Analysis

  • max time kernel
    29s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2022 00:56

General

  • Target

    6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe

  • Size

    253KB

  • MD5

    d72d29e17d55a0f5327ba3b310111f4c

  • SHA1

    b35f60396d2d01c0a1148601143acc1c916668b9

  • SHA256

    6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524

  • SHA512

    49119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3

  • SSDEEP

    6144:7qXm9VZHAHjWm7LABGIwHeM8ce8dqTv7uNAab6xHUN:W2vZHADWVBGISercr0vCAauxHE

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.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 7 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
    "C:\Users\Admin\AppData\Local\Temp\6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Users\Admin\AppData\Local\Temp\6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
      "C:\Users\Admin\AppData\Local\Temp\6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe"
      2⤵
      • Loads dropped DLL
      • Maps connected drives based on registry
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:916
      • C:\Windows\SysWOW64\wmpbd32.exe
        "C:\Windows\SysWOW64\wmpbd32.exe" C:\Users\Admin\AppData\Local\Temp\6A1435~1.EXE
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1324
        • C:\Windows\SysWOW64\wmpbd32.exe
          "C:\Windows\SysWOW64\wmpbd32.exe" C:\Users\Admin\AppData\Local\Temp\6A1435~1.EXE
          4⤵
            PID:1272

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\wmpbd32.exe

      Filesize

      253KB

      MD5

      d72d29e17d55a0f5327ba3b310111f4c

      SHA1

      b35f60396d2d01c0a1148601143acc1c916668b9

      SHA256

      6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524

      SHA512

      49119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3

    • C:\Windows\SysWOW64\wmpbd32.exe

      Filesize

      253KB

      MD5

      d72d29e17d55a0f5327ba3b310111f4c

      SHA1

      b35f60396d2d01c0a1148601143acc1c916668b9

      SHA256

      6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524

      SHA512

      49119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3

    • \Windows\SysWOW64\wmpbd32.exe

      Filesize

      253KB

      MD5

      d72d29e17d55a0f5327ba3b310111f4c

      SHA1

      b35f60396d2d01c0a1148601143acc1c916668b9

      SHA256

      6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524

      SHA512

      49119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3

    • \Windows\SysWOW64\wmpbd32.exe

      Filesize

      253KB

      MD5

      d72d29e17d55a0f5327ba3b310111f4c

      SHA1

      b35f60396d2d01c0a1148601143acc1c916668b9

      SHA256

      6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524

      SHA512

      49119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3

    • memory/916-64-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/916-61-0x0000000076091000-0x0000000076093000-memory.dmp

      Filesize

      8KB

    • memory/916-62-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/916-63-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/916-54-0x0000000000000000-mapping.dmp

    • memory/916-65-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/916-59-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/916-58-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/916-56-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/916-55-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1272-71-0x0000000000000000-mapping.dmp

    • memory/1324-68-0x0000000000000000-mapping.dmp