Analysis

  • max time kernel
    150s
  • 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
    03943a500f966910bfa56820e5aa2fbe0e40602d4494143ab9f04de31c57dbe4.exe
  • Size 959KB
  • Sample240613-yfad8syemb
  • SHA256 03943a500f966910bfa56820e5aa2fbe0e40602d4494143ab9f04de31c57dbe4
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3516
      • C:\Users\Admin\AppData\Local\Temp\03943a500f966910bfa56820e5aa2fbe0e40602d4494143ab9f04de31c57dbe4.exe
        "C:\Users\Admin\AppData\Local\Temp\03943a500f966910bfa56820e5aa2fbe0e40602d4494143ab9f04de31c57dbe4.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:4232
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a5709.bat
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4424
          • C:\Users\Admin\AppData\Local\Temp\03943a500f966910bfa56820e5aa2fbe0e40602d4494143ab9f04de31c57dbe4.exe
            "C:\Users\Admin\AppData\Local\Temp\03943a500f966910bfa56820e5aa2fbe0e40602d4494143ab9f04de31c57dbe4.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:1968
        • 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:1488
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:5108
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2648

      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

            $$a5709.bat

            • Path C:\Users\Admin\AppData\Local\Temp\$$a5709.bat
            • Size 722B
            • SHA256 16da4add72a67ce528d7455e3974506d026ebf2f4870ed941ccbeb836d935dd4
            • MD5 SHA1 SHA512

            03943a500f966910bfa56820e5aa2fbe0e40602d4494143ab9f04de31c57dbe4.exe.exe

            • Path C:\Users\Admin\AppData\Local\Temp\03943a500f966910bfa56820e5aa2fbe0e40602d4494143ab9f04de31c57dbe4.exe.exe
            • Size 930KB
            • SHA256 1ea0839c8dc95ad2c060af7d042c40c0daed58ce8e4524c0fba12fd73e4afb74
            • 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/1488-27-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1488-33-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1488-37-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1488-20-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1488-1231-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1488-11-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1488-4787-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/1488-5226-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/4232-0-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/4232-9-0x0000000000400000-0x0000000000436000-memory.dmp