Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-06-2024 06:41

General

  • Target

    03b9785568f7a6fd0b5a1f4ea78452c1_JaffaCakes118.exe

  • Size

    232KB

  • MD5

    03b9785568f7a6fd0b5a1f4ea78452c1

  • SHA1

    282c2f00bf6f475826e721b40ca79318d60145af

  • SHA256

    25705af0a5b07fd75329f3f060a77849aab5c4a2bb93c4d3d5b4e30cdc7c5493

  • SHA512

    41fd7866e09a36884680eaf2ef5e5d07b7849077a831b4686ba08293d007d0be7f86d4bccd83a7d39cf27dfcbf818b4536ce673ec481d62cbd187bdf6b29f3af

  • SSDEEP

    6144:YkbtRFd4KupxxrYFOJghXs+q8Fpg7gQ8+:YkbtRFzun6KN8Fpgh

Malware Config

Signatures

  • ASPack v2.12-2.42 2 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 6 IoCs
  • Program crash 1 IoCs
  • Modifies registry class 42 IoCs
  • Suspicious behavior: EnumeratesProcesses 34 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3512
      • C:\Users\Admin\AppData\Local\Temp\03b9785568f7a6fd0b5a1f4ea78452c1_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\03b9785568f7a6fd0b5a1f4ea78452c1_JaffaCakes118.exe"
        2⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3524
        • C:\Windows\SysWOW64\regsvr32.exe
          C:\Windows\system32\regsvr32.exe /s C:\Windows\system32\EO0CRKl20.dll
          3⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          PID:2964
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3524 -s 476
          3⤵
          • Program crash
          PID:3248
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 3524 -ip 3524
      1⤵
        PID:2984

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Windows\SysWOW64\EO0CRKl10.dll

        Filesize

        83KB

        MD5

        7daa7e8ae1b87690d652bd324d372a9b

        SHA1

        64606cbc9f319662f315d7fdf8a5ed8b9ec3f163

        SHA256

        52669174c55fcd0fa6af47044205bee4d3d84bfdb85ad81574e2f45e39db98ff

        SHA512

        e312f2c74dd31da7463fc525716c0f9935e11d60130eb232ea525ff8a35187fefbbf71fdb1c99b91507b5e7f41eb990f0e0196c3663903a2cca43e6774bdfd5c

      • C:\Windows\SysWOW64\EO0CRKl20.dll

        Filesize

        87KB

        MD5

        59cc50390cad44b281b20bb771c44835

        SHA1

        62c941343233c001a6a095a33a60eb47d6f55500

        SHA256

        4ae5bf8ef6335e5a06fa3232de43e50ee06f2c8d51c6a1e341d40cd03fb489b5

        SHA512

        81401ee0fea1bfc543bf16d3cd4b785a70acc5f5c4dc15b737e46409c98d23a4f265a996444bd614529d4886a03916b76223023b874d91d3c4aab36c8e69bbac

      • memory/2964-8-0x0000000010000000-0x000000001006F000-memory.dmp

        Filesize

        444KB

      • memory/3524-0-0x0000000000400000-0x00000000004AC000-memory.dmp

        Filesize

        688KB

      • memory/3524-13-0x0000000010000000-0x0000000010077000-memory.dmp

        Filesize

        476KB

      • memory/3524-14-0x0000000000400000-0x00000000004AC000-memory.dmp

        Filesize

        688KB