Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/11/2024, 02:05

General

  • Target
    afe39892057dcde76f0371348f7c3ed59f8fad142b912b265ed8e5347dba578a.exe
  • Size 3.7MB
  • Sample241112-ch5ghasdmk
  • SHA256 afe39892057dcde76f0371348f7c3ed59f8fad142b912b265ed8e5347dba578a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Renames multiple (216) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3416
      • C:\Users\Admin\AppData\Local\Temp\afe39892057dcde76f0371348f7c3ed59f8fad142b912b265ed8e5347dba578a.exe
        "C:\Users\Admin\AppData\Local\Temp\afe39892057dcde76f0371348f7c3ed59f8fad142b912b265ed8e5347dba578a.exe"
        2⤵
        • Drops file in Drivers directory
        • Adds Run key to start application
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4416
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2912
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:3628
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a8944.bat
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2396
          • C:\Users\Admin\AppData\Local\Temp\afe39892057dcde76f0371348f7c3ed59f8fad142b912b265ed8e5347dba578a.exe
            "C:\Users\Admin\AppData\Local\Temp\afe39892057dcde76f0371348f7c3ed59f8fad142b912b265ed8e5347dba578a.exe"
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:4436
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Drops file in Drivers directory
          • Executes dropped EXE
          • Adds Run key to start application
          • 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:4352
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1364
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:3720
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4536
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:3396

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          7z.exe.Exe

          • Path C:\Program Files\7-Zip\7z.exe.Exe
          • Size 607KB
          • SHA256 935af3e564da68a255b9cd0f203aceb3c7ce67b89a9299e6161317fd42b0221f
          • MD5 SHA1 SHA512 SSDEEP

          $$a8944.bat

          • Path C:\Users\Admin\AppData\Local\Temp\$$a8944.bat
          • Size 722B
          • SHA256 9ece2693f4541976c742cbac3b29170b878cb0fbc4a21d893c55424107d59623
          • MD5 SHA1 SHA512

          afe39892057dcde76f0371348f7c3ed59f8fad142b912b265ed8e5347dba578a.exe.exe

          • Path C:\Users\Admin\AppData\Local\Temp\afe39892057dcde76f0371348f7c3ed59f8fad142b912b265ed8e5347dba578a.exe.exe
          • Size 3.7MB
          • SHA256 fc13be5a66383ba13ab19a8a4a80269e355dd1a4508b641e75637520f17b43b9
          • MD5 SHA1 SHA512 SSDEEP

          Logo1_.exe

          • Path C:\Windows\Logo1_.exe
          • Size 63KB
          • SHA256 572091be0ed663d1a39c44b6c07a00cec1a94de809fae9f2a82ac7b921c19855
          • MD5 SHA1 SHA512 SSDEEP

          hosts

          • Path C:\Windows\system32\drivers\etc\hosts
          • Size 842B
          • SHA256 d9704dab05e988be3e5e7b7c020bb9814906d11bb9c31ad80d4ed1316f6bc94e
          • MD5 SHA1 SHA512

          memory/4352-11-0x0000000000400000-0x000000000043E000-memory.dmp

          memory/4352-14-0x0000000000440000-0x0000000000480000-memory.dmp

          memory/4352-38-0x0000000000400000-0x000000000043E000-memory.dmp

          memory/4352-39-0x0000000000440000-0x0000000000480000-memory.dmp

          memory/4416-0-0x0000000000400000-0x000000000043E000-memory.dmp

          memory/4416-1-0x0000000000440000-0x0000000000460000-memory.dmp

          memory/4416-10-0x0000000000400000-0x000000000043E000-memory.dmp