Analysis

  • max time kernel
    93s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-10-2024 03:44

General

  • Target

    043fbd84e0a00c3fbf71b88a3e2739bc_JaffaCakes118.exe

  • Size

    60KB

  • MD5

    043fbd84e0a00c3fbf71b88a3e2739bc

  • SHA1

    02f42bcab70e675d309a89b34125461cde1a7ea5

  • SHA256

    39c7f0761cb71570fc1a3dda81f18f97ac6d58e15b7b24cdadc9cf60dffd18a1

  • SHA512

    26506f5843c573f2b1a8c4923a4b38d83e998a6a34d1ce087e127a9099fb04f7baa5d6d4bc166ccd4094220054f569e54bac9403bd4944d62ca225bd0bc16660

  • SSDEEP

    768:mOucKn7n1JXDNANIUNbvLDwUzc80gmq3oP/oDk:mO2XDNAPNr/0O8/og

Malware Config

Signatures

  • Nitro

    A ransomware that demands Discord nitro gift codes to decrypt files.

  • Renames multiple (80) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 5 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 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.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\043fbd84e0a00c3fbf71b88a3e2739bc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\043fbd84e0a00c3fbf71b88a3e2739bc_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2588
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3520
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic csproduct get uuid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4424
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2588 -s 1584
      2⤵
      • Program crash
      PID:4756
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2588 -s 2060
      2⤵
      • Program crash
      PID:2156
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 2588 -ip 2588
    1⤵
      PID:1152
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2588 -ip 2588
      1⤵
        PID:4584

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2588-0-0x00000000750DE000-0x00000000750DF000-memory.dmp

        Filesize

        4KB

      • memory/2588-1-0x0000000000F50000-0x0000000000F66000-memory.dmp

        Filesize

        88KB

      • memory/2588-2-0x0000000005E60000-0x0000000006404000-memory.dmp

        Filesize

        5.6MB

      • memory/2588-3-0x0000000005950000-0x00000000059E2000-memory.dmp

        Filesize

        584KB

      • memory/2588-4-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB

      • memory/2588-26-0x00000000750DE000-0x00000000750DF000-memory.dmp

        Filesize

        4KB

      • memory/2588-30-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB

      • memory/2588-89-0x0000000007300000-0x000000000730A000-memory.dmp

        Filesize

        40KB

      • memory/2588-90-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB