Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/01/2024, 09:19

General

  • Target

    6ceef262ae79d08819ff56e76ea48dca.exe

  • Size

    139KB

  • MD5

    6ceef262ae79d08819ff56e76ea48dca

  • SHA1

    26e363aa952bab7a55b70640964c43acc9983303

  • SHA256

    386607167eaf8859eb668cfb05f11fb43cd2f6510b29cac1e1a301986580ea71

  • SHA512

    a5f74fd5a27c41a03173b198ed66d465d982add9da32b0782038716ca1f8406e9acd1c09e2728cf1955323ad2653a90af33dc083d5668c3d3d40f27858530d7c

  • SSDEEP

    3072:I22Oan9S2UkvtlcTPbsrHdc6RNkFs/2MiHBrU2GNEKbTsSNlBG0HEMcj:QtcPIULgTRNkFO2MSrU2uE+JNlj9cj

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
  • 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 WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6ceef262ae79d08819ff56e76ea48dca.exe
    "C:\Users\Admin\AppData\Local\Temp\6ceef262ae79d08819ff56e76ea48dca.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3552
    • C:\Users\Admin\AppData\Local\Temp\6ceef262ae79d08819ff56e76ea48dca.exe
      "C:\Users\Admin\AppData\Local\Temp\6ceef262ae79d08819ff56e76ea48dca.exe"
      2⤵
      • 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:1068
      • C:\Windows\SysWOW64\igfxdt86.exe
        "C:\Windows\SysWOW64\igfxdt86.exe" C:\Users\Admin\AppData\Local\Temp\6CEEF2~1.EXE
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2552
        • C:\Windows\SysWOW64\igfxdt86.exe
          "C:\Windows\SysWOW64\igfxdt86.exe" C:\Users\Admin\AppData\Local\Temp\6CEEF2~1.EXE
          4⤵
          • 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:5096
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3344

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\igfxdt86.exe

            Filesize

            139KB

            MD5

            6ceef262ae79d08819ff56e76ea48dca

            SHA1

            26e363aa952bab7a55b70640964c43acc9983303

            SHA256

            386607167eaf8859eb668cfb05f11fb43cd2f6510b29cac1e1a301986580ea71

            SHA512

            a5f74fd5a27c41a03173b198ed66d465d982add9da32b0782038716ca1f8406e9acd1c09e2728cf1955323ad2653a90af33dc083d5668c3d3d40f27858530d7c

          • memory/1068-0-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/1068-2-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/1068-3-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/1068-4-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/1068-44-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/1068-45-0x0000000000400000-0x0000000000429000-memory.dmp

            Filesize

            164KB

          • memory/5096-43-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/5096-46-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/5096-47-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB