Analysis

  • max time kernel
    149s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-10-2024 17:52

General

  • Target

    145b2d57492686e1c4b6e4c748b762a1_JaffaCakes118.exe

  • Size

    608KB

  • MD5

    145b2d57492686e1c4b6e4c748b762a1

  • SHA1

    478ce27333abef93d976bc9003dc31357b1041cb

  • SHA256

    8cda444ded1ae7ceee618c59b9535a732295091621828c1f7f07ca044eeea239

  • SHA512

    ec02a818280356afb09fe8e9464fb644a9b0bd1a9e37ee2abf14a5002317564f24bb603ecffbfe03ac066aca0b083d77f67ff6cd03cdb4899bc1f8dc2806baa7

  • SSDEEP

    12288:GBYDZJr1E+3JcdrXxE3Vq4Vcim38bJ6vKDn5gcPUbjC:GqF6+ydroLrJ6vKVgkUb

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 9 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 52 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • UPX packed file 13 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\145b2d57492686e1c4b6e4c748b762a1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\145b2d57492686e1c4b6e4c748b762a1_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1284
    • C:\Users\Admin\aUY5E15SY8.exe
      C:\Users\Admin\aUY5E15SY8.exe
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Users\Admin\vuueruc.exe
        "C:\Users\Admin\vuueruc.exe"
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5092
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c tasklist&&del aUY5E15SY8.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3504
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          4⤵
          • Enumerates processes with tasklist
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:1928
    • C:\Users\Admin\2nua.exe
      C:\Users\Admin\2nua.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4284
      • C:\Users\Admin\2nua.exe
        "C:\Users\Admin\2nua.exe"
        3⤵
        • Executes dropped EXE
        PID:4512
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 80
          4⤵
          • Program crash
          PID:3200
      • C:\Users\Admin\2nua.exe
        "C:\Users\Admin\2nua.exe"
        3⤵
        • Executes dropped EXE
        • Maps connected drives based on registry
        • Suspicious behavior: EnumeratesProcesses
        PID:4532
      • C:\Users\Admin\2nua.exe
        "C:\Users\Admin\2nua.exe"
        3⤵
        • Executes dropped EXE
        • Maps connected drives based on registry
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:3144
      • C:\Users\Admin\2nua.exe
        "C:\Users\Admin\2nua.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3672
      • C:\Users\Admin\2nua.exe
        "C:\Users\Admin\2nua.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5004
    • C:\Users\Admin\3nua.exe
      C:\Users\Admin\3nua.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3544
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3544 -s 612
        3⤵
        • Program crash
        PID:3160
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c tasklist&&del 145b2d57492686e1c4b6e4c748b762a1_JaffaCakes118.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1112
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4288
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4512 -ip 4512
    1⤵
      PID:1996
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3544 -ip 3544
      1⤵
        PID:2212

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\2nua.exe

        Filesize

        224KB

        MD5

        b64185be04a7c3882871c07358450544

        SHA1

        6dd00c5f29490e210639ac155e732f7c33e746af

        SHA256

        c7968bba96e5bc1c47dd24c4b61763eb9d227e89bb259add8ac010711a875f0d

        SHA512

        604aa723229eddd5225c13d64993966d9a79f0e34aa6b31bb8cfc00e1765319886eaefff276222831e6c5a82cf50634f04a9d59c141329b07a632fc586e4ed21

      • C:\Users\Admin\3nua.exe

        Filesize

        273KB

        MD5

        0fcecac14065f03c4f83bf5ae6ac415b

        SHA1

        f71aa4708e16a2a3bf15e2a99cc0ce609b08769b

        SHA256

        79f4527215b4a213f69cf618440202131afa6eb61d2bc6046b718dd4b4ddb787

        SHA512

        49195c9f00c434228dd76151042dc03f7f87b77438734861face0f4ec40391649ed784aaf82b756113a55d55126c9b18c27e44d0c47ca75564ea079eed161003

      • C:\Users\Admin\aUY5E15SY8.exe

        Filesize

        208KB

        MD5

        380575fdf47f22e24cc214c89f098f9d

        SHA1

        5d5584fab3dc5267ffacfd4c331555f4f7703fb6

        SHA256

        04fc572ba5e2e941d3510ed1504cc04490c7f5ff3ec651e6c8ffd6645ef2e0c9

        SHA512

        70ce73ac9a14224c608e1ab60e21dd8bbd5ebcc8c75bb670c0861c8fc4a478965d39a450d32907ff90baa3a8a2fc9e50a9cc8d7385a330b373d3c9854cc8e7e2

      • C:\Users\Admin\vuueruc.exe

        Filesize

        208KB

        MD5

        be664f45c5087455130f61f02b288f38

        SHA1

        d86b51076ae6c48e6e60822a72d5afec86de0c66

        SHA256

        baec319734284e869ecfdef85f668474e59908bca80bf27c0c83ee63d0013522

        SHA512

        d51a8d59685850f31724e8e6faaa384161e14caeeb16f6c737d040df25f90ec61d1396f69333251ceb02ff95121b2cc6c6ce1919058ece747aed01ec5252f196

      • memory/3144-54-0x0000000000400000-0x0000000000459000-memory.dmp

        Filesize

        356KB

      • memory/3144-82-0x0000000000400000-0x0000000000459000-memory.dmp

        Filesize

        356KB

      • memory/3144-59-0x0000000000400000-0x0000000000459000-memory.dmp

        Filesize

        356KB

      • memory/3544-78-0x0000000000400000-0x000000000046A000-memory.dmp

        Filesize

        424KB

      • memory/3672-62-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/3672-61-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/3672-57-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/3672-80-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/4532-52-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/4532-56-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/4532-53-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/4532-79-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/4532-48-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/5004-65-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/5004-73-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/5004-66-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/5004-60-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB