Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    08/04/2024, 11:25

General

  • Target

    e75925bd0b5a71eefc710c994d1c5840_JaffaCakes118.exe

  • Size

    51KB

  • MD5

    e75925bd0b5a71eefc710c994d1c5840

  • SHA1

    7d5aeaf365c03d4b593f81b875c48d8f96a35199

  • SHA256

    abb4ff92e64a7e5af45ad8fb321b15151ca7c8bc994227d7080338ad5e002b39

  • SHA512

    f064fd0fc4130b21bf5dc4587d0ea3ccf586203b5e52458ae24261534c3ba8f4df4d289c53e2886efb92d4093af1d5289d24f1f0522168ebb1db0f3734535890

  • SSDEEP

    1536:xPcVo6r7S/rabo+trbmWdzPl29OBee06QFnouy8y6zMnO:i7cWboarbzKOBj0Zdoutv

Score
7/10

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 3 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e75925bd0b5a71eefc710c994d1c5840_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e75925bd0b5a71eefc710c994d1c5840_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2924
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\1130.tmp\open_file.bat" "
      2⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:2760
      • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
        "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\anchetaIncalzire.doc"
        3⤵
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2560
        • C:\Windows\splwow64.exe
          C:\Windows\splwow64.exe 12288
          4⤵
            PID:2968

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\1130.tmp\open_file.bat

            Filesize

            1KB

            MD5

            d9e5cef23580f946e6fe5ee5b94ef9dc

            SHA1

            9257eb4d327e877d27a49753e8d31b5c92fade5f

            SHA256

            36c86e8058fc3cb38b154b13cc58e6f31d951a14ed76ec9b1be3bee576dbeaca

            SHA512

            d824b3cf9ced89379105b5494f2eed8de13aae6c48a66eecc7dd8fe5000ef3ce1b93804f0e187b4c33f5b8a1615623481b7199596911dc54e6e94d735fc52654

          • C:\Users\Admin\AppData\Local\Temp\anchetaIncalzire.doc

            Filesize

            321KB

            MD5

            18f33ed8dc03c8729099e213669cc903

            SHA1

            9b8dfe72e5a6d4e27ec46d6a018bbeedb76c86ab

            SHA256

            ce25177ed0e2cd9f8f4faa450004df2a3120a86d549d0c5fad7eee287abcda6e

            SHA512

            d78a5ba6ccfda70a846e3111871e418daea42fe01746d751bd8dd8c686cfe50782b96ed627d56d3341bbef1145ea62831a468ca8d68c6fec86844157090ea394

          • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

            Filesize

            20KB

            MD5

            0b305a593859fdf90a434f31619ab92a

            SHA1

            adb8e2efd37533832cd1383d73eb89f107204345

            SHA256

            cec3fbe380e2ea53a771ac9bf5f2d59b95c1444c4d24334bc7bd9bf9ef9d4caa

            SHA512

            63c9172fd590fe0e87b24cba238f97dc9e4b0c583ea998ac3fc3025413e81da49aa35f9e5d231a7fd45cab7cd35e7ce85f4e4d19d70ec61d5da6ab5af5ac1bb4

          • memory/2560-42-0x000000002FA41000-0x000000002FA42000-memory.dmp

            Filesize

            4KB

          • memory/2560-44-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/2560-45-0x000000007104D000-0x0000000071058000-memory.dmp

            Filesize

            44KB

          • memory/2560-58-0x000000007104D000-0x0000000071058000-memory.dmp

            Filesize

            44KB

          • memory/2560-76-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/2924-0-0x0000000000400000-0x0000000000465000-memory.dmp

            Filesize

            404KB

          • memory/2924-54-0x0000000000400000-0x0000000000465000-memory.dmp

            Filesize

            404KB

          • memory/2924-57-0x0000000000400000-0x0000000000465000-memory.dmp

            Filesize

            404KB