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Analysis

  • max time kernel
    148s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/11/2022, 07:41

General

  • Target

    cc878688122b40ca6ed03730e319ce5a48e318442423df7505196bba6a4bc6d5.dll

  • Size

    264KB

  • MD5

    45c8b34daa550fde1f82a2acccda5f07

  • SHA1

    fcc639efb6d02a1dea64650fcfd913fd2393a759

  • SHA256

    cc878688122b40ca6ed03730e319ce5a48e318442423df7505196bba6a4bc6d5

  • SHA512

    ac114f6761fd9a2f7693bf9ea75238f9a3e8a7a3e505072f5217eb73d05ae1408825687949bc0335461df4867059c0c5a4f47b732cf81523dcc51b353d815e09

  • SSDEEP

    3072:VdcQ2ZNMSQvbajUTUItjT68+xQUpr/lIylK8ZUaUubSG7cEe0XjQS+JxjwoDjlaF:lATSOjUQK4rtIylKC55IE3XkFjJDhaF

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 11 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\cc878688122b40ca6ed03730e319ce5a48e318442423df7505196bba6a4bc6d5.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3252
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\cc878688122b40ca6ed03730e319ce5a48e318442423df7505196bba6a4bc6d5.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3036
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:4032
        • C:\Program Files (x86)\Microsoft\WaterMark.exe
          "C:\Program Files (x86)\Microsoft\WaterMark.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:5068
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:3472
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3472 -s 204
                6⤵
                • Program crash
                PID:840
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:4360
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4360 CREDAT:17410 /prefetch:2
                6⤵
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3504
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:4624
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4624 CREDAT:17410 /prefetch:2
                6⤵
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:440
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3472 -ip 3472
      1⤵
        PID:2132

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\Microsoft\WaterMark.exe

        Filesize

        112KB

        MD5

        9767edb24505caa3f9615ba0414e44ff

        SHA1

        42c91f4dc19dbad863845d4546731dfd5e6e9c14

        SHA256

        5252232bda9f69119eace43194c74bb666bc32c5ec2012cb8a4f52750a534827

        SHA512

        b9e733958c27537d2af9b933ffff4c2d52e067506b0e9aa2e51d16ef4cfaa28f163675e9b5c970993149ce7d3f5a796b5855bed18ae43d37535c4da4873f8644

      • C:\Program Files (x86)\Microsoft\WaterMark.exe

        Filesize

        112KB

        MD5

        9767edb24505caa3f9615ba0414e44ff

        SHA1

        42c91f4dc19dbad863845d4546731dfd5e6e9c14

        SHA256

        5252232bda9f69119eace43194c74bb666bc32c5ec2012cb8a4f52750a534827

        SHA512

        b9e733958c27537d2af9b933ffff4c2d52e067506b0e9aa2e51d16ef4cfaa28f163675e9b5c970993149ce7d3f5a796b5855bed18ae43d37535c4da4873f8644

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{BAA1867A-70AC-11ED-B696-4A8324823CC0}.dat

        Filesize

        5KB

        MD5

        64e547ae5e8170d41f24e99555652111

        SHA1

        fae241b8ac4f6a3876d6c65d13b30c5393483ed0

        SHA256

        efbcc4cf92748c2bba7d66919058326ffd6da26a1c385a443b80aa120b811da3

        SHA512

        65f67f487df0fddda678d0881fb9aa56f4949fe86804db86c70ee127e9f1ea9ae5c2208e2e48d22055e34780cda23d744c9e7fe8ac343fe0039f0e73380d47af

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{BAAB0C5E-70AC-11ED-B696-4A8324823CC0}.dat

        Filesize

        5KB

        MD5

        e47397274b1363a40c3da38f5f001ca7

        SHA1

        8b7ee632d3531480a06c50b8b059280b11ae1270

        SHA256

        c35815ff188f34a0dc4afc44456bb34267a96cd2ae9bf01560d78661f1c96d63

        SHA512

        40f8aa420c4952a3cd73f647ab929332d6e5b88651cd67122a0b0bd282e04ef085f7d84aef959b7cdda4c6860ba9908b746556499d796938a63b16a0d74f5da4

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        112KB

        MD5

        9767edb24505caa3f9615ba0414e44ff

        SHA1

        42c91f4dc19dbad863845d4546731dfd5e6e9c14

        SHA256

        5252232bda9f69119eace43194c74bb666bc32c5ec2012cb8a4f52750a534827

        SHA512

        b9e733958c27537d2af9b933ffff4c2d52e067506b0e9aa2e51d16ef4cfaa28f163675e9b5c970993149ce7d3f5a796b5855bed18ae43d37535c4da4873f8644

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        112KB

        MD5

        9767edb24505caa3f9615ba0414e44ff

        SHA1

        42c91f4dc19dbad863845d4546731dfd5e6e9c14

        SHA256

        5252232bda9f69119eace43194c74bb666bc32c5ec2012cb8a4f52750a534827

        SHA512

        b9e733958c27537d2af9b933ffff4c2d52e067506b0e9aa2e51d16ef4cfaa28f163675e9b5c970993149ce7d3f5a796b5855bed18ae43d37535c4da4873f8644

      • memory/4032-142-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4032-139-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4032-138-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/5068-153-0x0000000000400000-0x0000000000437000-memory.dmp

        Filesize

        220KB

      • memory/5068-152-0x0000000000400000-0x0000000000437000-memory.dmp

        Filesize

        220KB

      • memory/5068-151-0x0000000000400000-0x0000000000437000-memory.dmp

        Filesize

        220KB

      • memory/5068-150-0x0000000000400000-0x0000000000437000-memory.dmp

        Filesize

        220KB

      • memory/5068-156-0x0000000000400000-0x0000000000437000-memory.dmp

        Filesize

        220KB

      • memory/5068-157-0x0000000000400000-0x0000000000437000-memory.dmp

        Filesize

        220KB

      • memory/5068-158-0x0000000000400000-0x0000000000437000-memory.dmp

        Filesize

        220KB

      • memory/5068-159-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB