Analysis

  • max time kernel
    98s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-12-2024 21:08

General

  • Target

    a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe

  • Size

    1.3MB

  • MD5

    acafe77b1ab047a3e52be83f29189470

  • SHA1

    042257074d11d9f368533fe92f7e28c20770aa5f

  • SHA256

    a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56

  • SHA512

    b4543b9be7be151b75eb89d389188d487bf0438cedd10a3d4cd315499c6dba30e6925bb8348e3905e564bb1ad7234bbecd43e737c1258f9d006b7af0c7c56cf6

  • SSDEEP

    24576:Av/vRrEzNRNRjfOOuCkUylW8xtI98ZKxkEp3W8AD/Dhd+y4lqJ8QdCYDoDNKn01:Av9E5NOOujUyltI98msvD/DX+y4onCYc

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • UPX packed file 5 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 30 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe
    "C:\Users\Admin\AppData\Local\Temp\a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:960
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c start C:\Users\Admin\AppData\Local\Temp\\ÁÖß÷ß÷Æƽâ.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:748
      • C:\Users\Admin\AppData\Local\Temp\ÁÖß÷ß÷Æƽâ.exe
        C:\Users\Admin\AppData\Local\Temp\\ÁÖß÷ß÷Æƽâ.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4348
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c start C:\Users\Admin\AppData\Local\Temp\\h3.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4432
      • C:\Users\Admin\AppData\Local\Temp\h3.exe
        C:\Users\Admin\AppData\Local\Temp\\h3.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2040
        • C:\Users\Admin\AppData\Local\Temp\h3Srv.exe
          C:\Users\Admin\AppData\Local\Temp\h3Srv.exe
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4820
          • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
            "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:2344
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              6⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:4972
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4972 CREDAT:17410 /prefetch:2
                7⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    471B

    MD5

    febff5e5b64433316ee5f116c5c14309

    SHA1

    55a533777edeed0d18304f073d59d5ca1e5c7737

    SHA256

    888dd735b3cf97e714243c7ecf44064128c4a97452b90ebbc66e317a113ef9a4

    SHA512

    cbadeca5bbd2528b4af7ad6d053483adac27db83bfcd8b75312a5aa4b09302f729b67a04bbb9af840cb3abd78ec668b5a6c8746685ba0f15780b5e0ea3dd88d8

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    404B

    MD5

    d3f41af18e76ef6bd97fd0e318b376cc

    SHA1

    9311d8561aaa74a61faf45359c0f37987964172c

    SHA256

    258d85cf1606eefad9582337e3e382fc8491269a1e1a8144f4813abf70c3b933

    SHA512

    b556ce0588dceb66978d2a8f337d58e44f97f3a9993f046129628cac4f8d3472bef4c28730f9f28d63843f69fc74db3bb66f6a71f00bab4509a7f46cee90390a

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VKYZDMA5\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Users\Admin\AppData\Local\Temp\E_4\krnln.fnr

    Filesize

    1.1MB

    MD5

    97c8fe752e354b2945e4c593a87e4a8b

    SHA1

    03ab4c91535ecf14b13e0258f3a7be459a7957f9

    SHA256

    820d8dd49baed0da44d42555ad361d78e068115661dce72ae6578dcdab6baead

    SHA512

    af4492c08d6659d21ebfefe752b0d71210d2542c1788f1d2d9f86a85f01c3dd05eebf61c925e18b5e870aec7e9794e4a7050a04f4c58d90dca93324485690bcc

  • C:\Users\Admin\AppData\Local\Temp\E_4\shell.fne

    Filesize

    56KB

    MD5

    d63851f89c7ad4615565ca300e8b8e27

    SHA1

    1c9a6c1ce94581f85be0e99e2d370384b959578f

    SHA256

    0a6ae72df15cbca21c6af32bc2c13ca876e191008f1078228b3b98add9fc9d8d

    SHA512

    623e9e9beb5d2a9f3a6a75e5fac9dda5b437246fd3b10db4bba680f61bc68aae6714f11a12938b7d22b1c7691f45a75c4406ba06fa901da8ce05e784038970d2

  • C:\Users\Admin\AppData\Local\Temp\h3.exe

    Filesize

    680KB

    MD5

    139ff13b233d72adc79c1e45d25d5bc6

    SHA1

    5af985a43dc26f086fe1a5a6528d9843d11a1f7d

    SHA256

    287d7757d5564992054712f647b1bfae3667d6f2c44e84ffd8f58b3d44f98ac0

    SHA512

    40fac81015febfcdb11d12ec3cdc8c892bfcc1f84314ecf2818897e7eb30ea6cae843ec3b83dd8f2cd858b745a6bc02b957c097028a4f34a46e5c36ed331f596

  • C:\Users\Admin\AppData\Local\Temp\h3Srv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\Local\Temp\ÁÖß÷ß÷Æƽâ.exe

    Filesize

    61KB

    MD5

    b9d48c84ac25ba2f269b1142d538c025

    SHA1

    becfd0ccd3b24ef8fc793cbbd7ea0c27f2c8ce65

    SHA256

    017057c7a3e44318763f00e39bccd91464b7bfd25682f2b5fd837dde1d69b362

    SHA512

    ae37d8e5352c7601d631b7c6110ec3a5434de75a88a22925f8970887792a1787e9311bbec050cd603cc4a50bbd42bf52a29de87371428d48047c091a28d154c9

  • memory/960-9-0x0000000002260000-0x0000000002274000-memory.dmp

    Filesize

    80KB

  • memory/960-14-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/960-0-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2040-38-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/2040-42-0x0000000000400000-0x00000000004AE000-memory.dmp

    Filesize

    696KB

  • memory/2040-19-0x0000000000400000-0x00000000004AE000-memory.dmp

    Filesize

    696KB

  • memory/2344-34-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2344-33-0x00000000005A0000-0x00000000005A1000-memory.dmp

    Filesize

    4KB

  • memory/2344-35-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4820-26-0x0000000000480000-0x000000000048F000-memory.dmp

    Filesize

    60KB

  • memory/4820-27-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4820-24-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB