Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 18:29

General

  • Target
    82f81d3bc83d44d6d4f6b93e1c85a63aa77a3f637de2688624471cf47d58bbb1.exe
  • Size 93KB
  • Sample240603-w45tyafh78
  • SHA256 82f81d3bc83d44d6d4f6b93e1c85a63aa77a3f637de2688624471cf47d58bbb1
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • 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 29 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3444
      • C:\Users\Admin\AppData\Local\Temp\82f81d3bc83d44d6d4f6b93e1c85a63aa77a3f637de2688624471cf47d58bbb1.exe
        "C:\Users\Admin\AppData\Local\Temp\82f81d3bc83d44d6d4f6b93e1c85a63aa77a3f637de2688624471cf47d58bbb1.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3608
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4696
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:1168
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a51C9.bat
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1720
            • C:\Users\Admin\AppData\Local\Temp\82f81d3bc83d44d6d4f6b93e1c85a63aa77a3f637de2688624471cf47d58bbb1.exe
              "C:\Users\Admin\AppData\Local\Temp\82f81d3bc83d44d6d4f6b93e1c85a63aa77a3f637de2688624471cf47d58bbb1.exe"
              4⤵
              • Executes dropped EXE
              PID:2208
          • C:\Windows\Logo1_.exe
            C:\Windows\Logo1_.exe
            3⤵
            • 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:4416
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:1288
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2940
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2948
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:3952

          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 258KB
                • SHA256 cd9b6b425d624455491f2ecded3dd2eb9ea18a9a01a9e7024a7265b913cfb3f4
                • MD5 SHA1 SHA512 SSDEEP

                7z.exe

                • Path C:\Program Files\7-Zip\7z.exe
                • Size 577KB
                • SHA256 4d5cef8d007e7c92fa50bd8e1d88e35f4f12e1b066de4a94d703d41e093cfc25
                • 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 f168cda7cfa0f4f1d8dc26f615772410afe41b43fbc3da3cfe2c249b1eadca30
                • MD5 SHA1 SHA512 SSDEEP

                $$a51C9.bat

                • Path C:\Users\Admin\AppData\Local\Temp\$$a51C9.bat
                • Size 722B
                • SHA256 ee259dd1ccfab8c89f6014c65032b9df546995735588398bf9e50314716349ab
                • MD5 SHA1 SHA512

                82f81d3bc83d44d6d4f6b93e1c85a63aa77a3f637de2688624471cf47d58bbb1.exe.exe

                • Path C:\Users\Admin\AppData\Local\Temp\82f81d3bc83d44d6d4f6b93e1c85a63aa77a3f637de2688624471cf47d58bbb1.exe.exe
                • Size 60KB
                • SHA256 751941b4e09898c31791efeb5f90fc7367c89831d4a98637ed505e40763e287b
                • MD5 SHA1 SHA512 SSDEEP

                Logo1_.exe

                • Path C:\Windows\Logo1_.exe
                • Size 33KB
                • SHA256 4836226708703a884cbf785b4d4f10d3042daac184de30a47263d47c9f31c9b4
                • MD5 SHA1 SHA512 SSDEEP

                _desktop.ini

                • Path F:\$RECYCLE.BIN\S-1-5-21-2539840389-1261165778-1087677076-1000\_desktop.ini
                • Size 8B
                • SHA256 d9d875805581110dafdfb2ceb34c5e60f50fe720963f9813c287e4845248d208
                • MD5 SHA1 SHA512

                memory/3608-10-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/3608-0-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/4416-11-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/4416-4880-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/4416-18-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/4416-8667-0x0000000000400000-0x0000000000440000-memory.dmp