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Analysis

  • max time kernel
    150s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/08/2024, 00:59

General

  • Target

    843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe

  • Size

    7.2MB

  • MD5

    843a9ee7d254278e233dda546f6611ae

  • SHA1

    f52e3f62f7cac21992b1911b754c915d80db8d36

  • SHA256

    bc0a24f07f16eb0baa9816f67c5ef20304801e836e16197d611f61f536d48723

  • SHA512

    c2b4b8b93b1629ab4020f14dd439883fb542997420c98c79399353a590b9b2c1fed347990e1e6708822926f9d0ede26f05000d3a0036831007fdd6c29e8b230b

  • SSDEEP

    196608:i7effIPEsy58doQaTxLhQyZbIly38doQalArdfehQMom1yDq3pLmffBaKlbdfyWA:i7effIPEsy58doQaTxLhQyZbIly38dof

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Drops file in Drivers directory 4 IoCs
  • Sets service image path in registry 2 TTPs 3 IoCs
  • ACProtect 1.3x - 1.4x DLL software 5 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 3 IoCs
  • UPX packed file 15 IoCs

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

  • Adds Run key to start application 2 TTPs 12 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 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 SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Modifies WinLogon
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1576
    • C:\Users\Admin\AppData\Local\Temp\843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3484
      • C:\Users\Admin\AppData\Local\Temp\843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe
        C:\Users\Admin\AppData\Local\Temp\843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe
        3⤵
        • Drops file in Drivers directory
        • Sets service image path in registry
        • Loads dropped DLL
        • Adds Run key to start application
        • Enumerates connected drives
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1676
      • C:\Users\Admin\AppData\Local\Temp\843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe
        C:\Users\Admin\AppData\Local\Temp\843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe
        3⤵
        • Enumerates connected drives
        PID:4276
    • C:\Windows\SysWOW64\reg.exe
      reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
      2⤵
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      PID:5056
    • C:\Users\Admin\AppData\Local\Temp\843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3512
      • C:\Users\Admin\AppData\Local\Temp\843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe
        C:\Users\Admin\AppData\Local\Temp\843a9ee7d254278e233dda546f6611ae_JaffaCakes118.exe
        3⤵
        • Drops file in Drivers directory
        • Sets service image path in registry
        • Loads dropped DLL
        • Adds Run key to start application
        • Enumerates connected drives
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3664
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1576 -s 1608
      2⤵
      • Program crash
      PID:4820
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1576 -ip 1576
    1⤵
      PID:2184

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

      Filesize

      1KB

      MD5

      7fb5fa1534dcf77f2125b2403b30a0ee

      SHA1

      365d96812a69ac0a4611ea4b70a3f306576cc3ea

      SHA256

      33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

      SHA512

      a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

      Filesize

      174B

      MD5

      dd598002949d1c6f7dbfcc9db684b48b

      SHA1

      9666924d4a1cb3ef8aa07d01c7ec8fc004bfe2e3

      SHA256

      ec25c4c91459b60207c9e697c31457b5d81710b32e916ed64fd0c0f398c706c5

      SHA512

      ed0ec94dde66aaa7f03fc9446599cd79f0f6bfb9598e4cc1b102e5c93c94aee0a98d57cd2f5870664994e683eb6efb582928f9d3845a22692db08c391b55f3ea

    • C:\Users\Admin\AppData\Local\cftmon.exe

      Filesize

      7.3MB

      MD5

      37ea366aaf0316a102b7f4f8a5a8df4e

      SHA1

      e8e57d6bfc8bb2cc5022a8a590a27cb1ee00bf84

      SHA256

      c72c9ab0216943d8847a0c02e572f12c37d77d7a8d49e8f354765cd6632c2c5f

      SHA512

      122f3b0040031c346f1018e023389d616313298482f44acac6e551c60ef0845612910abd4f706837efef1868f95c63fb4d651daeb4db9dc82a2f121288fab8bc

    • C:\Windows\SysWOW64\drivers\spools.exe

      Filesize

      7.3MB

      MD5

      8a241a903af82fc2522fc8482f2c8c2c

      SHA1

      f129c4cd42ae4a4e2082dddac74a86995d6221d0

      SHA256

      e9c719e1218532af54f27257904a4280dfe582fb9259f38541980af0f1b39fac

      SHA512

      894b113ec866ce15578a1da99e70309f483dd1a6ad415b85e80143509a2035480fd998e04592e706040f56f4e2aae280030d5d710c2fbc2df515ae49d7341d8e

    • C:\Windows\SysWOW64\ftpdll.dll

      Filesize

      5KB

      MD5

      d807aa04480d1d149f7a4cac22984188

      SHA1

      ffd5be65fd10017e34c11cecd105ebf4aa6c0cd9

      SHA256

      eddf092d901afe128322910c3ff41a3f242d33d6b4cdf91ece327076b324ccbb

      SHA512

      875543583c20ab164f37a4fb2587d234ce0a15d649d22b0d1dae5933f0a7683db170578746ea4458c51fec26e2243c6ec00dc10db8d4289789e50d5800cf863e

    • memory/1576-16-0x0000000010000000-0x000000001010B000-memory.dmp

      Filesize

      1.0MB

    • memory/1576-18-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1576-0-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1676-29-0x0000000010000000-0x000000001010B000-memory.dmp

      Filesize

      1.0MB

    • memory/1676-31-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/1676-30-0x0000000010000000-0x000000001010B000-memory.dmp

      Filesize

      1.0MB

    • memory/3484-1-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/3484-41-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/3512-43-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/3664-42-0x0000000010000000-0x000000001010B000-memory.dmp

      Filesize

      1.0MB

    • memory/3664-45-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/4276-47-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB