Analysis

  • max time kernel
    146s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/12/2023, 15:39

General

  • Target

    0421857eaa36c8b74155d7950e709ae6.exe

  • Size

    92KB

  • MD5

    0421857eaa36c8b74155d7950e709ae6

  • SHA1

    e5c75a8679787d64e80605ca7e979b533a7962a5

  • SHA256

    eb09851c234dd55c561d12e70d6eb347e364aa1240d9ee7156fe44188d5b206f

  • SHA512

    3fb3850550bef85cb87078c2bb10aa2a78c592188ee4d691ee3ec88b90df1dcc47b32b13b2da95a301606b3ea588faf5868d8dfceb5a956994054f4161c15484

  • SSDEEP

    1536:EVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:UnxwgxgfR/DVG7wBpE

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 12 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 45 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 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0421857eaa36c8b74155d7950e709ae6.exe
    "C:\Users\Admin\AppData\Local\Temp\0421857eaa36c8b74155d7950e709ae6.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2972
    • C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1592
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        3⤵
          PID:4776
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 208
            4⤵
            • Program crash
            PID:3168
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3448
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3448 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2504
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:404
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:404 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2172
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4776 -ip 4776
      1⤵
        PID:4804

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              92KB

              MD5

              0421857eaa36c8b74155d7950e709ae6

              SHA1

              e5c75a8679787d64e80605ca7e979b533a7962a5

              SHA256

              eb09851c234dd55c561d12e70d6eb347e364aa1240d9ee7156fe44188d5b206f

              SHA512

              3fb3850550bef85cb87078c2bb10aa2a78c592188ee4d691ee3ec88b90df1dcc47b32b13b2da95a301606b3ea588faf5868d8dfceb5a956994054f4161c15484

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{B82490B4-A2A5-11EE-BCD9-DE9D3A49EF0E}.dat

              Filesize

              5KB

              MD5

              d46b46a2f95478fe7153c42104ec7882

              SHA1

              07876b3717b30470231fd437938ab4af587b9115

              SHA256

              fb659b1657ddd3cdec553bb224bb1ac987bf16d3c8b48398eb676ced43051ac8

              SHA512

              7fefff1aaf6422ef4730a3326a1bb5ebfea19b2d1a0b58d7e636342f0b88cd2b6e474935f635903e5bc58de1a13b94bdab20a4cd90437385e67322a483ee51f6

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{B82BB990-A2A5-11EE-BCD9-DE9D3A49EF0E}.dat

              Filesize

              5KB

              MD5

              66721387b8d92b5df12f8bb1308fd73e

              SHA1

              7a375455c158c35f433b75d8c35b52c026b399f3

              SHA256

              a2d1e4f2d6c6614957729ce4f6ddb1897ed785719c68f9cc90dcd1f35d8edeab

              SHA512

              cb4cd5dddec65277c6c3b6e9b1a718c74fc51efecfa4c7cbc868523299e71acdac479ae45df48db5de3eb81a0f803a83a05fd61f59a29913cef1765040fa7d01

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver4EE6.tmp

              Filesize

              15KB

              MD5

              1a545d0052b581fbb2ab4c52133846bc

              SHA1

              62f3266a9b9925cd6d98658b92adec673cbe3dd3

              SHA256

              557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

              SHA512

              bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

            • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\CCM17AA0\suggestions[1].en-US

              Filesize

              17KB

              MD5

              5a34cb996293fde2cb7a4ac89587393a

              SHA1

              3c96c993500690d1a77873cd62bc639b3a10653f

              SHA256

              c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

              SHA512

              e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

            • memory/1592-27-0x0000000077882000-0x0000000077883000-memory.dmp

              Filesize

              4KB

            • memory/1592-31-0x0000000000070000-0x0000000000071000-memory.dmp

              Filesize

              4KB

            • memory/1592-37-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/1592-36-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/1592-35-0x0000000000400000-0x0000000000461000-memory.dmp

              Filesize

              388KB

            • memory/1592-18-0x0000000000400000-0x0000000000461000-memory.dmp

              Filesize

              388KB

            • memory/1592-25-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/1592-32-0x0000000077882000-0x0000000077883000-memory.dmp

              Filesize

              4KB

            • memory/1592-26-0x0000000000060000-0x0000000000061000-memory.dmp

              Filesize

              4KB

            • memory/2972-3-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2972-0-0x0000000000400000-0x0000000000461000-memory.dmp

              Filesize

              388KB

            • memory/2972-6-0x0000000000930000-0x0000000000931000-memory.dmp

              Filesize

              4KB

            • memory/2972-5-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2972-8-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2972-11-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2972-9-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2972-1-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2972-2-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4776-30-0x0000000000210000-0x0000000000211000-memory.dmp

              Filesize

              4KB

            • memory/4776-29-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB