Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/05/2024, 03:53

General

  • Target

    6034c4f4fd7240dc2f0331a916a43c00_NEAS.exe

  • Size

    248KB

  • MD5

    6034c4f4fd7240dc2f0331a916a43c00

  • SHA1

    bf49b157864df4e65150b9093bf6d957cf864641

  • SHA256

    d701cb5b78ad384ed221a35e2c03313fa8803ce051104a997786b87ff4c32ea2

  • SHA512

    65f85460c629ee29c8252a3cb641023e319450032942c034852189cb5480034585ce0981a5cf95491069df4c8cac00df96184ac40e3c1db47dc02ae1ff69d04f

  • SSDEEP

    6144:6lez2ssftlVN+zBfGrSWm+omDAgQsSygGG2SzA9T2:H6silNoGSJ+omDAdsWGLS8k

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 3 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 4 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6034c4f4fd7240dc2f0331a916a43c00_NEAS.exe
    "C:\Users\Admin\AppData\Local\Temp\6034c4f4fd7240dc2f0331a916a43c00_NEAS.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2436
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\moqygyyci.exe "C:\Users\Admin\AppData\Local\Temp\6034c4f4fd7240dc2f0331a916a43c00_NEAS.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3320
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:4932
      • C:\Users\Admin\AppData\Local\Temp\moqygyyci.exe
        C:\Users\Admin\AppData\Local\Temp\\moqygyyci.exe "C:\Users\Admin\AppData\Local\Temp\6034c4f4fd7240dc2f0331a916a43c00_NEAS.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4636
        • \??\c:\Program Files\fudki\pto.exe
          "c:\Program Files\fudki\pto.exe" "c:\Program Files\fudki\ptoeb.dll",WriteErrorLog C:\Users\Admin\AppData\Local\Temp\moqygyyci.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3504

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Program Files\fudki\pto.exe

          Filesize

          60KB

          MD5

          889b99c52a60dd49227c5e485a016679

          SHA1

          8fa889e456aa646a4d0a4349977430ce5fa5e2d7

          SHA256

          6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

          SHA512

          08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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

          Filesize

          248KB

          MD5

          f7174f19958831c392810746534be5e3

          SHA1

          dbfa6d2153ef7034d58e75b41c06a33bc2282b56

          SHA256

          81f487c89ff4d938f22b53a503788e2a6e8ee66cd3bb8ca92b86f2b9b0029700

          SHA512

          1867fcd4865271a9a72f61c4f2086dee557b352f906beafc7bda560fd5d7be8eb2ba9b7bc64159d7bf7bc8cc395740acc2e243cb0112347ce9e908538aec8049

        • \??\c:\Program Files\fudki\ptoeb.dll

          Filesize

          181KB

          MD5

          99b5167c22f528c05eb2585b087feef9

          SHA1

          46bc6e0c6b67f10b48ceb052d2e4bf8de53af512

          SHA256

          a6ae455f62bfaa8bbcc430846c676408c69733749df63088f3fa7be9e066dc8c

          SHA512

          632fe07761752ba4d5cfe655fe280095203c2eaf816368099a9f663fb1ccc9424bbe60e8905376955cb6e80e9a0ece4ad4a85bef0a31ee7809d86e6490b421e4

        • memory/2436-1-0x0000000000400000-0x000000000047301D-memory.dmp

          Filesize

          460KB

        • memory/3504-19-0x0000000010000000-0x000000001004E000-memory.dmp

          Filesize

          312KB

        • memory/3504-16-0x0000000000F50000-0x0000000000F52000-memory.dmp

          Filesize

          8KB

        • memory/3504-17-0x0000000010000000-0x000000001004E000-memory.dmp

          Filesize

          312KB

        • memory/3504-15-0x0000000010000000-0x000000001004E000-memory.dmp

          Filesize

          312KB

        • memory/3504-13-0x0000000010000000-0x000000001004E000-memory.dmp

          Filesize

          312KB

        • memory/3504-22-0x0000000010000000-0x000000001004E000-memory.dmp

          Filesize

          312KB

        • memory/3504-24-0x0000000010000000-0x000000001004E000-memory.dmp

          Filesize

          312KB

        • memory/3504-30-0x0000000010000000-0x000000001004E000-memory.dmp

          Filesize

          312KB

        • memory/4636-9-0x0000000000400000-0x000000000047301D-memory.dmp

          Filesize

          460KB