Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-07-2024 05:56

General

  • Target

    27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe

  • Size

    146KB

  • MD5

    27778b028fcd6a87de7f7d040c82097c

  • SHA1

    c32e909132b8d386b78aa537f775046d04268509

  • SHA256

    1c4d1b7d6eba4fc317664cfa42e77598a59bb0d98e6397e91d502556f4eae9cf

  • SHA512

    2ff50fed8ca8a32aad175c426b1d57ac1b6728515c9cd9c616e277ef0ee403f0190b3432f8ed6ac13846a38c4a8a652cf552b92e5f14757c8de9f2509884514b

  • SSDEEP

    3072:yJT1qWN9Ni7DG8/3hcRo080cABosZrxCQSLnXKS08xAFTvbyR:w1qWI7DJ/8cKosDXSxAAR

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Modifies firewall policy service 3 TTPs 8 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 9 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3420
      • C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:916
        • C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe"
          3⤵
          • Checks computer location settings
          • Maps connected drives based on registry
          • Drops file in System32 directory
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1864
          • C:\Windows\SysWOW64\wmpbk86.exe
            "C:\Windows\SysWOW64\wmpbk86.exe" C:\Users\Admin\AppData\Local\Temp\27778B~1.EXE
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1952
            • C:\Windows\SysWOW64\wmpbk86.exe
              "C:\Windows\SysWOW64\wmpbk86.exe" C:\Users\Admin\AppData\Local\Temp\27778B~1.EXE
              5⤵
              • Modifies firewall policy service
              • Deletes itself
              • Executes dropped EXE
              • Adds Run key to start application
              • Maps connected drives based on registry
              • Drops file in System32 directory
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:1568

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\wmpbk86.exe

      Filesize

      146KB

      MD5

      27778b028fcd6a87de7f7d040c82097c

      SHA1

      c32e909132b8d386b78aa537f775046d04268509

      SHA256

      1c4d1b7d6eba4fc317664cfa42e77598a59bb0d98e6397e91d502556f4eae9cf

      SHA512

      2ff50fed8ca8a32aad175c426b1d57ac1b6728515c9cd9c616e277ef0ee403f0190b3432f8ed6ac13846a38c4a8a652cf552b92e5f14757c8de9f2509884514b

    • memory/1568-43-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1568-46-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1568-47-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1864-0-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1864-2-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1864-3-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1864-4-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1864-44-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1864-45-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB