Analysis

  • max time kernel
    149s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    20-07-2022 15:21

General

  • Target

    4f2293769c3a937ea8de01192ebcbf584b735c2c10a29de0365e230b18a50e43.exe

  • Size

    258KB

  • MD5

    8afa13eeb4e97c8b18fe821e62828981

  • SHA1

    de3592cf728ec391da16654a83f142c44f10d83a

  • SHA256

    4f2293769c3a937ea8de01192ebcbf584b735c2c10a29de0365e230b18a50e43

  • SHA512

    83cd10c28e4c318f691559494897e54ad234925989bb97ba1f0dd9c6bef00bf91113032277f4557378d4debffc455da1a62a00b18a3298b25bb49829228512de

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 14 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 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 5 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 8 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1208
      • C:\Users\Admin\AppData\Local\Temp\4f2293769c3a937ea8de01192ebcbf584b735c2c10a29de0365e230b18a50e43.exe
        "C:\Users\Admin\AppData\Local\Temp\4f2293769c3a937ea8de01192ebcbf584b735c2c10a29de0365e230b18a50e43.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1028
        • C:\Users\Admin\AppData\Local\Temp\4f2293769c3a937ea8de01192ebcbf584b735c2c10a29de0365e230b18a50e43.exe
          "C:\Users\Admin\AppData\Local\Temp\4f2293769c3a937ea8de01192ebcbf584b735c2c10a29de0365e230b18a50e43.exe"
          3⤵
          • Loads dropped DLL
          • Maps connected drives based on registry
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1652
          • C:\Windows\SysWOW64\wmpdx32.exe
            "C:\Windows\SysWOW64\wmpdx32.exe" C:\Users\Admin\AppData\Local\Temp\4F2293~1.EXE
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1492
            • C:\Windows\SysWOW64\wmpdx32.exe
              "C:\Windows\SysWOW64\wmpdx32.exe" C:\Users\Admin\AppData\Local\Temp\4F2293~1.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:1156

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\wmpdx32.exe

      Filesize

      258KB

      MD5

      8afa13eeb4e97c8b18fe821e62828981

      SHA1

      de3592cf728ec391da16654a83f142c44f10d83a

      SHA256

      4f2293769c3a937ea8de01192ebcbf584b735c2c10a29de0365e230b18a50e43

      SHA512

      83cd10c28e4c318f691559494897e54ad234925989bb97ba1f0dd9c6bef00bf91113032277f4557378d4debffc455da1a62a00b18a3298b25bb49829228512de

    • C:\Windows\SysWOW64\wmpdx32.exe

      Filesize

      258KB

      MD5

      8afa13eeb4e97c8b18fe821e62828981

      SHA1

      de3592cf728ec391da16654a83f142c44f10d83a

      SHA256

      4f2293769c3a937ea8de01192ebcbf584b735c2c10a29de0365e230b18a50e43

      SHA512

      83cd10c28e4c318f691559494897e54ad234925989bb97ba1f0dd9c6bef00bf91113032277f4557378d4debffc455da1a62a00b18a3298b25bb49829228512de

    • C:\Windows\SysWOW64\wmpdx32.exe

      Filesize

      258KB

      MD5

      8afa13eeb4e97c8b18fe821e62828981

      SHA1

      de3592cf728ec391da16654a83f142c44f10d83a

      SHA256

      4f2293769c3a937ea8de01192ebcbf584b735c2c10a29de0365e230b18a50e43

      SHA512

      83cd10c28e4c318f691559494897e54ad234925989bb97ba1f0dd9c6bef00bf91113032277f4557378d4debffc455da1a62a00b18a3298b25bb49829228512de

    • \Windows\SysWOW64\wmpdx32.exe

      Filesize

      258KB

      MD5

      8afa13eeb4e97c8b18fe821e62828981

      SHA1

      de3592cf728ec391da16654a83f142c44f10d83a

      SHA256

      4f2293769c3a937ea8de01192ebcbf584b735c2c10a29de0365e230b18a50e43

      SHA512

      83cd10c28e4c318f691559494897e54ad234925989bb97ba1f0dd9c6bef00bf91113032277f4557378d4debffc455da1a62a00b18a3298b25bb49829228512de

    • \Windows\SysWOW64\wmpdx32.exe

      Filesize

      258KB

      MD5

      8afa13eeb4e97c8b18fe821e62828981

      SHA1

      de3592cf728ec391da16654a83f142c44f10d83a

      SHA256

      4f2293769c3a937ea8de01192ebcbf584b735c2c10a29de0365e230b18a50e43

      SHA512

      83cd10c28e4c318f691559494897e54ad234925989bb97ba1f0dd9c6bef00bf91113032277f4557378d4debffc455da1a62a00b18a3298b25bb49829228512de

    • memory/1156-82-0x000000000044F410-mapping.dmp

    • memory/1156-89-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1156-88-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1156-87-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1156-86-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1208-90-0x00000000021B0000-0x00000000021CE000-memory.dmp

      Filesize

      120KB

    • memory/1492-71-0x0000000000000000-mapping.dmp

    • memory/1652-67-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1652-61-0x000000000044F410-mapping.dmp

    • memory/1652-60-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1652-58-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1652-73-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1652-57-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1652-54-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1652-55-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1652-68-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1652-63-0x0000000076C01000-0x0000000076C03000-memory.dmp

      Filesize

      8KB

    • memory/1652-66-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1652-65-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB

    • memory/1652-64-0x0000000000400000-0x0000000000467000-memory.dmp

      Filesize

      412KB