Analysis

  • max time kernel
    37s
  • max time network
    88s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2022 19:53

General

  • Target

    Trojan-Ransom.Win32.Blocker.exe

  • Size

    214KB

  • MD5

    17b08e8e7e92a243d7dc68a2f27dfb73

  • SHA1

    adc73d06e4cfaa2548914c0d44a63bcd26f219ad

  • SHA256

    edf36af2b6f1dba4d4e57f4ce2fbb67693cfb81bd823a9d306f802cf0ea6d084

  • SHA512

    b8a869695d2fcad6aab507815dde500759256af1d1f5df0cefe5a8ab5b1e07fb27481954cb18faa8f7c1e86f20d86332b45f04be5cf6eeaa814a2e758acc7bda

  • SSDEEP

    3072:ctjLKxbA3zrIL701RCawZowcNlnBflHXFo+jIIH8/SkP8yDG:ctjWxbczG4XMoxnBLFIj/my6

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 8 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Launches sc.exe 2 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry key 1 TTPs 4 IoCs
  • Modifies system certificate store 2 TTPs 9 IoCs
  • Runs net.exe
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe
    "C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\svscrypte.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:832
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v Intel(R) /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svscrypte.vbs" /f
        3⤵
        • Adds Run key to start application
        • Modifies registry key
        PID:1236
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v Intel(R) /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svscrypte.vbs" /f
        3⤵
        • Adds Run key to start application
        • Modifies registry key
        PID:1544
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policiees\Explorer\Run /v Intel(R) /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svscrypte.vbs" /f
        3⤵
        • Modifies registry key
        PID:432
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Policiees\Explorer\Run /v Intel(R) /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svscrypte.vbs" /f
        3⤵
        • Modifies registry key
        PID:1960
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore" /v DisableSR /t REG_DWORD /d 1 /f
        3⤵
          PID:1108
        • C:\Windows\SysWOW64\sc.exe
          sc config srservice start= disabled
          3⤵
          • Launches sc.exe
          PID:2044
        • C:\Windows\SysWOW64\sc.exe
          sc config srservice start= Auto
          3⤵
          • Launches sc.exe
          PID:1304
        • C:\Windows\SysWOW64\net.exe
          net stop srservice
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1064
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop srservice
            4⤵
              PID:672
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\RarSFX0\svscrypte.vbs"
          2⤵
          • Blocklisted process makes network request
          • Modifies system certificate store
          PID:1392

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\svscrypte.bat

        Filesize

        1KB

        MD5

        25b68c107acc1a507d81e0ffc53a60c5

        SHA1

        79cf6f1a2e0175dc2a84f55c02b03958dd2ba074

        SHA256

        51cde711442e057adf08e60554e4e1db99dae431216f772e61a3fc544d9ed2fd

        SHA512

        d312295b41cc0fb53f9281c8afea49fa9eb9e2c7bc1075a679626cf6e343b6d306523a2a1d8473b7e89601aea1faf5ba5ca035cacd4ae7310044c4fa916610ed

      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\svscrypte.vbs

        Filesize

        31KB

        MD5

        56f6087b9e1f7b00737d9a2ce88f2a30

        SHA1

        1c5d05fa5e63abfa54161909eff2b44d6ba0f87b

        SHA256

        dafa1695d053b53f4a74b34fde6441094c8775d61d67a2b72eb7267685846343

        SHA512

        90af78fbe2822cc17077d4fd9c8a6be509db33801a613dd0b56a07b182073e7edf28c692a86258bf59dd1d979e6d930c68784bd47e47068c95ac1978029e1730

      • memory/1964-54-0x0000000075281000-0x0000000075283000-memory.dmp

        Filesize

        8KB