Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-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 10 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 18 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 49 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\76b17a0ee47091052bbe9ba3a0ec780c54c927b7f7c6dc5995d3631e7b973afd.exe
    "C:\Users\Admin\AppData\Local\Temp\76b17a0ee47091052bbe9ba3a0ec780c54c927b7f7c6dc5995d3631e7b973afd.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5020
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MHVQy.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4940
      • 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:2240
    • 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:1924
      • 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:3572
        • 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:4636
          • 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:4560
        • 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:5096
          • 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:692
        • 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:4512
          • 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:4816
        • 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:3088
          • 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:2420
      • 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:2884

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    138B

    MD5

    4da6717f2c70f4bd32ad33a227a2ff47

    SHA1

    3d7f7159e1f695bd469287d1ad4ffa0841b407a8

    SHA256

    a12bb2e5d2fb0b3c400ce311fae72995a00b57a97d23e4b9effec47cff189d07

    SHA512

    6765314054ad9bf2164058248f3d3a17775176925abbe4376aec030dca3a5e59be8b9e96139941fec2b2e1a9bff38f87abdb29ea09a299d8ab7e23ecec4083df

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

    Filesize

    267KB

    MD5

    109020c53570bf56b0c032b9daf26ff9

    SHA1

    0cd525d4f4b6c8686871a300cc90ff7086d9d5f2

    SHA256

    5e5f82e0ecd437008cf56f002a008786066b15996e4646efc916488d7ca766c1

    SHA512

    5c4f4038fb4d34fbd7a73e0253d395abcab7bd0f53701ba5b7363b6f1e354e9b14d42e0ed606fd23330928f9ee0905b42b04c31208d6172340f02da38b119b21

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

    Filesize

    267KB

    MD5

    109020c53570bf56b0c032b9daf26ff9

    SHA1

    0cd525d4f4b6c8686871a300cc90ff7086d9d5f2

    SHA256

    5e5f82e0ecd437008cf56f002a008786066b15996e4646efc916488d7ca766c1

    SHA512

    5c4f4038fb4d34fbd7a73e0253d395abcab7bd0f53701ba5b7363b6f1e354e9b14d42e0ed606fd23330928f9ee0905b42b04c31208d6172340f02da38b119b21

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

    Filesize

    267KB

    MD5

    109020c53570bf56b0c032b9daf26ff9

    SHA1

    0cd525d4f4b6c8686871a300cc90ff7086d9d5f2

    SHA256

    5e5f82e0ecd437008cf56f002a008786066b15996e4646efc916488d7ca766c1

    SHA512

    5c4f4038fb4d34fbd7a73e0253d395abcab7bd0f53701ba5b7363b6f1e354e9b14d42e0ed606fd23330928f9ee0905b42b04c31208d6172340f02da38b119b21

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

    Filesize

    267KB

    MD5

    109020c53570bf56b0c032b9daf26ff9

    SHA1

    0cd525d4f4b6c8686871a300cc90ff7086d9d5f2

    SHA256

    5e5f82e0ecd437008cf56f002a008786066b15996e4646efc916488d7ca766c1

    SHA512

    5c4f4038fb4d34fbd7a73e0253d395abcab7bd0f53701ba5b7363b6f1e354e9b14d42e0ed606fd23330928f9ee0905b42b04c31208d6172340f02da38b119b21

  • memory/1924-153-0x0000000000400000-0x000000000057E000-memory.dmp

    Filesize

    1.5MB

  • memory/1924-163-0x0000000000400000-0x000000000057E000-memory.dmp

    Filesize

    1.5MB

  • memory/2884-154-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2884-172-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2884-159-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2884-161-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3572-145-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3572-149-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3572-155-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3572-173-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3572-148-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/5020-141-0x0000000000400000-0x000000000057E000-memory.dmp

    Filesize

    1.5MB

  • memory/5020-134-0x0000000000400000-0x000000000057E000-memory.dmp

    Filesize

    1.5MB