Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    19/01/2024, 15:23

General

  • Target
    67f64deda3027f9fcdd4b5d9568d37ca.exe
  • Size 1.5MB
  • Sample240119-ssf5nahbd9
  • SHA256 4100053b3cc8236c5fefd63c3773e81c5daea40638bcafc588b2127d9a191670
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • cryptbot

C2
  • ewauhc58.top

  • morexn05.top

Attributes
  • payload_url

    http://winorm07.top/download.php?file=lv.exe

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • CryptBot payload 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\67f64deda3027f9fcdd4b5d9568d37ca.exe
    "C:\Users\Admin\AppData\Local\Temp\67f64deda3027f9fcdd4b5d9568d37ca.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2888
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c JUQpepOg
      2⤵
        PID:2052
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c cmd < Ecco.xlm
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1264
        • C:\Windows\SysWOW64\cmd.exe
          cmd
          3⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2384
          • C:\Windows\SysWOW64\findstr.exe
            findstr /V /R "^eNKbLEuNmZeVzmbqrPjFSkfDWrCYKYlVKuwVuMOOuBEruoAlgWCLlQPRnuBIwoeBOikjbBUdwnnsGkbNCsJOcmLTslbZlyMXnrgZWhNMejJLsnljJOyKmgufcsVht$" Vento.xlm
            4⤵
              PID:2980
            • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Crescente.exe.com
              Crescente.exe.com W
              4⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:2548
              • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Crescente.exe.com
                C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Crescente.exe.com W
                5⤵
                • Executes dropped EXE
                • Checks processor information in registry
                • Suspicious use of FindShellTrayWindow
                PID:2656
            • C:\Windows\SysWOW64\PING.EXE
              ping localhost -n 30
              4⤵
              • Runs ping.exe
              PID:2560

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            Crescente.exe.com

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Crescente.exe.com
            • Size 805KB
            • SHA256 848758eeb00ef5fa96c1b0fe61c28ff1b98cb8d24bc05f20c6223b6ee1cf15ad
            • MD5 SHA1 SHA512 SSDEEP

            Crescente.exe.com

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Crescente.exe.com
            • Size 655KB
            • SHA256 e6e97efc2b5ce218465381a65776620acc262ff01d1e740d065b868a3f3f522e
            • MD5 SHA1 SHA512 SSDEEP

            Crescente.exe.com

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Crescente.exe.com
            • Size 599KB
            • SHA256 c7d0db9f9182b1ad766c58604bcdf4c97d8341282ed5d102df46218baefa22de
            • MD5 SHA1 SHA512 SSDEEP

            Ecco.xlm

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Ecco.xlm
            • Size 499B
            • SHA256 2f0a4a9283fb38f5f88376fa00844eb3141e1a0492ed42b38918df92c6f365e3
            • MD5 SHA1 SHA512

            Par.xlm

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Par.xlm
            • Size 600KB
            • SHA256 0e9c8217b334c63a0db73b9513bcb93e12ea52b4315d7412a0fc8c2ac34f4a26
            • MD5 SHA1 SHA512 SSDEEP

            Sommesso.xlm

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Sommesso.xlm
            • Size 697KB
            • SHA256 7d766f03577e7bc27034b4657858182a06e1c632fcf3c8ff8afea46937e1c9c9
            • MD5 SHA1 SHA512 SSDEEP

            Vento.xlm

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Vento.xlm
            • Size 808KB
            • SHA256 813f46cb98e23ce5cda6e67977a423e26d9f0934049178e4a499db61a68a944f
            • MD5 SHA1 SHA512 SSDEEP

            BjPqCggnUKSWe.zip

            • Path C:\Users\Admin\AppData\Local\Temp\jnL8dk5\BjPqCggnUKSWe.zip
            • Size 37KB
            • SHA256 6d8b83464bf22bbbcaebb0bb1f647bc67bc043b8b075e58f19e997454caca7c9
            • MD5 SHA1 SHA512 SSDEEP

            _Information.txt

            • Path C:\Users\Admin\AppData\Local\Temp\jnL8dk5\_Files\_Information.txt
            • Size 8KB
            • SHA256 b3bdd8e638d7319dc7f5bc67cdd471bbc4fd8cd0df5821d05896843603ccc71d
            • MD5 SHA1 SHA512 SSDEEP

            _Screen_Desktop.jpeg

            • Path C:\Users\Admin\AppData\Local\Temp\jnL8dk5\_Files\_Screen_Desktop.jpeg
            • Size 44KB
            • SHA256 e59600d6ae89e00aaa9b3ced80aff542ca310833b46f77d895787bc51621dde2
            • MD5 SHA1 SHA512 SSDEEP

            system_info.txt

            • Path C:\Users\Admin\AppData\Local\Temp\jnL8dk5\files_\system_info.txt
            • Size 700B
            • SHA256 97077381e1e3a05201b1dc51ab678dc8541c79980e1dcd388a6756b5015e02dd
            • MD5 SHA1 SHA512

            system_info.txt

            • Path C:\Users\Admin\AppData\Local\Temp\jnL8dk5\files_\system_info.txt
            • Size 8KB
            • SHA256 e0f368c3d05fccc099a1ff4c76ecb5c6c1ad08a2011be772dde11b567469605a
            • MD5 SHA1 SHA512 SSDEEP

            Crescente.exe.com

            • Path \Users\Admin\AppData\Local\Temp\IXP000.TMP\Crescente.exe.com
            • Size 799KB
            • SHA256 e1866f897901fe913b78ca6535cb90cabed8733620e37af4abd7545595541fd7
            • MD5 SHA1 SHA512 SSDEEP

            Crescente.exe.com

            • Path \Users\Admin\AppData\Local\Temp\IXP000.TMP\Crescente.exe.com
            • Size 761KB
            • SHA256 dd796168426ac68b597a046aeb88268910b70271bd07982dd78dccdc610e99c2
            • MD5 SHA1 SHA512 SSDEEP

            memory/2656-28-0x0000000003960000-0x0000000003A03000-memory.dmp

            memory/2656-30-0x0000000003960000-0x0000000003A03000-memory.dmp

            memory/2656-31-0x0000000003960000-0x0000000003A03000-memory.dmp

            memory/2656-32-0x00000000030E0000-0x00000000030E1000-memory.dmp

            memory/2656-29-0x0000000003960000-0x0000000003A03000-memory.dmp

            memory/2656-24-0x0000000000210000-0x0000000000211000-memory.dmp

            memory/2656-27-0x0000000003960000-0x0000000003A03000-memory.dmp

            memory/2656-26-0x0000000003960000-0x0000000003A03000-memory.dmp

            memory/2656-251-0x0000000003960000-0x0000000003A03000-memory.dmp

            memory/2656-252-0x00000000030E0000-0x00000000030E1000-memory.dmp

            memory/2656-25-0x0000000003960000-0x0000000003A03000-memory.dmp