Analysis

  • max time kernel
    94s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2024 09:57

General

  • Target

    93f023a1c1b505d8b4667ea3d7d58518_JaffaCakes118.dll

  • Size

    662KB

  • MD5

    93f023a1c1b505d8b4667ea3d7d58518

  • SHA1

    4be2c72045f66ba540ea7d9e7bd37ce42142cf6f

  • SHA256

    d2cfb6c7709ee2c45a5bb99e894a3b1af7af7b83ec1fbddfb322120ccda36b5e

  • SHA512

    a86e043559cdd1497a04641af3c9e0ca743c66e6ae9b8f8d03a853971c782900231792749f05ef38b9092dc0c589df84e7820924777aff8dacf152bc45c3c437

  • SSDEEP

    12288:vkdJZqQK87eyIAhUELXaEDUwmZSN+2kNv8oe2nMYUrgPAQfM4eo8:vFwTm18oe2PyPJx

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • 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.

  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\93f023a1c1b505d8b4667ea3d7d58518_JaffaCakes118.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4552
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\93f023a1c1b505d8b4667ea3d7d58518_JaffaCakes118.dll
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3164
      • C:\Windows\SysWOW64\regsvr32mgr.exe
        C:\Windows\SysWOW64\regsvr32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:788
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 484
          4⤵
          • Program crash
          PID:3572
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 788 -ip 788
    1⤵
      PID:4568

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\~TM76E5.tmp

      Filesize

      1.6MB

      MD5

      4f3387277ccbd6d1f21ac5c07fe4ca68

      SHA1

      e16506f662dc92023bf82def1d621497c8ab5890

      SHA256

      767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

      SHA512

      9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

    • C:\Windows\SysWOW64\regsvr32mgr.exe

      Filesize

      106KB

      MD5

      fe36fb1073e6f8fa14d7250501a29aaf

      SHA1

      6c7e01278362797dabcff3e666b68227cb9af10f

      SHA256

      f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

      SHA512

      8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

    • memory/788-5-0x0000000000400000-0x000000000042A000-memory.dmp

      Filesize

      168KB

    • memory/788-6-0x0000000000400000-0x000000000042A000-memory.dmp

      Filesize

      168KB

    • memory/3164-0-0x0000000074BE0000-0x0000000074C8C000-memory.dmp

      Filesize

      688KB