Analysis

  • max time kernel
    149s
  • max time network
    155s
  • 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, 22:51

General

  • Target

    c70ccce5772a16cd6c67d8cc38ecac13.dll

  • Size

    166KB

  • MD5

    c70ccce5772a16cd6c67d8cc38ecac13

  • SHA1

    a2eff9f7d5b93be0b3a3e99ad7a4dd8ef44eb90d

  • SHA256

    c89bb54bffce663a6a4c523da0d5d2eb8a470f969a5b9bb68f737bdf75713a2c

  • SHA512

    49217e51f03a461222413267065c3388398ed7535e1d8df9fe6fcaa43eb6d3a13d1decafb2147c689bec07b342df295d2b384f6592ee9dc5aec532ae6d623293

  • SSDEEP

    1536:d5lTUKCYmCgV5bT/2d1QYemMK6TNXkZXdrBVPjlVRuwz24+5:tTU56gVxj27NemMK6BXEtrB9jlP5Y5

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\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c70ccce5772a16cd6c67d8cc38ecac13.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3924
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\c70ccce5772a16cd6c67d8cc38ecac13.dll
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3016
      • 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:416
        • 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:3904
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:3316
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 204
                6⤵
                • Program crash
                PID:348
            • 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:744
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:744 CREDAT:17410 /prefetch:2
                6⤵
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1988
            • 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:1176
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1176 CREDAT:17410 /prefetch:2
                6⤵
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2608
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3316 -ip 3316
      1⤵
        PID:2268

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{41396247-E18C-11EE-9BAC-CA9969386483}.dat

              Filesize

              5KB

              MD5

              eb0ce3d3ed9b9ec7cacb78b33e5a6b7b

              SHA1

              ab84112466fc077c8870222ad39b5956cae21e0d

              SHA256

              5e98a1f0e5fe9476e2c4602bc1cddc3ac5dbc448d36749e514d337347b9e0444

              SHA512

              6aadea905934dc8c09161cf381f3dd34e985fb039269a070bec506b7f76bb134bd5535a5889c9360d5d3b2f4555cfd585f06a124e4bc48bb9e3e8d801bc29de9

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{4142EA8D-E18C-11EE-9BAC-CA9969386483}.dat

              Filesize

              3KB

              MD5

              abd640fb47652aa9f55ff03687b3296c

              SHA1

              977a67bf3d3a08dbccdde789267b128976ceb978

              SHA256

              5d82ae6370f2c22ac6830f006577e145bcce9e404c771344b089781009d63e0f

              SHA512

              8857df72ae58995a6872839be7b1de44e6adc979eb95a11d2731a1ee09d2d47d5472ed43c81c5775ef8b1241ad075e20a3125805b03dfb12356f4f0840d11d19

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verEF51.tmp

              Filesize

              15KB

              MD5

              1a545d0052b581fbb2ab4c52133846bc

              SHA1

              62f3266a9b9925cd6d98658b92adec673cbe3dd3

              SHA256

              557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

              SHA512

              bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

            • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\KPYHB2C1\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/416-14-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/416-13-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/416-12-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/416-10-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/416-15-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/416-11-0x00000000008B0000-0x00000000008B1000-memory.dmp

              Filesize

              4KB

            • memory/416-8-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/416-6-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/416-4-0x0000000000400000-0x0000000000435000-memory.dmp

              Filesize

              212KB

            • memory/3016-0-0x00000000750A0000-0x00000000750CC000-memory.dmp

              Filesize

              176KB

            • memory/3316-32-0x0000000000400000-0x0000000000401000-memory.dmp

              Filesize

              4KB

            • memory/3316-33-0x00000000001E0000-0x00000000001E1000-memory.dmp

              Filesize

              4KB

            • memory/3904-30-0x00000000776F2000-0x00000000776F3000-memory.dmp

              Filesize

              4KB

            • memory/3904-35-0x0000000000070000-0x0000000000071000-memory.dmp

              Filesize

              4KB

            • memory/3904-34-0x00000000776F2000-0x00000000776F3000-memory.dmp

              Filesize

              4KB

            • memory/3904-28-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/3904-38-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/3904-39-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/3904-29-0x0000000000430000-0x0000000000431000-memory.dmp

              Filesize

              4KB

            • memory/3904-27-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB