Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/06/2024, 18:36

General

  • Target
    dcb18052ff3f86e1929a724781334d85f628c3475d3d5da2c2d1d3ba1fcb84ab.exe
  • Size 717KB
  • Sample240609-w8ylesde5z
  • SHA256 dcb18052ff3f86e1929a724781334d85f628c3475d3d5da2c2d1d3ba1fcb84ab
  • 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:3552
      • C:\Users\Admin\AppData\Local\Temp\dcb18052ff3f86e1929a724781334d85f628c3475d3d5da2c2d1d3ba1fcb84ab.exe
        "C:\Users\Admin\AppData\Local\Temp\dcb18052ff3f86e1929a724781334d85f628c3475d3d5da2c2d1d3ba1fcb84ab.exe"
        2⤵
        • Drops file in Drivers directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4760
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2896
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:4408
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a5573.bat
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:264
            • C:\Users\Admin\AppData\Local\Temp\dcb18052ff3f86e1929a724781334d85f628c3475d3d5da2c2d1d3ba1fcb84ab.exe
              "C:\Users\Admin\AppData\Local\Temp\dcb18052ff3f86e1929a724781334d85f628c3475d3d5da2c2d1d3ba1fcb84ab.exe"
              4⤵
              • Executes dropped EXE
              PID:2492
          • 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:1220
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2812
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:5056
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:3528
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:3592

          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 7fa5727c71a47da122856c4af832bd40f9f9b04393ee2fecb82b5031ba0852e5
                • MD5 SHA1 SHA512 SSDEEP

                7z.exe

                • Path C:\Program Files\7-Zip\7z.exe
                • Size 577KB
                • SHA256 4b2e66cc5fc849819829a4f3f97234c18d47b5b2902af2789e4c92de8d0b7cce
                • 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 636c1c024e59354f13d9bb02fa8f3849112c4557ab790a37146b1c121e597b24
                • MD5 SHA1 SHA512 SSDEEP

                $$a5573.bat

                • Path C:\Users\Admin\AppData\Local\Temp\$$a5573.bat
                • Size 722B
                • SHA256 fe4184827e99990005e4c9b6871410d66a8abe771feabd276ac80a31597b500a
                • MD5 SHA1 SHA512

                dcb18052ff3f86e1929a724781334d85f628c3475d3d5da2c2d1d3ba1fcb84ab.exe.exe

                • Path C:\Users\Admin\AppData\Local\Temp\dcb18052ff3f86e1929a724781334d85f628c3475d3d5da2c2d1d3ba1fcb84ab.exe.exe
                • Size 684KB
                • SHA256 b9b179b305c5268ad428b6ae59de10b4fe99cf0199bbc89b7017181905e97305
                • MD5 SHA1 SHA512 SSDEEP

                Logo1_.exe

                • Path C:\Windows\Logo1_.exe
                • Size 33KB
                • SHA256 0f613830d4414afd617e8e2d765db67ba765ce6d6e97f11b564be43e87ae82a5
                • 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-1-5-21-3571316656-3665257725-2415531812-1000\_desktop.ini
                • Size 8B
                • SHA256 551cc5b618f0fa78108dd2388d9136893adb10499e4836e9728f4e96530bf02f
                • MD5 SHA1 SHA512

                memory/1220-20-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/1220-12-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/1220-5191-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/1220-8668-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/4760-0-0x0000000000400000-0x000000000043E000-memory.dmp

                memory/4760-10-0x0000000000400000-0x000000000043E000-memory.dmp