Analysis

  • max time kernel
    92s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2022 02:57

General

  • Target

    13fe269ceed9d9c4f5745a1dd7b7682d79efe5f05faeb00c4409a591b405fb1f.exe

  • Size

    246KB

  • MD5

    791b8f6c49b235238e4109db3cead404

  • SHA1

    5a5d12b4017a2bff39d73103d4c48ce1dd247fdf

  • SHA256

    13fe269ceed9d9c4f5745a1dd7b7682d79efe5f05faeb00c4409a591b405fb1f

  • SHA512

    0108c22b337ed0f19f3feb99195cd79d20cfa64af973166a1f9fd59758dbfb67629383845b15e3d42a9412e19c7e828e62f2814a5d9d3ad5b5d7bc7bc1d58151

  • SSDEEP

    6144:JRneWALBZ/23BggscIPf2HP9rnw0qO4/SkeeabLCYBVtlXY:JRefVp23Bggsci2HlnU/SCALCGVtlY

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 8 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 7 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:2376
      • C:\Users\Admin\AppData\Local\Temp\13fe269ceed9d9c4f5745a1dd7b7682d79efe5f05faeb00c4409a591b405fb1f.exe
        "C:\Users\Admin\AppData\Local\Temp\13fe269ceed9d9c4f5745a1dd7b7682d79efe5f05faeb00c4409a591b405fb1f.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:5056
        • C:\Users\Admin\AppData\Local\Temp\13fe269ceed9d9c4f5745a1dd7b7682d79efe5f05faeb00c4409a591b405fb1f.exe
          "C:\Users\Admin\AppData\Local\Temp\13fe269ceed9d9c4f5745a1dd7b7682d79efe5f05faeb00c4409a591b405fb1f.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:396
          • C:\Windows\SysWOW64\igfxkb86.exe
            "C:\Windows\SysWOW64\igfxkb86.exe" C:\Users\Admin\AppData\Local\Temp\13FE26~1.EXE
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4408
            • C:\Windows\SysWOW64\igfxkb86.exe
              "C:\Windows\SysWOW64\igfxkb86.exe" C:\Users\Admin\AppData\Local\Temp\13FE26~1.EXE
              5⤵
              • Modifies firewall policy service
              • 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:1968

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\igfxkb86.exe

      Filesize

      246KB

      MD5

      791b8f6c49b235238e4109db3cead404

      SHA1

      5a5d12b4017a2bff39d73103d4c48ce1dd247fdf

      SHA256

      13fe269ceed9d9c4f5745a1dd7b7682d79efe5f05faeb00c4409a591b405fb1f

      SHA512

      0108c22b337ed0f19f3feb99195cd79d20cfa64af973166a1f9fd59758dbfb67629383845b15e3d42a9412e19c7e828e62f2814a5d9d3ad5b5d7bc7bc1d58151

    • C:\Windows\SysWOW64\igfxkb86.exe

      Filesize

      246KB

      MD5

      791b8f6c49b235238e4109db3cead404

      SHA1

      5a5d12b4017a2bff39d73103d4c48ce1dd247fdf

      SHA256

      13fe269ceed9d9c4f5745a1dd7b7682d79efe5f05faeb00c4409a591b405fb1f

      SHA512

      0108c22b337ed0f19f3feb99195cd79d20cfa64af973166a1f9fd59758dbfb67629383845b15e3d42a9412e19c7e828e62f2814a5d9d3ad5b5d7bc7bc1d58151

    • C:\Windows\SysWOW64\igfxkb86.exe

      Filesize

      246KB

      MD5

      791b8f6c49b235238e4109db3cead404

      SHA1

      5a5d12b4017a2bff39d73103d4c48ce1dd247fdf

      SHA256

      13fe269ceed9d9c4f5745a1dd7b7682d79efe5f05faeb00c4409a591b405fb1f

      SHA512

      0108c22b337ed0f19f3feb99195cd79d20cfa64af973166a1f9fd59758dbfb67629383845b15e3d42a9412e19c7e828e62f2814a5d9d3ad5b5d7bc7bc1d58151

    • memory/396-136-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/396-137-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/396-135-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/396-133-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/396-132-0x0000000000000000-mapping.dmp

    • memory/396-147-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1968-141-0x0000000000000000-mapping.dmp

    • memory/1968-148-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/1968-149-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/4408-138-0x0000000000000000-mapping.dmp