Analysis

  • max time kernel
    165s
  • max time network
    185s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2023 16:07

General

  • Target

    7b738cb9a61a10ab1fc7041cc6254f3a.exe

  • Size

    92KB

  • MD5

    7b738cb9a61a10ab1fc7041cc6254f3a

  • SHA1

    49c16f17896295f06704f7064b94d328d5a555f9

  • SHA256

    5ef1598a22f4f3ad2cadc8ed0779197cff0b470747395cd4e5c4f16110c9cb39

  • SHA512

    7bb616176dcd3183c6796664c6de74cc633fb4decd0606cad7c0b206025469398376277979e36ffe654bd6c84f6ed010377c155ddafe602cc32a3f846d00ffab

  • SSDEEP

    1536:wVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:AnxwgxgfR/DVG7wBpE

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 11 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 52 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\7b738cb9a61a10ab1fc7041cc6254f3a.exe
    "C:\Users\Admin\AppData\Local\Temp\7b738cb9a61a10ab1fc7041cc6254f3a.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:976
    • 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:2692
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        3⤵
          PID:1388
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 188
            4⤵
            • Program crash
            PID:2236
        • 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:2976
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2976 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4112
        • 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:5116
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5116 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1028
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1388 -ip 1388
      1⤵
        PID:2328

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        92KB

        MD5

        7b738cb9a61a10ab1fc7041cc6254f3a

        SHA1

        49c16f17896295f06704f7064b94d328d5a555f9

        SHA256

        5ef1598a22f4f3ad2cadc8ed0779197cff0b470747395cd4e5c4f16110c9cb39

        SHA512

        7bb616176dcd3183c6796664c6de74cc633fb4decd0606cad7c0b206025469398376277979e36ffe654bd6c84f6ed010377c155ddafe602cc32a3f846d00ffab

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{6621AAF5-ACCB-11EE-8024-CAE9171F1CAB}.dat

        Filesize

        3KB

        MD5

        09336d608a34688871a3f4a876a88641

        SHA1

        a4f60db59a759684c6b152b6368b09a79c7b291c

        SHA256

        09afc80f3182968d073468c531438b1ddf15ac9740a998b3fdf16bb8d8af87f8

        SHA512

        0a8ba3bd44fddcf9268c2c21b045d97444293301514ad3b341f2ce73433b8b91c8a9b92337228f3954f0b2dba54f3f848c276aecb4dca6ac3671d6e4abc3af70

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{6628D1C5-ACCB-11EE-8024-CAE9171F1CAB}.dat

        Filesize

        3KB

        MD5

        652ea12f9907214577e1102a578203ab

        SHA1

        f0713b703435a3348c783079ef9712081eb0e74f

        SHA256

        81d579ce9e3d9cd6da99f368396f3b3b08f7107a0c6d36897dbaac1e1b1e4251

        SHA512

        ea94434cecd4cd3627c9b3a2926b044809a06b4bd0c40b4a528e1815116744f50dfdd8719fc826c25b6146527a548a7a77bdde6a8a8e7b4e8886291605dc4bbc

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver748F.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DV2I56HE\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • memory/976-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/976-0-0x0000000000400000-0x0000000000449000-memory.dmp

        Filesize

        292KB

      • memory/976-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/976-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/976-5-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/976-1-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/976-3-0x00000000008C0000-0x00000000008C1000-memory.dmp

        Filesize

        4KB

      • memory/976-2-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/976-4-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1388-27-0x0000000000160000-0x0000000000161000-memory.dmp

        Filesize

        4KB

      • memory/1388-26-0x0000000000180000-0x0000000000181000-memory.dmp

        Filesize

        4KB

      • memory/2692-28-0x00000000773D2000-0x00000000773D3000-memory.dmp

        Filesize

        4KB

      • memory/2692-29-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/2692-24-0x00000000773D2000-0x00000000773D3000-memory.dmp

        Filesize

        4KB

      • memory/2692-32-0x0000000000400000-0x0000000000449000-memory.dmp

        Filesize

        292KB

      • memory/2692-33-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2692-34-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2692-23-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2692-22-0x0000000000060000-0x0000000000061000-memory.dmp

        Filesize

        4KB