Analysis

  • max time kernel
    149s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 19:43

General

  • Target
    4f02cce0799fab381587075747694cdc4109c8d4569c282a09e8b0fe6e379149.exe
  • Size 88KB
  • Sample240613-yfa1rssgmj
  • SHA256 4f02cce0799fab381587075747694cdc4109c8d4569c282a09e8b0fe6e379149
  • 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 16 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3492
      • C:\Users\Admin\AppData\Local\Temp\4f02cce0799fab381587075747694cdc4109c8d4569c282a09e8b0fe6e379149.exe
        "C:\Users\Admin\AppData\Local\Temp\4f02cce0799fab381587075747694cdc4109c8d4569c282a09e8b0fe6e379149.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1980
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a5F75.bat
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1424
          • C:\Users\Admin\AppData\Local\Temp\4f02cce0799fab381587075747694cdc4109c8d4569c282a09e8b0fe6e379149.exe
            "C:\Users\Admin\AppData\Local\Temp\4f02cce0799fab381587075747694cdc4109c8d4569c282a09e8b0fe6e379149.exe"
            4⤵
            • Executes dropped EXE
            PID:4800
        • 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:1072
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1056
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:4756

      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 254KB
            • SHA256 e20f6e8ed02826c589c4cf389adb66e434e724f14047cc7b278cc93ea872de15
            • MD5 SHA1 SHA512 SSDEEP

            7z.exe

            • Path C:\Program Files\7-Zip\7z.exe
            • Size 573KB
            • SHA256 85433d7e864b2c1999f429ef81a71f2caf69eec0a8756489a01a38d88880b8b9
            • 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 639KB
            • SHA256 cfee92d916fbbb95d8282c3264d3708ad1ddfdd9db4daaf00e0c96a22854c4dc
            • MD5 SHA1 SHA512 SSDEEP

            $$a5F75.bat

            • Path C:\Users\Admin\AppData\Local\Temp\$$a5F75.bat
            • Size 722B
            • SHA256 1e49ecc421b64637fa76ee63805a4ecfbe079b700c76122113529c8fca09c5aa
            • MD5 SHA1 SHA512

            4f02cce0799fab381587075747694cdc4109c8d4569c282a09e8b0fe6e379149.exe.exe

            • Path C:\Users\Admin\AppData\Local\Temp\4f02cce0799fab381587075747694cdc4109c8d4569c282a09e8b0fe6e379149.exe.exe
            • Size 59KB
            • SHA256 ff4ac75c02247000da084de006c214d3dd3583867bd3533ba788e22734c7a2bf
            • MD5 SHA1 SHA512 SSDEEP

            Logo1_.exe

            • Path C:\Windows\Logo1_.exe
            • Size 29KB
            • SHA256 63c7ea87c2ac3c8879bd366f6fe0380d0ad14b974ac44afe93aae0ebb2416f36
            • MD5 SHA1 SHA512 SSDEEP

            _desktop.ini

            • Path F:\$RECYCLE.BIN\S-1-5-21-2539840389-1261165778-1087677076-1000\_desktop.ini
            • Size 9B
            • SHA256 47a22297ce31d17b0f37251ce63cf2eb146700451caab6dd0aa710d2526c8e42
            • MD5 SHA1 SHA512

            memory/1072-27-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1072-33-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1072-37-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1072-20-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1072-1231-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1072-4787-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1072-13-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1072-5226-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1980-0-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1980-10-0x0000000000400000-0x0000000000436000-memory.dmp