Analysis

  • max time kernel
    150s
  • max time network
    107s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/04/2024, 13:08

General

  • Target
    4e0ecb99b4ee189092b1aed638135cbc2cdad8321902b9d4330a80e0435dbd9e.exe
  • Size 717KB
  • Sample240409-qc8tmaba5v
  • SHA256 4e0ecb99b4ee189092b1aed638135cbc2cdad8321902b9d4330a80e0435dbd9e
  • 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 28 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3432
      • C:\Users\Admin\AppData\Local\Temp\4e0ecb99b4ee189092b1aed638135cbc2cdad8321902b9d4330a80e0435dbd9e.exe
        "C:\Users\Admin\AppData\Local\Temp\4e0ecb99b4ee189092b1aed638135cbc2cdad8321902b9d4330a80e0435dbd9e.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4100
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1576
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:1468
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a4381.bat
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:4260
            • C:\Users\Admin\AppData\Local\Temp\4e0ecb99b4ee189092b1aed638135cbc2cdad8321902b9d4330a80e0435dbd9e.exe
              "C:\Users\Admin\AppData\Local\Temp\4e0ecb99b4ee189092b1aed638135cbc2cdad8321902b9d4330a80e0435dbd9e.exe"
              4⤵
              • Executes dropped EXE
              PID:692
          • 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:1496
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2704
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:4868
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:4668
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2372

          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 e737572195b0c4d8df6f1211e324b97191d66ba2b409cfaa2dd07fd5b96a87f4
                • MD5 SHA1 SHA512 SSDEEP

                7z.exe

                • Path C:\Program Files\7-Zip\7z.exe
                • Size 577KB
                • SHA256 ed3ad6c04b7778bf946fe1a0cea7b00a82542c7cb9687e562741248ea7657411
                • MD5 SHA1 SHA512 SSDEEP

                vcredist_x86.exe

                • Path C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe
                • Size 488KB
                • SHA256 4d1c2cdbf0684ef3ea3fc7123812b007687ded0a679275e5ea50f1d936a6fe3d
                • MD5 SHA1 SHA512 SSDEEP

                $$a4381.bat

                • Path C:\Users\Admin\AppData\Local\Temp\$$a4381.bat
                • Size 722B
                • SHA256 c9ae331ecf7f53419f947d06549a6ae7711f1e2ed27b10bcacd62dc86dc21052
                • MD5 SHA1 SHA512

                4e0ecb99b4ee189092b1aed638135cbc2cdad8321902b9d4330a80e0435dbd9e.exe.exe

                • Path C:\Users\Admin\AppData\Local\Temp\4e0ecb99b4ee189092b1aed638135cbc2cdad8321902b9d4330a80e0435dbd9e.exe.exe
                • Size 684KB
                • SHA256 b9b179b305c5268ad428b6ae59de10b4fe99cf0199bbc89b7017181905e97305
                • MD5 SHA1 SHA512 SSDEEP

                Logo1_.exe

                • Path C:\Windows\Logo1_.exe
                • Size 33KB
                • SHA256 cdaed7acb956972ce40a95412620150fcf1428c34a8ddbd0e9f0742df0d885bb
                • MD5 SHA1 SHA512 SSDEEP

                _desktop.ini

                • Path F:\$RECYCLE.BIN\S-1-5-21-566096764-1992588923-1249862864-1000\_desktop.ini
                • Size 8B
                • SHA256 8a35cc496890b7089f69f59dd7dd7fed74622e8ff18cf9f99d49c94aa5888c5a
                • MD5 SHA1 SHA512

                memory/1496-2797-0x0000000000400000-0x000000000043F000-memory.dmp

                memory/1496-17-0x0000000000400000-0x000000000043F000-memory.dmp

                memory/1496-10-0x0000000000400000-0x000000000043F000-memory.dmp

                memory/1496-8654-0x0000000000400000-0x000000000043F000-memory.dmp

                memory/4100-0-0x0000000000400000-0x000000000043F000-memory.dmp

                memory/4100-8-0x0000000000400000-0x000000000043F000-memory.dmp