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Analysis

  • max time kernel
    151s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    21/10/2022, 04:09

General

  • Target

    76b17a0ee47091052bbe9ba3a0ec780c54c927b7f7c6dc5995d3631e7b973afd.exe

  • Size

    267KB

  • MD5

    4a403aedeb9ca02f9f7aba6923161e60

  • SHA1

    cf2a4032ed5e7c141467b8b6c8b915de75309633

  • SHA256

    76b17a0ee47091052bbe9ba3a0ec780c54c927b7f7c6dc5995d3631e7b973afd

  • SHA512

    3706b48ed7bd58402ded18e55b64a81404831e538e55b943cc31b30d5a50e57ba9e4f09af571668bf88efada49b3e07f79a6376adfb4dc43a8035f66e1cbdce2

  • SSDEEP

    6144:XbfO3SlNyTkyhlx0kRujRYO4VYAtHJ3DFLjxIE++/gAxcbibMoS2:LfIST8kk0kMlCPTvXxKXoS2

Score
10/10

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 8 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 22 IoCs

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

  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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 registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\76b17a0ee47091052bbe9ba3a0ec780c54c927b7f7c6dc5995d3631e7b973afd.exe
    "C:\Users\Admin\AppData\Local\Temp\76b17a0ee47091052bbe9ba3a0ec780c54c927b7f7c6dc5995d3631e7b973afd.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\cwHfT.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1368
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Winlogon" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winlogon.exe" /f
        3⤵
        • Adds Run key to start application
        PID:1180
    • C:\Users\Admin\AppData\Roaming\winlogon.exe
      "C:\Users\Admin\AppData\Roaming\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1296
      • C:\Users\Admin\AppData\Roaming\winlogon.exe
        winlogon.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2044
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1320
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • Modifies registry key
            PID:1932
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1680
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • Modifies registry key
            PID:1936
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\winlogon.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winlogon.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1224
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\winlogon.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winlogon.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • Modifies registry key
            PID:1868
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1528
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • Modifies registry key
            PID:2004
      • C:\Users\Admin\AppData\Roaming\winlogon.exe
        C:\Users\Admin\AppData\Roaming\winlogon.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1716

Network

MITRE ATT&CK Enterprise v6

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Downloads

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

    Filesize

    138B

    MD5

    4da6717f2c70f4bd32ad33a227a2ff47

    SHA1

    3d7f7159e1f695bd469287d1ad4ffa0841b407a8

    SHA256

    a12bb2e5d2fb0b3c400ce311fae72995a00b57a97d23e4b9effec47cff189d07

    SHA512

    6765314054ad9bf2164058248f3d3a17775176925abbe4376aec030dca3a5e59be8b9e96139941fec2b2e1a9bff38f87abdb29ea09a299d8ab7e23ecec4083df

  • C:\Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    267KB

    MD5

    1f96e684b1c470aa8dc8c532279d587f

    SHA1

    3876ed609afb607270f5c0886de72e7640790eaa

    SHA256

    46d0ebd009a89dd80d31efba57bf82bfdd1a9b088e22d147faace99885e56c7f

    SHA512

    810ff19e1edabc506a79a670d35cd61e5f9330caf6fc76dd0bf3f35996ac0a39b0779e68610dba8bd96e07b5986378ec24372241a05f3b28e9417319ec9d6a79

  • C:\Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    267KB

    MD5

    1f96e684b1c470aa8dc8c532279d587f

    SHA1

    3876ed609afb607270f5c0886de72e7640790eaa

    SHA256

    46d0ebd009a89dd80d31efba57bf82bfdd1a9b088e22d147faace99885e56c7f

    SHA512

    810ff19e1edabc506a79a670d35cd61e5f9330caf6fc76dd0bf3f35996ac0a39b0779e68610dba8bd96e07b5986378ec24372241a05f3b28e9417319ec9d6a79

  • C:\Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    267KB

    MD5

    1f96e684b1c470aa8dc8c532279d587f

    SHA1

    3876ed609afb607270f5c0886de72e7640790eaa

    SHA256

    46d0ebd009a89dd80d31efba57bf82bfdd1a9b088e22d147faace99885e56c7f

    SHA512

    810ff19e1edabc506a79a670d35cd61e5f9330caf6fc76dd0bf3f35996ac0a39b0779e68610dba8bd96e07b5986378ec24372241a05f3b28e9417319ec9d6a79

  • C:\Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    267KB

    MD5

    1f96e684b1c470aa8dc8c532279d587f

    SHA1

    3876ed609afb607270f5c0886de72e7640790eaa

    SHA256

    46d0ebd009a89dd80d31efba57bf82bfdd1a9b088e22d147faace99885e56c7f

    SHA512

    810ff19e1edabc506a79a670d35cd61e5f9330caf6fc76dd0bf3f35996ac0a39b0779e68610dba8bd96e07b5986378ec24372241a05f3b28e9417319ec9d6a79

  • \Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    267KB

    MD5

    1f96e684b1c470aa8dc8c532279d587f

    SHA1

    3876ed609afb607270f5c0886de72e7640790eaa

    SHA256

    46d0ebd009a89dd80d31efba57bf82bfdd1a9b088e22d147faace99885e56c7f

    SHA512

    810ff19e1edabc506a79a670d35cd61e5f9330caf6fc76dd0bf3f35996ac0a39b0779e68610dba8bd96e07b5986378ec24372241a05f3b28e9417319ec9d6a79

  • \Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    267KB

    MD5

    1f96e684b1c470aa8dc8c532279d587f

    SHA1

    3876ed609afb607270f5c0886de72e7640790eaa

    SHA256

    46d0ebd009a89dd80d31efba57bf82bfdd1a9b088e22d147faace99885e56c7f

    SHA512

    810ff19e1edabc506a79a670d35cd61e5f9330caf6fc76dd0bf3f35996ac0a39b0779e68610dba8bd96e07b5986378ec24372241a05f3b28e9417319ec9d6a79

  • \Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    267KB

    MD5

    1f96e684b1c470aa8dc8c532279d587f

    SHA1

    3876ed609afb607270f5c0886de72e7640790eaa

    SHA256

    46d0ebd009a89dd80d31efba57bf82bfdd1a9b088e22d147faace99885e56c7f

    SHA512

    810ff19e1edabc506a79a670d35cd61e5f9330caf6fc76dd0bf3f35996ac0a39b0779e68610dba8bd96e07b5986378ec24372241a05f3b28e9417319ec9d6a79

  • \Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    267KB

    MD5

    1f96e684b1c470aa8dc8c532279d587f

    SHA1

    3876ed609afb607270f5c0886de72e7640790eaa

    SHA256

    46d0ebd009a89dd80d31efba57bf82bfdd1a9b088e22d147faace99885e56c7f

    SHA512

    810ff19e1edabc506a79a670d35cd61e5f9330caf6fc76dd0bf3f35996ac0a39b0779e68610dba8bd96e07b5986378ec24372241a05f3b28e9417319ec9d6a79

  • \Users\Admin\AppData\Roaming\winlogon.exe

    Filesize

    267KB

    MD5

    1f96e684b1c470aa8dc8c532279d587f

    SHA1

    3876ed609afb607270f5c0886de72e7640790eaa

    SHA256

    46d0ebd009a89dd80d31efba57bf82bfdd1a9b088e22d147faace99885e56c7f

    SHA512

    810ff19e1edabc506a79a670d35cd61e5f9330caf6fc76dd0bf3f35996ac0a39b0779e68610dba8bd96e07b5986378ec24372241a05f3b28e9417319ec9d6a79

  • memory/1296-82-0x0000000000400000-0x000000000057E000-memory.dmp

    Filesize

    1.5MB

  • memory/1296-74-0x0000000000400000-0x000000000057E000-memory.dmp

    Filesize

    1.5MB

  • memory/1716-77-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1716-84-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1716-101-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1716-85-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1976-56-0x0000000000400000-0x000000000057E000-memory.dmp

    Filesize

    1.5MB

  • memory/1976-57-0x00000000754E1000-0x00000000754E3000-memory.dmp

    Filesize

    8KB

  • memory/1976-68-0x0000000000400000-0x000000000057E000-memory.dmp

    Filesize

    1.5MB

  • memory/2044-83-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2044-79-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2044-100-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2044-72-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB