Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2024, 15:58

General

  • Target

    0f7e92b27db58a84114aca132062e98b_JaffaCakes118.dll

  • Size

    690KB

  • MD5

    0f7e92b27db58a84114aca132062e98b

  • SHA1

    330f90ae520483e47b163f8425a1f9fa074ed4a6

  • SHA256

    b67fa7aa75df8ac6c3c63effcac744b675028fc7b57384bbc69b5f6134522abb

  • SHA512

    903b3d4d52d68b2455b4035147ca4943022ab342f963ae7f54bc46d3778c8454757f2a19a04d6eeedd2047757c0fd9db4544643b880f558e2bd108fffc4d0ccf

  • SSDEEP

    12288:QdR3x1PT2kmudWlL4IDvTaA4k+vX5W03/Lp7UMnV6Q8:Qj6km0WSIDvTam+vX5W0PTV6J

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
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 1 IoCs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0f7e92b27db58a84114aca132062e98b_JaffaCakes118.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:644
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\0f7e92b27db58a84114aca132062e98b_JaffaCakes118.dll
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4756
      • C:\Windows\SysWOW64\regsvr32mgr.exe
        C:\Windows\SysWOW64\regsvr32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4824
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4824 -s 536
          4⤵
          • Program crash
          PID:4808
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4824 -ip 4824
    1⤵
      PID:408

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\~TM9981.tmp

            Filesize

            1.6MB

            MD5

            4f3387277ccbd6d1f21ac5c07fe4ca68

            SHA1

            e16506f662dc92023bf82def1d621497c8ab5890

            SHA256

            767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

            SHA512

            9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

          • C:\Windows\SysWOW64\regsvr32mgr.exe

            Filesize

            157KB

            MD5

            1dcfb79162fe6a7047b30f1446c2fae5

            SHA1

            9c0296da3f5344a7e933c57e7d427c4de1a53bb4

            SHA256

            3c6033da9f18e528997cedfd12dfb4f76ee6124e675965f379201777a02d5655

            SHA512

            c405b032da32dfb1c4d5bd1175ddf8f0a72849fa4d83cc3342c6e43897ec4766a43832288ac9ba8b892d176fe9584bd518d8c6d09860b61eb3af83670ae33a91

          • memory/4756-0-0x0000000074DF0000-0x0000000074E9F000-memory.dmp

            Filesize

            700KB

          • memory/4824-4-0x0000000000400000-0x0000000000431000-memory.dmp

            Filesize

            196KB

          • memory/4824-6-0x0000000000400000-0x0000000000431000-memory.dmp

            Filesize

            196KB

          • memory/4824-7-0x0000000000400000-0x0000000000431000-memory.dmp

            Filesize

            196KB