Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-06-2024 08:58

General

  • Target

    05cb95c3526f4d71766d3d7594b83fda_JaffaCakes118.exe

  • Size

    164KB

  • MD5

    05cb95c3526f4d71766d3d7594b83fda

  • SHA1

    3954a4bb13f5b7fa0cc2e4561ac213facefb4621

  • SHA256

    9dfe875c0c313a546a915d0af349474e1b72f6fa281a6b873857cd91ca3e82da

  • SHA512

    c75361ea10e80c1ab9955782844439f896d127da9d5f6f847000889d5e363d8aeb32000e0ee4504d578cec206194a092923fae53bbe0a51a3b4539a8df452d6c

  • SSDEEP

    3072:B4PY4jTfARxl5mNxm+EY11JHBsDlW69fm7BZOqByPkkV:B4PY4jTInm/m+r1nBs5Wr7aiVkV

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 8 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 WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3400
      • C:\Users\Admin\AppData\Local\Temp\05cb95c3526f4d71766d3d7594b83fda_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\05cb95c3526f4d71766d3d7594b83fda_JaffaCakes118.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3168
        • C:\Users\Admin\AppData\Local\Temp\05cb95c3526f4d71766d3d7594b83fda_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\05cb95c3526f4d71766d3d7594b83fda_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:2168
          • C:\Windows\SysWOW64\igfxdl86.exe
            "C:\Windows\SysWOW64\igfxdl86.exe" C:\Users\Admin\AppData\Local\Temp\05CB95~1.EXE
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2636
            • C:\Windows\SysWOW64\igfxdl86.exe
              "C:\Windows\SysWOW64\igfxdl86.exe" C:\Users\Admin\AppData\Local\Temp\05CB95~1.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:4420

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\igfxdl86.exe

      Filesize

      164KB

      MD5

      05cb95c3526f4d71766d3d7594b83fda

      SHA1

      3954a4bb13f5b7fa0cc2e4561ac213facefb4621

      SHA256

      9dfe875c0c313a546a915d0af349474e1b72f6fa281a6b873857cd91ca3e82da

      SHA512

      c75361ea10e80c1ab9955782844439f896d127da9d5f6f847000889d5e363d8aeb32000e0ee4504d578cec206194a092923fae53bbe0a51a3b4539a8df452d6c

    • memory/2168-0-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2168-2-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2168-3-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2168-4-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2168-44-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/4420-43-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/4420-46-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/4420-47-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB