Analysis

  • max time kernel
    156s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    22/02/2022, 21:15

General

  • Target

    0a6122f38d670eec50dfb91aeb8791c7ce24928480e4a32793d71e472a55c1f7.exe

  • Size

    2.2MB

  • MD5

    7274a59e5c87187d46207585fc7e9f14

  • SHA1

    4dd4feb0a99f3e67ca075572f2a4e8007b5e87fe

  • SHA256

    0a6122f38d670eec50dfb91aeb8791c7ce24928480e4a32793d71e472a55c1f7

  • SHA512

    5e82120d85131b684e75e66b8d63b3816a0c08cf678df4f4447d15f11ef66d04ca62f146865164483d0d5ba665e9f3452816226675fdcf85644cbeb8258696d6

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    decompiller=kid

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • NirSoft MailPassView 8 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 8 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 34 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a6122f38d670eec50dfb91aeb8791c7ce24928480e4a32793d71e472a55c1f7.exe
    "C:\Users\Admin\AppData\Local\Temp\0a6122f38d670eec50dfb91aeb8791c7ce24928480e4a32793d71e472a55c1f7.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:868
    • C:\Users\Admin\AppData\Local\Temp\Synapse.exe
      "C:\Users\Admin\AppData\Local\Temp\Synapse.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1348
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1300
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\BFile_1.vbs"
          4⤵
            PID:1956
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\BFile_2.bat" "
            4⤵
              PID:1756
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe" http://https//www.youtube.com/channel/UC4EA30fMnAwmEYC_CWHhz-g?sub_confirmation=1
              4⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:636
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:636 CREDAT:275457 /prefetch:2
                5⤵
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1552
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
              C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
              4⤵
              • Accesses Microsoft Outlook accounts
              PID:1564
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
              C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
              4⤵
                PID:1124

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • memory/868-62-0x000000001B720000-0x000000001B722000-memory.dmp

                Filesize

                8KB

              • memory/868-54-0x000007FEF50F3000-0x000007FEF50F4000-memory.dmp

                Filesize

                4KB

              • memory/868-55-0x0000000000C70000-0x0000000000EA4000-memory.dmp

                Filesize

                2.2MB

              • memory/1124-80-0x0000000000400000-0x0000000000458000-memory.dmp

                Filesize

                352KB

              • memory/1124-78-0x0000000000400000-0x0000000000458000-memory.dmp

                Filesize

                352KB

              • memory/1300-74-0x0000000000B25000-0x0000000000B36000-memory.dmp

                Filesize

                68KB

              • memory/1300-69-0x00000000747F2000-0x00000000747F4000-memory.dmp

                Filesize

                8KB

              • memory/1300-73-0x0000000000B36000-0x0000000000B37000-memory.dmp

                Filesize

                4KB

              • memory/1300-67-0x00000000747F1000-0x00000000747F2000-memory.dmp

                Filesize

                4KB

              • memory/1300-68-0x0000000000B20000-0x0000000000B21000-memory.dmp

                Filesize

                4KB

              • memory/1348-60-0x00000000009A0000-0x00000000009A1000-memory.dmp

                Filesize

                4KB

              • memory/1348-61-0x00000000747F2000-0x00000000747F4000-memory.dmp

                Filesize

                8KB

              • memory/1348-59-0x00000000747F1000-0x00000000747F2000-memory.dmp

                Filesize

                4KB

              • memory/1348-58-0x0000000075761000-0x0000000075763000-memory.dmp

                Filesize

                8KB

              • memory/1564-75-0x0000000000400000-0x000000000041B000-memory.dmp

                Filesize

                108KB

              • memory/1564-77-0x0000000000400000-0x000000000041B000-memory.dmp

                Filesize

                108KB