Analysis

  • max time kernel
    149s
  • max time network
    97s
  • 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, 16:29

General

  • Target
    270829b95b6dd6e4e3233ff54bc0ef2406e45e48c5915150401273309450188c.exe
  • Size 577KB
  • Sample240603-tzk8made65
  • SHA256 270829b95b6dd6e4e3233ff54bc0ef2406e45e48c5915150401273309450188c
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 64 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3508
      • C:\Users\Admin\AppData\Local\Temp\270829b95b6dd6e4e3233ff54bc0ef2406e45e48c5915150401273309450188c.exe
        "C:\Users\Admin\AppData\Local\Temp\270829b95b6dd6e4e3233ff54bc0ef2406e45e48c5915150401273309450188c.exe"
        2⤵
        • Drops file in Drivers directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2780
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3008
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2988
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a3CDA.bat
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1856
            • C:\Users\Admin\AppData\Local\Temp\270829b95b6dd6e4e3233ff54bc0ef2406e45e48c5915150401273309450188c.exe
              "C:\Users\Admin\AppData\Local\Temp\270829b95b6dd6e4e3233ff54bc0ef2406e45e48c5915150401273309450188c.exe"
              4⤵
              • Executes dropped EXE
              PID:2984
          • C:\Windows\Logo1_.exe
            C:\Windows\Logo1_.exe
            3⤵
            • Drops file in Drivers directory
            • Drops startup file
            • 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:1428
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2972
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2076
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:1916
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:1776

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                7z.exe

                • Path C:\Program Files\7-Zip\7z.exe
                • Size 577KB
                • SHA256 270829b95b6dd6e4e3233ff54bc0ef2406e45e48c5915150401273309450188c
                • 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 644KB
                • SHA256 864b33d1d5b355ef42f7911c58ec7b33a902815bfbd69d73e7f304ce49ae7ef7
                • MD5 SHA1 SHA512 SSDEEP

                $$a3CDA.bat

                • Path C:\Users\Admin\AppData\Local\Temp\$$a3CDA.bat
                • Size 722B
                • SHA256 53e079dcf175cda0586e968df72fa2fcba2f6cf1434fe2b8da91e070323c4464
                • MD5 SHA1 SHA512

                270829b95b6dd6e4e3233ff54bc0ef2406e45e48c5915150401273309450188c.exe.exe

                • Path C:\Users\Admin\AppData\Local\Temp\270829b95b6dd6e4e3233ff54bc0ef2406e45e48c5915150401273309450188c.exe.exe
                • Size 544KB
                • SHA256 8cebb25e240db3b6986fcaed6bc0b900fa09dad763a56fb71273529266c5c525
                • MD5 SHA1 SHA512 SSDEEP

                Logo1_.exe

                • Path C:\Windows\Logo1_.exe
                • Size 33KB
                • SHA256 25ba409f54719204b0cc95c4f522e39892c2cf19acb35df862bf9c47556c1c45
                • MD5 SHA1 SHA512 SSDEEP

                hosts

                • Path C:\Windows\system32\drivers\etc\hosts
                • Size 842B
                • SHA256 d9704dab05e988be3e5e7b7c020bb9814906d11bb9c31ad80d4ed1316f6bc94e
                • MD5 SHA1 SHA512

                _desktop.ini

                • Path F:\$RECYCLE.BIN\S-1-5-21-540404634-651139247-2967210625-1000\_desktop.ini
                • Size 8B
                • SHA256 d9d875805581110dafdfb2ceb34c5e60f50fe720963f9813c287e4845248d208
                • MD5 SHA1 SHA512

                memory/1428-20-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/1428-13-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/1428-2844-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/1428-8662-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/2780-10-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/2780-0-0x0000000000400000-0x000000000043E000-memory.dmp