Analysis

  • max time kernel
    128s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2022 06:35

General

  • Target

    b7d3046bf47466ae1240e4ff4e02d0c95cc0a48ae330ce0bf335a296ae06ca49.exe

  • Size

    266KB

  • MD5

    78e3ab7007a3dae96afccd388c869933

  • SHA1

    cb5c9c74004506500a6c4e5cb431e246bb8c0352

  • SHA256

    b7d3046bf47466ae1240e4ff4e02d0c95cc0a48ae330ce0bf335a296ae06ca49

  • SHA512

    c07fa9c94e0f59b795b821760ee2b72490af2b62bc4913c99c1ba17655be389ee91fa347de2ee3d8309911681ec0cab037fdc5417516b693cca45556a8b7c659

  • SSDEEP

    6144:LWQXbSjopWSmLvQzfhtFrvb8xu0moP/SHD9LufoJ:aAmspWSmLvChtFrvDDjRn

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 2 TTPs 4 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 12 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 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). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1424
      • C:\Users\Admin\AppData\Local\Temp\b7d3046bf47466ae1240e4ff4e02d0c95cc0a48ae330ce0bf335a296ae06ca49.exe
        "C:\Users\Admin\AppData\Local\Temp\b7d3046bf47466ae1240e4ff4e02d0c95cc0a48ae330ce0bf335a296ae06ca49.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1492
        • C:\Users\Admin\AppData\Local\Temp\b7d3046bf47466ae1240e4ff4e02d0c95cc0a48ae330ce0bf335a296ae06ca49.exe
          "C:\Users\Admin\AppData\Local\Temp\b7d3046bf47466ae1240e4ff4e02d0c95cc0a48ae330ce0bf335a296ae06ca49.exe"
          3⤵
          • Loads dropped DLL
          • Maps connected drives based on registry
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1124
          • C:\Windows\SysWOW64\igfxsvc86.exe
            "C:\Windows\SysWOW64\igfxsvc86.exe" C:\Users\Admin\AppData\Local\Temp\B7D304~1.EXE
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1936
            • C:\Windows\SysWOW64\igfxsvc86.exe
              "C:\Windows\SysWOW64\igfxsvc86.exe" C:\Users\Admin\AppData\Local\Temp\B7D304~1.EXE
              5⤵
              • Modifies firewall policy service
              • Executes dropped EXE
              • Deletes itself
              • 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:1488

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\igfxsvc86.exe

      Filesize

      266KB

      MD5

      78e3ab7007a3dae96afccd388c869933

      SHA1

      cb5c9c74004506500a6c4e5cb431e246bb8c0352

      SHA256

      b7d3046bf47466ae1240e4ff4e02d0c95cc0a48ae330ce0bf335a296ae06ca49

      SHA512

      c07fa9c94e0f59b795b821760ee2b72490af2b62bc4913c99c1ba17655be389ee91fa347de2ee3d8309911681ec0cab037fdc5417516b693cca45556a8b7c659

    • C:\Windows\SysWOW64\igfxsvc86.exe

      Filesize

      266KB

      MD5

      78e3ab7007a3dae96afccd388c869933

      SHA1

      cb5c9c74004506500a6c4e5cb431e246bb8c0352

      SHA256

      b7d3046bf47466ae1240e4ff4e02d0c95cc0a48ae330ce0bf335a296ae06ca49

      SHA512

      c07fa9c94e0f59b795b821760ee2b72490af2b62bc4913c99c1ba17655be389ee91fa347de2ee3d8309911681ec0cab037fdc5417516b693cca45556a8b7c659

    • \Windows\SysWOW64\igfxsvc86.exe

      Filesize

      266KB

      MD5

      78e3ab7007a3dae96afccd388c869933

      SHA1

      cb5c9c74004506500a6c4e5cb431e246bb8c0352

      SHA256

      b7d3046bf47466ae1240e4ff4e02d0c95cc0a48ae330ce0bf335a296ae06ca49

      SHA512

      c07fa9c94e0f59b795b821760ee2b72490af2b62bc4913c99c1ba17655be389ee91fa347de2ee3d8309911681ec0cab037fdc5417516b693cca45556a8b7c659

    • memory/1124-61-0x000000000044EEB0-mapping.dmp

    • memory/1124-84-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1124-54-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1124-63-0x0000000076BA1000-0x0000000076BA3000-memory.dmp

      Filesize

      8KB

    • memory/1124-64-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1124-65-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1124-66-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1124-67-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1124-58-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1124-60-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1124-57-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1124-55-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1424-88-0x00000000025B0000-0x00000000025CE000-memory.dmp

      Filesize

      120KB

    • memory/1488-78-0x000000000044EEB0-mapping.dmp

    • memory/1488-85-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1488-86-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1488-87-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1936-69-0x0000000000000000-mapping.dmp