Resubmissions

04/10/2023, 21:26

231004-1akzwsfb7v 9

23/02/2022, 01:55

220223-cchqjshhem 9

Analysis

  • max time kernel
    117s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    23/02/2022, 01:55

General

  • Target

    0001c1409b360fc8e1b6933d20c7bfa42e1f5d7bc1593a5057a96930e0b53488.exe

  • Size

    12.6MB

  • MD5

    e63dc29b24934b64f077291d2eba75f2

  • SHA1

    b1cdd6ccc14f5f65bef59975667d6306a1cd07b3

  • SHA256

    0001c1409b360fc8e1b6933d20c7bfa42e1f5d7bc1593a5057a96930e0b53488

  • SHA512

    b09df1937edc922a2d25bb3f60ac45f289db0a99fb0d0c581da10ff56237c3bd2012f02a28f1afae148dad2f744af86668b2a5e39f09aa286020d8c0221c9213

Malware Config

Signatures

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 9 IoCs
  • Executes dropped EXE 9 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0001c1409b360fc8e1b6933d20c7bfa42e1f5d7bc1593a5057a96930e0b53488.exe
    "C:\Users\Admin\AppData\Local\Temp\0001c1409b360fc8e1b6933d20c7bfa42e1f5d7bc1593a5057a96930e0b53488.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:316
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\asdas.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\asdas.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:524
      • C:\Users\Admin\AppData\Local\Temp\RtkBtManServ.exe
        "C:\Users\Admin\AppData\Local\Temp\RtkBtManServ.exe" ZhXl39BlhP84+Y4kurA8wpehxxqA0X22IMYZ6Vpiqs7LIsqCC4a/AX2b2RVR/YEUkVsAd21s1Zj3Q7+D+wBDqZXHiuUwqD+ulat5YCzOWXvJWtDoU7A9lCKly9ij2EI/e2+S7OW+qFJxtlQeFXgI2TuHiauFjXibHW/+xco2h6U=
        3⤵
        • Executes dropped EXE
        • Modifies system certificate store
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:544
        • C:\Windows\System32\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1768
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c compile.bat
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1700
            • C:\Users\Admin\AppData\Local\Temp\bfsvc.exe
              C:\Users\Admin\AppData\Local\Temp\bfsvc.exe /capture /Filename "C:\Users\Admin\AppData\Local\Temp\capture.png"
              6⤵
              • Executes dropped EXE
              • Suspicious behavior: CmdExeWriteProcessMemorySpam
              PID:908
        • C:\Windows\System32\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1620
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c compile.bat
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:464
            • C:\Users\Admin\AppData\Local\Temp\snuvcdsm.exe
              C:\Users\Admin\AppData\Local\Temp\snuvcdsm.exe /stext "C:\Users\Admin\AppData\Local\Temp\Admin_Passwords.txt"
              6⤵
              • Executes dropped EXE
              • Suspicious behavior: CmdExeWriteProcessMemorySpam
              • Suspicious behavior: EnumeratesProcesses
              PID:984
        • C:\Windows\System32\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1676
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c compile.bat
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1180
            • C:\Users\Admin\AppData\Local\Temp\winhlp32.exe
              C:\Users\Admin\AppData\Local\Temp\winhlp32.exe /stext "C:\Users\Admin\AppData\Local\Temp\Cookies1"
              6⤵
              • Executes dropped EXE
              • Suspicious behavior: CmdExeWriteProcessMemorySpam
              PID:2028
            • C:\Users\Admin\AppData\Local\Temp\splwow64.exe
              C:\Users\Admin\AppData\Local\Temp\splwow64.exe /stext "C:\Users\Admin\AppData\Local\Temp\Cookies2"
              6⤵
              • Executes dropped EXE
              • Suspicious behavior: CmdExeWriteProcessMemorySpam
              PID:1752
            • C:\Users\Admin\AppData\Local\Temp\hh.exe
              C:\Users\Admin\AppData\Local\Temp\hh.exe /stext "C:\Users\Admin\AppData\Local\Temp\Cookies3"
              6⤵
              • Executes dropped EXE
              • Suspicious behavior: CmdExeWriteProcessMemorySpam
              • Suspicious behavior: EnumeratesProcesses
              PID:1728
        • C:\Windows\System32\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1732
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c compile.bat
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1844
            • C:\Users\Admin\AppData\Local\Temp\xwizard.exe
              C:\Users\Admin\AppData\Local\Temp\xwizard.exe /stext "C:\Users\Admin\AppData\Local\Temp\Admin_History.txt"
              6⤵
              • Executes dropped EXE
              • Suspicious behavior: CmdExeWriteProcessMemorySpam
              • Suspicious behavior: EnumeratesProcesses
              PID:1524
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\RtkBtManServ.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:572
          • C:\Windows\system32\choice.exe
            choice /C Y /N /D Y /T 3
            5⤵
              PID:524
      • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sms.exe
        C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sms.exe
        2⤵
        • Executes dropped EXE
        PID:608

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/316-54-0x000007FEFC2B1000-0x000007FEFC2B3000-memory.dmp

      Filesize

      8KB

    • memory/524-57-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

      Filesize

      4KB

    • memory/524-58-0x0000000000A30000-0x0000000000D2C000-memory.dmp

      Filesize

      3.0MB

    • memory/524-59-0x0000000000A42000-0x0000000000A43000-memory.dmp

      Filesize

      4KB

    • memory/524-60-0x0000000004580000-0x0000000004581000-memory.dmp

      Filesize

      4KB

    • memory/544-74-0x0000000000320000-0x0000000000350000-memory.dmp

      Filesize

      192KB

    • memory/544-67-0x000007FEF58A3000-0x000007FEF58A4000-memory.dmp

      Filesize

      4KB

    • memory/544-68-0x0000000000960000-0x0000000000C3A000-memory.dmp

      Filesize

      2.9MB

    • memory/544-69-0x000000001B480000-0x000000001B7C2000-memory.dmp

      Filesize

      3.3MB

    • memory/544-70-0x0000000000140000-0x0000000000146000-memory.dmp

      Filesize

      24KB

    • memory/544-71-0x000000001B2A0000-0x000000001B2A2000-memory.dmp

      Filesize

      8KB

    • memory/544-72-0x00000000006B0000-0x0000000000760000-memory.dmp

      Filesize

      704KB

    • memory/544-79-0x0000000002490000-0x0000000002498000-memory.dmp

      Filesize

      32KB

    • memory/544-75-0x0000000000590000-0x000000000059C000-memory.dmp

      Filesize

      48KB

    • memory/544-76-0x00000000007E0000-0x00000000007FA000-memory.dmp

      Filesize

      104KB

    • memory/544-77-0x0000000000920000-0x0000000000952000-memory.dmp

      Filesize

      200KB

    • memory/544-78-0x000000001B1D0000-0x000000001B272000-memory.dmp

      Filesize

      648KB

    • memory/908-85-0x0000000076451000-0x0000000076453000-memory.dmp

      Filesize

      8KB