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Analysis

  • max time kernel
    93s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/09/2024, 10:14

General

  • Target

    ebe100770959aa1565f61177e0c693a256ecbe1d639c1e4552032864efb70c10.exe

  • Size

    292KB

  • MD5

    540ce6edb77a6941dcee1d03536a04df

  • SHA1

    3be74dd166444f5b78b3f21206a40bbdd08cc5c8

  • SHA256

    ebe100770959aa1565f61177e0c693a256ecbe1d639c1e4552032864efb70c10

  • SHA512

    acb69ca66bc242016d80ccbb6367d641edd90e6264f1a4f358f1d435c8916acc7af5ca12fc5a58db34dee3e58e4d8d54d23d443ee151f41a5319e53e955b14b0

  • SSDEEP

    6144:0GWajvSsANgXb8MtQXrZ0giO7WNNw1DtPE:1z5XbNtYrCOYufE

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 3 IoCs
  • UPX packed file 8 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 6 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ebe100770959aa1565f61177e0c693a256ecbe1d639c1e4552032864efb70c10.exe
    "C:\Users\Admin\AppData\Local\Temp\ebe100770959aa1565f61177e0c693a256ecbe1d639c1e4552032864efb70c10.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4204
    • C:\Users\Admin\AppData\Local\Temp\ebe100770959aa1565f61177e0c693a256ecbe1d639c1e4552032864efb70c10mgr.exe
      C:\Users\Admin\AppData\Local\Temp\ebe100770959aa1565f61177e0c693a256ecbe1d639c1e4552032864efb70c10mgr.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3696
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 272
        3⤵
        • Program crash
        PID:4712
    • C:\Users\Admin\AppData\Local\Temp\ebe100770959aa1565f61177e0c693a256ecbe1d639c1e4552032864efb70c10Srv.exe
      C:\Users\Admin\AppData\Local\Temp\ebe100770959aa1565f61177e0c693a256ecbe1d639c1e4552032864efb70c10Srv.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2868
      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
        "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4524
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4796
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4796 CREDAT:17410 /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4268
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3696 -ip 3696
    1⤵
      PID:3720

    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

      92263a7b40579a5aa3e1485ae1c154af

      SHA1

      a586a9471059d10b8e36f6a2107a58d847cc613d

      SHA256

      77fb89fead00c3f22b6f498a5ce4cd4b236266dee3318fc8d40187cdaa249c6e

      SHA512

      5f3f751ef29629bd833eec7e9ced83ce102542c6a512be8dcc783f23b184e2a5fe340b052b4cfa7f988eaed22c2788ca287dde91e10875c48b2183b0d4d2a07c

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

      Filesize

      404B

      MD5

      b2d3fe7016532f98eb3bf4bab8174bb4

      SHA1

      7a6c627715a6205d200419cb49983b2b58e68933

      SHA256

      1b85032ad6964b63b70d282969e5fec89ea7a8a01b943a2439dd494bc864e261

      SHA512

      d1ae2c74a1f6e6890cfd66c445705c4866ccb31c72f40f2cb4ccd14f100799b48b02942bda95f9de28df74c06d462a94c27a9b342325f8d6a0064d81dcb67f37

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\NUB8HZ4Z\suggestions[1].en-US

      Filesize

      17KB

      MD5

      5a34cb996293fde2cb7a4ac89587393a

      SHA1

      3c96c993500690d1a77873cd62bc639b3a10653f

      SHA256

      c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

      SHA512

      e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

    • C:\Users\Admin\AppData\Local\Temp\ebe100770959aa1565f61177e0c693a256ecbe1d639c1e4552032864efb70c10Srv.exe

      Filesize

      55KB

      MD5

      ff5e1f27193ce51eec318714ef038bef

      SHA1

      b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

      SHA256

      fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

      SHA512

      c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

    • C:\Users\Admin\AppData\Local\Temp\ebe100770959aa1565f61177e0c693a256ecbe1d639c1e4552032864efb70c10mgr.exe

      Filesize

      105KB

      MD5

      dfb5daabb95dcfad1a5faf9ab1437076

      SHA1

      4a199569a9b52911bee7fb19ab80570cc5ff9ed1

      SHA256

      54282ec29d4993ed6e9972122cfbb70bba4898a21d527bd9e72a166d7ec2fdc0

      SHA512

      5d31c34403ab5f8db4a6d84f2b5579d4ea18673914b626d78e458a648ac20ddd8e342818e807331036d7bb064f596a02b9737acac42fbead29260343a30717e8

    • memory/2868-8-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/2868-11-0x0000000000550000-0x000000000055F000-memory.dmp

      Filesize

      60KB

    • memory/2868-13-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/3696-24-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/3696-5-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/3696-10-0x00000000004A0000-0x00000000004A1000-memory.dmp

      Filesize

      4KB

    • memory/4204-25-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/4204-0-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/4204-26-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/4524-20-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4524-22-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4524-19-0x0000000000590000-0x0000000000591000-memory.dmp

      Filesize

      4KB