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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/01/2025, 21:30

General

  • Target

    JaffaCakes118_07a3182e5b7a23fc280812f3626fc813.dll

  • Size

    754KB

  • MD5

    07a3182e5b7a23fc280812f3626fc813

  • SHA1

    94131dd8f73672cb92bcc384bbd897f131fa3a96

  • SHA256

    3fa4b48aa56ba0eb7476b445a2c333f13ae0080f39d4803f4c34a95ca131e320

  • SHA512

    27dca3d3418a0ae92432c03c62873460b0e32a762bd1e5f195411d51c7200649e58797a465f1719ac9e65d061bbf04feff4fd1126fdf4d6deada78344a83225a

  • SSDEEP

    12288:4NIyZN4+Wv4PLq6Okrh9ZN/hs9DsdzvCIKFdq3VPIdrV:49TPmirh9Zdh6MvCbdq3arV

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 2 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\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07a3182e5b7a23fc280812f3626fc813.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3156
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07a3182e5b7a23fc280812f3626fc813.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3004
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3592
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 10188
          4⤵
          • Program crash
          PID:4736
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3004 -s 608
        3⤵
        • Program crash
        PID:1396
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3004 -ip 3004
    1⤵
      PID:3776
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3592 -ip 3592
      1⤵
        PID:1200

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\~TM883B.tmp

        Filesize

        1.6MB

        MD5

        4f3387277ccbd6d1f21ac5c07fe4ca68

        SHA1

        e16506f662dc92023bf82def1d621497c8ab5890

        SHA256

        767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

        SHA512

        9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        169KB

        MD5

        335f0aeb047ac7782090828b5d4fa10e

        SHA1

        73355b1c843bec7be94b0a39efb5ff3b1b4ee547

        SHA256

        6df4c841c30d414cfee93573963036abfd669627081705c6a0d9e65fd6846f53

        SHA512

        635d1e473a0f2cebad020f80e211b55bcb12742ddde1e65db182b077c8873f639b491ab8d11a6781095cf16729e03f93696514de72b58efad8157fad3ff399f1

      • memory/3004-1-0x0000000010000000-0x00000000100C2000-memory.dmp

        Filesize

        776KB

      • memory/3004-10-0x0000000010000000-0x00000000100C2000-memory.dmp

        Filesize

        776KB

      • memory/3592-6-0x00000000021C0000-0x000000000222B000-memory.dmp

        Filesize

        428KB

      • memory/3592-7-0x0000000000400000-0x000000000046B000-memory.dmp

        Filesize

        428KB