C000-memory.dmp

      Filesize

      9.9MB

    • memory/2512-3-0x000007FEF6680000-0x000007FEF706C000-memory.dmp

      Filesize

      9.9MB