Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    02/06/2024, 22:29

General

  • Target
    10b71c1e29e505566b0c3894ebc30a9363a3fc5a6ffd875a4dff7f762155b3ef.exe
  • Size 491KB
  • Sample240602-2efreaad88
  • SHA256 10b71c1e29e505566b0c3894ebc30a9363a3fc5a6ffd875a4dff7f762155b3ef
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 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 43 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1256
      • C:\Users\Admin\AppData\Local\Temp\10b71c1e29e505566b0c3894ebc30a9363a3fc5a6ffd875a4dff7f762155b3ef.exe
        "C:\Users\Admin\AppData\Local\Temp\10b71c1e29e505566b0c3894ebc30a9363a3fc5a6ffd875a4dff7f762155b3ef.exe"
        2⤵
        • Drops file in Drivers directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2180
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1812
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2880
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$a81C.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:1364
            • C:\Users\Admin\AppData\Local\Temp\10b71c1e29e505566b0c3894ebc30a9363a3fc5a6ffd875a4dff7f762155b3ef.exe
              "C:\Users\Admin\AppData\Local\Temp\10b71c1e29e505566b0c3894ebc30a9363a3fc5a6ffd875a4dff7f762155b3ef.exe"
              4⤵
              • Executes dropped EXE
              PID:2600
          • C:\Windows\Logo1_.exe
            C:\Windows\Logo1_.exe
            3⤵
            • Drops file in Drivers directory
            • 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:2804
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2692
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2588
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2640
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2716

          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 f4126de53afbb2a68dead67d01bae1d52b38ae711b06d94629f952099e691d32
                • MD5 SHA1 SHA512 SSDEEP

                vcredist_x64.exe

                • Path C:\ProgramData\Package Cache\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}\vcredist_x64.exe
                • Size 478KB
                • SHA256 cfc87b2273f90e5125ca09d4fed15c56a82dabc54e418301f8ce23476201950e
                • MD5 SHA1 SHA512 SSDEEP

                $$a81C.bat

                • Path C:\Users\Admin\AppData\Local\Temp\$$a81C.bat
                • Size 721B
                • SHA256 666224e8072a5a5765f69c71b102bca37cb658ee7aeb44a8ba0b11a591989954
                • MD5 SHA1 SHA512

                10b71c1e29e505566b0c3894ebc30a9363a3fc5a6ffd875a4dff7f762155b3ef.exe.exe

                • Path C:\Users\Admin\AppData\Local\Temp\10b71c1e29e505566b0c3894ebc30a9363a3fc5a6ffd875a4dff7f762155b3ef.exe.exe
                • Size 458KB
                • SHA256 344f076bb1211cb02eca9e5ed2c0ce59bcf74ccbc749ec611538fa14ecb9aad2
                • MD5 SHA1 SHA512 SSDEEP

                Logo1_.exe

                • Path C:\Windows\Logo1_.exe
                • Size 33KB
                • SHA256 cf2ba6f24373f440531b5ad69cf882e8ffa80a9c556124b944dad25a0d0e35bf
                • MD5 SHA1 SHA512 SSDEEP

                hosts

                • Path C:\Windows\system32\drivers\etc\hosts
                • Size 832B
                • SHA256 1965854dfa54c72529c88c7d9f41fa31b4140cad04cf03d3f0f2e7601fcbdc6c
                • MD5 SHA1 SHA512

                _desktop.ini

                • Path F:\$RECYCLE.BIN\S-1-5-21-3627615824-4061627003-3019543961-1000\_desktop.ini
                • Size 8B
                • SHA256 7a7b688ede50bbaf08d4579fbd8c6b6c99d9dd1206d95ab24d8174eb9be98759
                • MD5 SHA1 SHA512

                memory/1256-29-0x0000000002AE0000-0x0000000002AE1000-memory.dmp

                memory/2180-0-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/2180-18-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/2804-33-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/2804-19-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/2804-3281-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/2804-4086-0x0000000000400000-0x000000000043E000-memory.dmp