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Analysis

  • max time kernel
    138s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/06/2024, 16:54

General

  • Target

    16c3c0e15e47742b59ec5b5c7188a558_JaffaCakes118.dll

  • Size

    763KB

  • MD5

    16c3c0e15e47742b59ec5b5c7188a558

  • SHA1

    74b61c3306a22bd8bea29a332045ebe178ab1b31

  • SHA256

    55982eccc1fe2e492d5a53e0e6d5b881641c96bc2763126b716a7ef480bbdfec

  • SHA512

    c4ab9a61d11517ef678a0bbe32f2226898de5a6afe672947d16574ca68f44cef74324b8bb4cd1d7ceacaef791d2448ce61fe076231afc1dad43995e85982b40c

  • SSDEEP

    12288:8DtSLQX8I6T4P9oAfV58ff4QUBfUcgLEXT7YwneETUvwUMqtQLrac:8Us8IB9oAfV5gf4TB1gLEnYAeE+wDfn

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\16c3c0e15e47742b59ec5b5c7188a558_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1592
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\16c3c0e15e47742b59ec5b5c7188a558_JaffaCakes118.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1816
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2988
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2988 -s 528
          4⤵
          • Program crash
          PID:2680
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2988 -ip 2988
    1⤵
      PID:3380

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\~TM9E53.tmp

      Filesize

      1.6MB

      MD5

      4f3387277ccbd6d1f21ac5c07fe4ca68

      SHA1

      e16506f662dc92023bf82def1d621497c8ab5890

      SHA256

      767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

      SHA512

      9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

    • C:\Windows\SysWOW64\rundll32mgr.exe

      Filesize

      106KB

      MD5

      fe36fb1073e6f8fa14d7250501a29aaf

      SHA1

      6c7e01278362797dabcff3e666b68227cb9af10f

      SHA256

      f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

      SHA512

      8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

    • memory/1816-3-0x0000000074C30000-0x0000000074CF4000-memory.dmp

      Filesize

      784KB

    • memory/2988-5-0x0000000000400000-0x000000000042A000-memory.dmp

      Filesize

      168KB