Analysis

  • max time kernel
    94s
  • max time network
    102s
  • 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 08:01

General

  • Target

    04f273a042e83eebdc138f32a9547df5_JaffaCakes118.exe

  • Size

    62KB

  • MD5

    04f273a042e83eebdc138f32a9547df5

  • SHA1

    2fa809ebd777b16647987cd89173cbd1cd007000

  • SHA256

    f5097070861eef9727641d57a9be1ef130da95ba470b35946f25179788034762

  • SHA512

    064f5c7d32c96319fd981d5032124850839d31689d44790a16a8343f3a8c90843335a0998b55103382d0c1e65b7ecc8d34e59b33faf01c48794ea7a4af6d56f6

  • SSDEEP

    768:KKsMqCXfVcWpjDMLoiANIUcdYLDwUzc80gmq3oP/oDT:KKseVMLoiAPRr/0O8/oP

Malware Config

Signatures

  • Nitro

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

  • Renames multiple (73) 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\04f273a042e83eebdc138f32a9547df5_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\04f273a042e83eebdc138f32a9547df5_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:3676
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4992
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic csproduct get uuid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2684
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3676 -s 2076
      2⤵
      • Program crash
      PID:2668
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3676 -s 2216
      2⤵
      • Program crash
      PID:1896
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3676 -ip 3676
    1⤵
      PID:3984
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3676 -ip 3676
      1⤵
        PID:4752

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3676-0-0x00000000749BE000-0x00000000749BF000-memory.dmp

        Filesize

        4KB

      • memory/3676-1-0x0000000000BC0000-0x0000000000BD6000-memory.dmp

        Filesize

        88KB

      • memory/3676-2-0x0000000005960000-0x0000000005F04000-memory.dmp

        Filesize

        5.6MB

      • memory/3676-3-0x0000000005490000-0x0000000005522000-memory.dmp

        Filesize

        584KB

      • memory/3676-4-0x00000000749B0000-0x0000000075160000-memory.dmp

        Filesize

        7.7MB

      • memory/3676-27-0x00000000749BE000-0x00000000749BF000-memory.dmp

        Filesize

        4KB

      • memory/3676-29-0x00000000749B0000-0x0000000075160000-memory.dmp

        Filesize

        7.7MB

      • memory/3676-82-0x0000000006180000-0x000000000618A000-memory.dmp

        Filesize

        40KB

      • memory/3676-83-0x00000000749B0000-0x0000000075160000-memory.dmp

        Filesize

        7.7MB