Analysis

  • max time kernel
    150s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 03:47

General

  • Target
    3e039882f805063fdfdd9222ec0c4bab6294e48f6aec0dab721baf88fc007ede.exe
  • Size 964KB
  • Sample240613-echfwstbmf
  • SHA256 3e039882f805063fdfdd9222ec0c4bab6294e48f6aec0dab721baf88fc007ede
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3436
      • C:\Users\Admin\AppData\Local\Temp\3e039882f805063fdfdd9222ec0c4bab6294e48f6aec0dab721baf88fc007ede.exe
        "C:\Users\Admin\AppData\Local\Temp\3e039882f805063fdfdd9222ec0c4bab6294e48f6aec0dab721baf88fc007ede.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2976
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4348
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:1384
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a4A28.bat
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:3152
            • C:\Users\Admin\AppData\Local\Temp\3e039882f805063fdfdd9222ec0c4bab6294e48f6aec0dab721baf88fc007ede.exe
              "C:\Users\Admin\AppData\Local\Temp\3e039882f805063fdfdd9222ec0c4bab6294e48f6aec0dab721baf88fc007ede.exe"
              4⤵
              • Executes dropped EXE
              • Suspicious use of AdjustPrivilegeToken
              PID:5080
          • 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:4108
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:1940
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:3752
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:3924
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:464

          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 a31c974ecfc6088a80b1494d4d670eb7d68702d46cbcca0b9c6d3ca5f6332d1d
                • MD5 SHA1 SHA512 SSDEEP

                7z.exe

                • Path C:\Program Files\7-Zip\7z.exe
                • Size 577KB
                • SHA256 3bfe4f70173faf12dafe08bcabf4e8287caea7040a400b4abcc9cb4c833ca3ca
                • 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 f168cda7cfa0f4f1d8dc26f615772410afe41b43fbc3da3cfe2c249b1eadca30
                • MD5 SHA1 SHA512 SSDEEP

                $$a4A28.bat

                • Path C:\Users\Admin\AppData\Local\Temp\$$a4A28.bat
                • Size 722B
                • SHA256 54fed43756562ca4b125c2fef398a93447dc5c2ebe27c8a50acc69c5b0872b37
                • MD5 SHA1 SHA512

                3e039882f805063fdfdd9222ec0c4bab6294e48f6aec0dab721baf88fc007ede.exe.exe

                • Path C:\Users\Admin\AppData\Local\Temp\3e039882f805063fdfdd9222ec0c4bab6294e48f6aec0dab721baf88fc007ede.exe.exe
                • Size 930KB
                • SHA256 1ea0839c8dc95ad2c060af7d042c40c0daed58ce8e4524c0fba12fd73e4afb74
                • MD5 SHA1 SHA512 SSDEEP

                Logo1_.exe

                • Path C:\Windows\Logo1_.exe
                • Size 33KB
                • SHA256 e4b85b1edd03642cf845907985a60ace501a481804fc68d4862e6c119d3fbc18
                • MD5 SHA1 SHA512 SSDEEP

                _desktop.ini

                • Path F:\$RECYCLE.BIN\S-1-5-21-1337824034-2731376981-3755436523-1000\_desktop.ini
                • Size 9B
                • SHA256 47a22297ce31d17b0f37251ce63cf2eb146700451caab6dd0aa710d2526c8e42
                • MD5 SHA1 SHA512

                memory/2976-10-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/2976-0-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/4108-11-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/4108-5220-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/4108-18-0x0000000000400000-0x0000000000440000-memory.dmp

                memory/4108-8677-0x0000000000400000-0x0000000000440000-memory.dmp