Analysis

  • max time kernel
    146s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    15/04/2022, 00:47

General

  • Target

    afe6ffe01133465cb36e3822a6a0583dc2041f405d82fe231d0ecc95ec05c7c7.exe

  • Size

    1.3MB

  • MD5

    911fba11f3c34d2e3d58b3a1686886ed

  • SHA1

    579dd4231fc1dbbe109f3beb08a793ed02eff09e

  • SHA256

    afe6ffe01133465cb36e3822a6a0583dc2041f405d82fe231d0ecc95ec05c7c7

  • SHA512

    49f99c8cf0812db0b88f691d532ddea4f2bc8ef9b4b6e99842f402bb370e53684e86dd3bd2b506785c13dcbb0745ff40c8129249989aaca7177a736b43076f9c

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

Wraith00hrs

C2

100.26.221.183:4782

Mutex

VNM_MUTEX_kv7tSTHxhbSWaYVuIh

Attributes
  • encryption_key

    VyRhk9JpIqX4HHIRBxn8

  • install_name

    windows chrome.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    chrome Startup

  • subdirectory

    SubDir

Extracted

Family

warzonerat

C2

100.26.221.183:5200

Signatures

  • Contains code to disable Windows Defender 11 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Quasar Payload 11 IoCs
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • VenomRAT

    VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

  • WarzoneRat, AveMaria

    WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.

  • Warzone RAT Payload 8 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\afe6ffe01133465cb36e3822a6a0583dc2041f405d82fe231d0ecc95ec05c7c7.exe
    "C:\Users\Admin\AppData\Local\Temp\afe6ffe01133465cb36e3822a6a0583dc2041f405d82fe231d0ecc95ec05c7c7.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1580
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Jjlxrtnulqhzcd.vbs"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1152
      • C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe
        "C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Windows security modification
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1996
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "chrome Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe" /rl HIGHEST /f
          4⤵
          • Creates scheduled task(s)
          PID:1516
        • C:\Users\Admin\AppData\Roaming\SubDir\windows chrome.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\windows chrome.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1492
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks" /create /tn "chrome Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\windows chrome.exe" /rl HIGHEST /f
            5⤵
            • Creates scheduled task(s)
            PID:1104
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "powershell" Get-MpPreference -verbose
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1988
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k start /b del /q/f/s %TEMP%\* & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:948
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
            5⤵
              PID:1564
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\olaI1dgCPndH.bat" "
            4⤵
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:1464
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              5⤵
                PID:1268
              • C:\Windows\SysWOW64\PING.EXE
                ping -n 10 localhost
                5⤵
                • Runs ping.exe
                PID:2024
              • C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe
                "C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe"
                5⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:1044
        • C:\Users\Admin\AppData\Local\Temp\afe6ffe01133465cb36e3822a6a0583dc2041f405d82fe231d0ecc95ec05c7c7.exe
          "C:\Users\Admin\AppData\Local\Temp\afe6ffe01133465cb36e3822a6a0583dc2041f405d82fe231d0ecc95ec05c7c7.exe"
          2⤵
          • Adds Run key to start application
          PID:2036

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe

        Filesize

        534KB

        MD5

        4ad1c7279f350bad69cec245674fbdbd

        SHA1

        af9cb6ea681d09f9c535d5bd55a9adcf5c9bc7f2

        SHA256

        9505524dff86345befdf3ce0dba5a7a58abe57725badbe0aa19a16ac20579422

        SHA512

        740190c6aceab1a81c37455cf86ae87908f77feb1dcff042c90ade2baeae730fdd0ade9f3921b56df6f55e726e2fb284909c62a0862147f6e679b7aa51f79d86

      • C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe

        Filesize

        534KB

        MD5

        4ad1c7279f350bad69cec245674fbdbd

        SHA1

        af9cb6ea681d09f9c535d5bd55a9adcf5c9bc7f2

        SHA256

        9505524dff86345befdf3ce0dba5a7a58abe57725badbe0aa19a16ac20579422

        SHA512

        740190c6aceab1a81c37455cf86ae87908f77feb1dcff042c90ade2baeae730fdd0ade9f3921b56df6f55e726e2fb284909c62a0862147f6e679b7aa51f79d86

      • C:\Users\Admin\AppData\Local\Temp\$77-Venom.exe

        Filesize

        534KB

        MD5

        4ad1c7279f350bad69cec245674fbdbd

        SHA1

        af9cb6ea681d09f9c535d5bd55a9adcf5c9bc7f2

        SHA256

        9505524dff86345befdf3ce0dba5a7a58abe57725badbe0aa19a16ac20579422

        SHA512

        740190c6aceab1a81c37455cf86ae87908f77feb1dcff042c90ade2baeae730fdd0ade9f3921b56df6f55e726e2fb284909c62a0862147f6e679b7aa51f79d86

      • C:\Users\Admin\AppData\Local\Temp\Jjlxrtnulqhzcd.vbs

        Filesize

        97B

        MD5

        21cf56d4b0a76046820523108fb676e0

        SHA1

        9535221712c50c9a3fa7e06efe5e1efc016f715d

        SHA256

        2f931374cab0f3601d1698f4943f8e4f83cbfc3efb478bf518091ab23642dbc3

        SHA512

        5c2238aece0a82b63a541142dcee3527e3d1baad206d3fb7c3d226fd99c26c1c2d5d4113584be08118316fd5d78c3f7aca2f3d0e957c87f76b92615a24601cd5

      • C:\Users\Admin\AppData\Local\Temp\olaI1dgCPndH.bat

        Filesize

        206B

        MD5

        a66be89448206efe13c6a3e4f5d85a64

        SHA1

        d84eab302b968aad0babca4ca65bb600c96aa30d

        SHA256

        ed56bd15dc514ca5ca19275d506168e1870df45915f41c75910aa89f3bd50a6b

        SHA512

        24bfc9d957ebe90a37be6fa87dcdc4d6b214b68a00cfa50150c0d53e9c29fcf4175038d5ed62c96c86bd530ec9a84cc948188c49a7c543014d9fbecc2e4e5513

      • C:\Users\Admin\AppData\Roaming\SubDir\windows chrome.exe

        Filesize

        534KB

        MD5

        4ad1c7279f350bad69cec245674fbdbd

        SHA1

        af9cb6ea681d09f9c535d5bd55a9adcf5c9bc7f2

        SHA256

        9505524dff86345befdf3ce0dba5a7a58abe57725badbe0aa19a16ac20579422

        SHA512

        740190c6aceab1a81c37455cf86ae87908f77feb1dcff042c90ade2baeae730fdd0ade9f3921b56df6f55e726e2fb284909c62a0862147f6e679b7aa51f79d86

      • C:\Users\Admin\AppData\Roaming\SubDir\windows chrome.exe

        Filesize

        534KB

        MD5

        4ad1c7279f350bad69cec245674fbdbd

        SHA1

        af9cb6ea681d09f9c535d5bd55a9adcf5c9bc7f2

        SHA256

        9505524dff86345befdf3ce0dba5a7a58abe57725badbe0aa19a16ac20579422

        SHA512

        740190c6aceab1a81c37455cf86ae87908f77feb1dcff042c90ade2baeae730fdd0ade9f3921b56df6f55e726e2fb284909c62a0862147f6e679b7aa51f79d86

      • \Users\Admin\AppData\Local\Temp\$77-Venom.exe

        Filesize

        534KB

        MD5

        4ad1c7279f350bad69cec245674fbdbd

        SHA1

        af9cb6ea681d09f9c535d5bd55a9adcf5c9bc7f2

        SHA256

        9505524dff86345befdf3ce0dba5a7a58abe57725badbe0aa19a16ac20579422

        SHA512

        740190c6aceab1a81c37455cf86ae87908f77feb1dcff042c90ade2baeae730fdd0ade9f3921b56df6f55e726e2fb284909c62a0862147f6e679b7aa51f79d86

      • \Users\Admin\AppData\Local\Temp\$77-Venom.exe

        Filesize

        534KB

        MD5

        4ad1c7279f350bad69cec245674fbdbd

        SHA1

        af9cb6ea681d09f9c535d5bd55a9adcf5c9bc7f2

        SHA256

        9505524dff86345befdf3ce0dba5a7a58abe57725badbe0aa19a16ac20579422

        SHA512

        740190c6aceab1a81c37455cf86ae87908f77feb1dcff042c90ade2baeae730fdd0ade9f3921b56df6f55e726e2fb284909c62a0862147f6e679b7aa51f79d86

      • \Users\Admin\AppData\Roaming\SubDir\windows chrome.exe

        Filesize

        534KB

        MD5

        4ad1c7279f350bad69cec245674fbdbd

        SHA1

        af9cb6ea681d09f9c535d5bd55a9adcf5c9bc7f2

        SHA256

        9505524dff86345befdf3ce0dba5a7a58abe57725badbe0aa19a16ac20579422

        SHA512

        740190c6aceab1a81c37455cf86ae87908f77feb1dcff042c90ade2baeae730fdd0ade9f3921b56df6f55e726e2fb284909c62a0862147f6e679b7aa51f79d86

      • memory/1044-102-0x00000000001F0000-0x000000000027C000-memory.dmp

        Filesize

        560KB

      • memory/1152-58-0x0000000076811000-0x0000000076813000-memory.dmp

        Filesize

        8KB

      • memory/1492-87-0x00000000002F0000-0x000000000037C000-memory.dmp

        Filesize

        560KB

      • memory/1580-54-0x0000000000A50000-0x0000000000BA8000-memory.dmp

        Filesize

        1.3MB

      • memory/1580-64-0x0000000004360000-0x000000000437C000-memory.dmp

        Filesize

        112KB

      • memory/1580-55-0x00000000044B0000-0x000000000453C000-memory.dmp

        Filesize

        560KB

      • memory/1580-74-0x0000000000255000-0x0000000000266000-memory.dmp

        Filesize

        68KB

      • memory/1988-90-0x000000006EF00000-0x000000006F4AB000-memory.dmp

        Filesize

        5.7MB

      • memory/1988-92-0x0000000000662000-0x0000000000664000-memory.dmp

        Filesize

        8KB

      • memory/1996-63-0x0000000000F40000-0x0000000000FCC000-memory.dmp

        Filesize

        560KB

      • memory/2036-71-0x0000000000400000-0x0000000000554000-memory.dmp

        Filesize

        1.3MB

      • memory/2036-75-0x0000000000400000-0x0000000000554000-memory.dmp

        Filesize

        1.3MB

      • memory/2036-73-0x0000000000400000-0x0000000000554000-memory.dmp

        Filesize

        1.3MB

      • memory/2036-81-0x0000000000400000-0x0000000000554000-memory.dmp

        Filesize

        1.3MB

      • memory/2036-70-0x0000000000400000-0x0000000000554000-memory.dmp

        Filesize

        1.3MB

      • memory/2036-68-0x0000000000400000-0x0000000000554000-memory.dmp

        Filesize

        1.3MB

      • memory/2036-66-0x0000000000400000-0x0000000000554000-memory.dmp

        Filesize

        1.3MB

      • memory/2036-65-0x0000000000400000-0x0000000000554000-memory.dmp

        Filesize

        1.3MB

      • memory/2036-76-0x0000000000400000-0x0000000000554000-memory.dmp

        Filesize

        1.3MB

      • memory/2036-80-0x0000000000400000-0x0000000000554000-memory.dmp

        Filesize

        1.3MB