Analysis

  • max time kernel
    149s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 11:38

General

  • Target
    4738b9088e6ba68927d933b6aad7425457410542573563400e66ab4f9359e817.exe
  • Size 225KB
  • Sample240603-nrt8nsed57
  • SHA256 4738b9088e6ba68927d933b6aad7425457410542573563400e66ab4f9359e817
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3380
      • C:\Users\Admin\AppData\Local\Temp\4738b9088e6ba68927d933b6aad7425457410542573563400e66ab4f9359e817.exe
        "C:\Users\Admin\AppData\Local\Temp\4738b9088e6ba68927d933b6aad7425457410542573563400e66ab4f9359e817.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1792
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a3CEA.bat
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1168
          • C:\Users\Admin\AppData\Local\Temp\4738b9088e6ba68927d933b6aad7425457410542573563400e66ab4f9359e817.exe
            "C:\Users\Admin\AppData\Local\Temp\4738b9088e6ba68927d933b6aad7425457410542573563400e66ab4f9359e817.exe"
            4⤵
            • Executes dropped EXE
            PID:2996
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4868
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4076
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:4716

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            GoogleUpdateCore.exe

            • Path C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe
            • Size 252KB
            • SHA256 3ba0a07458d09c252ebe8d3ce4ee35c56605cda7e8a99cc07ea90caa334bf239
            • MD5 SHA1 SHA512 SSDEEP

            7z.exe

            • Path C:\Program Files\7-Zip\7z.exe
            • Size 571KB
            • SHA256 81e9aca35afcb1236486714ddb1c830e4a65af10eb00f735c01d41b1d65e1331
            • MD5 SHA1 SHA512 SSDEEP

            windowsdesktop-runtime-8.0.2-win-x64.exe

            • Path C:\ProgramData\Package Cache\{63880b41-04fc-4f9b-92c4-4455c255eb8c}\windowsdesktop-runtime-8.0.2-win-x64.exe
            • Size 637KB
            • SHA256 a22e6d0f5c7d44fefc2204e0f7c7b048e1684f6cf249ba98c006bbf791c22d19
            • MD5 SHA1 SHA512 SSDEEP

            $$a3CEA.bat

            • Path C:\Users\Admin\AppData\Local\Temp\$$a3CEA.bat
            • Size 722B
            • SHA256 276558d51f8ad0173c74102f37f07c59d92efa0e7acda40a4cf549ba4ef47792
            • MD5 SHA1 SHA512

            4738b9088e6ba68927d933b6aad7425457410542573563400e66ab4f9359e817.exe.exe

            • Path C:\Users\Admin\AppData\Local\Temp\4738b9088e6ba68927d933b6aad7425457410542573563400e66ab4f9359e817.exe.exe
            • Size 198KB
            • SHA256 6c5e7d9c81a409e67c143cd3aed33bddc3967fa4c9ab3b98560b7d3bf57d093d
            • MD5 SHA1 SHA512 SSDEEP

            Logo1_.exe

            • Path C:\Windows\Logo1_.exe
            • Size 27KB
            • SHA256 02f4bf41aa6efbc2a49158fe1da4dbfadc09b0ff26e0c9553b593d527e771ed6
            • MD5 SHA1 SHA512 SSDEEP

            _desktop.ini

            • Path F:\$RECYCLE.BIN\S-1-5-21-1162180587-977231257-2194346871-1000\_desktop.ini
            • Size 8B
            • SHA256 d9d875805581110dafdfb2ceb34c5e60f50fe720963f9813c287e4845248d208
            • MD5 SHA1 SHA512

            memory/1792-10-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/1792-0-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/4868-27-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/4868-37-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/4868-33-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/4868-1232-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/4868-20-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/4868-4797-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/4868-13-0x0000000000400000-0x0000000000435000-memory.dmp

            memory/4868-5236-0x0000000000400000-0x0000000000435000-memory.dmp