Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/03/2024, 20:27

General

  • Target

    c6c9aa2eaf6311e97a9f1459870e26bd.dll

  • Size

    166KB

  • MD5

    c6c9aa2eaf6311e97a9f1459870e26bd

  • SHA1

    19be3c799bb7fcf2bb14212603d3974e54cc22ea

  • SHA256

    7a11f2189eed727ce81578705804e9f20859eba1b8fc4345c18d9cb3b1b9b3b0

  • SHA512

    00c99e842238e926e60f0bababc4a1d65955f5bde2c0a7824ecb4fb4518878d9c16a1246640a8555d88319bafe5773c5ab0a080ce264f5a4456272c6673cdf52

  • SSDEEP

    3072:bTU56gVxj27Ne4L99ZgyXf9MWebpjMGlDCdr9:84L7vBsGd9

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 14 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 55 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\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c6c9aa2eaf6311e97a9f1459870e26bd.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1280
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\c6c9aa2eaf6311e97a9f1459870e26bd.dll
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3388
      • C:\Windows\SysWOW64\regsvr32mgr.exe
        C:\Windows\SysWOW64\regsvr32mgr.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:4872
        • 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:4024
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4652
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 204
                6⤵
                • Program crash
                PID:4824
            • 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:2508
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2508 CREDAT:17410 /prefetch:2
                6⤵
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4628
            • 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:3768
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3768 CREDAT:17410 /prefetch:2
                6⤵
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4852
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4652 -ip 4652
      1⤵
        PID:5028

      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.{2CD80F18-E178-11EE-ABF1-E27D0092C90A}.dat

              Filesize

              5KB

              MD5

              eb411c34ac929bf58bf2acf01f95015a

              SHA1

              9a8791a24c730f884080743b0dbfab632356c814

              SHA256

              9b4e9e8138c10fef8ef85d7d4ecf227979a0d00becee4d6814a7e71027cd8049

              SHA512

              4067254bcf90694b4c6cf3c625b6c315837bd9b644cdf374d3d79e9a3b9d3bea3ef5c906f4258bf1417e2740e34d7fe6feaed6631087ba934e57d310d84a995f

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{2CE19896-E178-11EE-ABF1-E27D0092C90A}.dat

              Filesize

              3KB

              MD5

              280371dcce8b9a9ed4c8dda17d77e249

              SHA1

              04e5b584077903821167fcff1c786006fb52a2e7

              SHA256

              6ad324bd725bd4aaa28919cde40e788219e5ee92efb68c06da89708186ff2985

              SHA512

              eda82c329afe3dc17bf1adea07fd3b57381051e7dbf379e3c230506f5c619023adac684fc993be0c73c616a23a039c04b71712cc9e17bc6da76031dc1a090639

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verBF58.tmp

              Filesize

              15KB

              MD5

              1a545d0052b581fbb2ab4c52133846bc

              SHA1

              62f3266a9b9925cd6d98658b92adec673cbe3dd3

              SHA256

              557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

              SHA512

              bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

            • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\RXB2E2AL\suggestions[1].en-US

              Filesize

              17KB

              MD5

              5a34cb996293fde2cb7a4ac89587393a

              SHA1

              3c96c993500690d1a77873cd62bc639b3a10653f

              SHA256

              c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

              SHA512

              e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

            • C:\Windows\SysWOW64\regsvr32mgr.exe

              Filesize

              96KB

              MD5

              8c51fd9d6daa7b6137634de19a49452c

              SHA1

              db2a11cca434bacad2bf42adeecae38e99cf64f8

              SHA256

              528d190fc376cff62a83391a5ba10ae4ef0c02bedabd0360274ddc2784e11da3

              SHA512

              b93dd6c86d0618798a11dbaa2ded7dac659f6516ca4a87da7297601c27f340fffa4126a852c257654d562529273d8a3f639ec020ab54b879c68226deae549837

            • memory/3388-0-0x00000000749B0000-0x00000000749DC000-memory.dmp

              Filesize

              176KB

            • memory/4024-38-0x0000000077002000-0x0000000077003000-memory.dmp

              Filesize

              4KB

            • memory/4024-22-0x0000000000400000-0x0000000000435000-memory.dmp

              Filesize

              212KB

            • memory/4024-44-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4024-43-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4024-42-0x0000000000400000-0x0000000000435000-memory.dmp

              Filesize

              212KB

            • memory/4024-31-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4024-32-0x0000000000430000-0x0000000000431000-memory.dmp

              Filesize

              4KB

            • memory/4024-33-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4024-30-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4024-35-0x0000000077002000-0x0000000077003000-memory.dmp

              Filesize

              4KB

            • memory/4024-25-0x0000000000400000-0x0000000000435000-memory.dmp

              Filesize

              212KB

            • memory/4024-39-0x0000000000070000-0x0000000000071000-memory.dmp

              Filesize

              4KB

            • memory/4652-37-0x0000000000590000-0x0000000000591000-memory.dmp

              Filesize

              4KB

            • memory/4652-36-0x0000000000570000-0x0000000000571000-memory.dmp

              Filesize

              4KB

            • memory/4872-13-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4872-12-0x00000000008C0000-0x00000000008C1000-memory.dmp

              Filesize

              4KB

            • memory/4872-10-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4872-8-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4872-14-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4872-15-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4872-11-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4872-6-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4872-5-0x0000000000400000-0x0000000000435000-memory.dmp

              Filesize

              212KB