Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/03/2024, 02:07

General

  • Target

    c7687b50f05109f7685880845f9a6ad4.dll

  • Size

    456KB

  • MD5

    c7687b50f05109f7685880845f9a6ad4

  • SHA1

    8696d7e824e0d4f5681126e5304f497abf464f74

  • SHA256

    33f2e8bdb251784b40275d4f3755439d4c914937fc6f335185b501259133e504

  • SHA512

    5588418bfe8bb73f7e0d340e79d72b8347460df072534789e1cca6b018a3faa7977556b95769ed59bc877f5f748e4080bfd47f6ac9a1bc8abf60fb3c8c7b90af

  • SSDEEP

    12288:oV7LMzw56Wx1Dk/qon6xyYhgPFaUVlth9jKajO8FOMr:y1oC3yWgPFv1Ka90U

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 51 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\c7687b50f05109f7685880845f9a6ad4.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2076
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\c7687b50f05109f7685880845f9a6ad4.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:5044
      • 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:4684
        • 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:2936
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:1332
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1332 -s 204
                6⤵
                • Program crash
                PID:2328
            • 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:4816
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4816 CREDAT:17410 /prefetch:2
                6⤵
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4736
            • 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:4492
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4492 CREDAT:17410 /prefetch:2
                6⤵
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4976
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1332 -ip 1332
      1⤵
        PID:4392

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{9A2EE59A-E1A7-11EE-AE4D-4A65E849A069}.dat

              Filesize

              5KB

              MD5

              dab58e31ea2dc983e9e33ff14f64da21

              SHA1

              c24edda1fa009476c4a50bd8212820d16f5bc5e0

              SHA256

              301d62da8d5c812d8bff14bf9d2812ac53870c2b360b88ba03e2b80d2056d89a

              SHA512

              90a941b3846fd825071b073a1fbce9fa2beddfd71d389f91542307124028681726c0d508509778361ecadab669463b9099887d8f1e3ede4df4cf73809c04b544

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{9A33AA8B-E1A7-11EE-AE4D-4A65E849A069}.dat

              Filesize

              5KB

              MD5

              2571991fa211bf32970da947e5d681f5

              SHA1

              8be948fa9b4ef386be88047e1d8b0ea9a749776e

              SHA256

              c554a85a932b37b1dedbf6147b4fa2d3069603371c385216b2de016ddcf77bf6

              SHA512

              85c2c785a8437a1829aa1f9643ffd0bdce902d33f8ffc28f0d8bc69fd783d3479a9cfe5a92cbd19fa8b6871a7211603c3d6fa1ffe7597967d9137142566ecf04

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verB788.tmp

              Filesize

              15KB

              MD5

              1a545d0052b581fbb2ab4c52133846bc

              SHA1

              62f3266a9b9925cd6d98658b92adec673cbe3dd3

              SHA256

              557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

              SHA512

              bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

            • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\2ZG7H8ZF\suggestions[1].en-US

              Filesize

              17KB

              MD5

              5a34cb996293fde2cb7a4ac89587393a

              SHA1

              3c96c993500690d1a77873cd62bc639b3a10653f

              SHA256

              c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

              SHA512

              e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

            • C:\Windows\SysWOW64\rundll32mgr.exe

              Filesize

              60KB

              MD5

              b229d97259dc81a0da33a726a9bd5f92

              SHA1

              5720e02ecfdb2e26730873f1f9f2ff4c9554f463

              SHA256

              36ea4da216ea92b12723415be977e91acb74d06059e0c5925787efaeb450434c

              SHA512

              85e956b5448691b0fa7116f85be83cdd0c847468867d6e57a0801a1ea4a74c3c830867a7f424162986055f576e485a1f9fd52c0108833364113683ba794c8184

            • memory/1332-30-0x00000000004F0000-0x00000000004F1000-memory.dmp

              Filesize

              4KB

            • memory/1332-31-0x00000000004D0000-0x00000000004D1000-memory.dmp

              Filesize

              4KB

            • memory/2936-33-0x0000000077692000-0x0000000077693000-memory.dmp

              Filesize

              4KB

            • memory/2936-32-0x0000000000070000-0x0000000000071000-memory.dmp

              Filesize

              4KB

            • memory/2936-37-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2936-36-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2936-26-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2936-27-0x0000000001FB0000-0x0000000001FB1000-memory.dmp

              Filesize

              4KB

            • memory/2936-28-0x0000000077692000-0x0000000077693000-memory.dmp

              Filesize

              4KB

            • memory/2936-25-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4684-5-0x0000000000400000-0x0000000000422000-memory.dmp

              Filesize

              136KB

            • memory/4684-11-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4684-10-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4684-9-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4684-8-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4684-16-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4684-12-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4684-7-0x0000000002060000-0x0000000002061000-memory.dmp

              Filesize

              4KB

            • memory/4684-6-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/5044-2-0x0000000010000000-0x00000000100A5000-memory.dmp

              Filesize

              660KB