Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/09/2024, 14:29

General

  • Target
    b587553762137b14ad6390d3a62a487917256cc6d66fdbd9310eddd131982454.exe
  • Size 93KB
  • Sample240921-rt2x3sxcpl
  • SHA256 b587553762137b14ad6390d3a62a487917256cc6d66fdbd9310eddd131982454
  • MD5 SHA1 SHA512 SSDEEP

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
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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:3552
      • C:\Users\Admin\AppData\Local\Temp\b587553762137b14ad6390d3a62a487917256cc6d66fdbd9310eddd131982454.exe
        "C:\Users\Admin\AppData\Local\Temp\b587553762137b14ad6390d3a62a487917256cc6d66fdbd9310eddd131982454.exe"
        2⤵
        • Drops file in Drivers directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1404
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2008
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:5056
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a8F11.bat
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3984
          • C:\Users\Admin\AppData\Local\Temp\b587553762137b14ad6390d3a62a487917256cc6d66fdbd9310eddd131982454.exe
            "C:\Users\Admin\AppData\Local\Temp\b587553762137b14ad6390d3a62a487917256cc6d66fdbd9310eddd131982454.exe"
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:1972
        • 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
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4716
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4988
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:1952
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:5076
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:928

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          GoogleUpdateCore.exe

          • Path C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe
          • Size 251KB
          • SHA256 5591244c79a8e0e04bbc4e36e6bf4a55ec59b3d3f4b20d027a668c7f60125dcb
          • MD5 SHA1 SHA512 SSDEEP

          UnregisterPing.exe

          • Path C:\Program Files\UnregisterPing.exe
          • Size 388KB
          • SHA256 10cffec22eff6207eb45e11acf4ea47052c77fa6e7832f237ce572647d9df134
          • 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 e33cff13b2b5307aaa06fc8f6d15ebe31eeb5ac6ad8d12b4b5c877eb34cca70c
          • MD5 SHA1 SHA512 SSDEEP

          $$a8F11.bat

          • Path C:\Users\Admin\AppData\Local\Temp\$$a8F11.bat
          • Size 722B
          • SHA256 5cbd957e5cbbb2ef1c509c5a91dc6f678c482f923bcdca50af571233bad6bfef
          • MD5 SHA1 SHA512

          b587553762137b14ad6390d3a62a487917256cc6d66fdbd9310eddd131982454.exe.exe

          • Path C:\Users\Admin\AppData\Local\Temp\b587553762137b14ad6390d3a62a487917256cc6d66fdbd9310eddd131982454.exe.exe
          • Size 60KB
          • SHA256 e362670f93cdd952335b1a41e5529f184f2022ea4d41817a9781b150b062511c
          • MD5 SHA1 SHA512 SSDEEP

          Logo1_.exe

          • Path C:\Windows\Logo1_.exe
          • Size 33KB
          • SHA256 1a8911fd47aa3e98991935402374717b26afeed5d8eb431edcd4625f1a16f962
          • 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-1-5-21-786284298-625481688-3210388970-1000\_desktop.ini
          • Size 9B
          • SHA256 f3aa35be7048ddbf11fc581e5f9476745d75bcf097e121ba2915614e360a0cdc
          • MD5 SHA1 SHA512

          memory/1404-9-0x0000000000400000-0x000000000043E000-memory.dmp

          memory/1404-0-0x0000000000400000-0x000000000043E000-memory.dmp

          memory/4716-19-0x0000000000400000-0x000000000043E000-memory.dmp

          memory/4716-10-0x0000000000400000-0x000000000043E000-memory.dmp

          memory/4716-2892-0x0000000000400000-0x000000000043E000-memory.dmp

          memory/4716-8704-0x0000000000400000-0x000000000043E000-memory.dmp