Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07/05/2024, 02:59

General

  • Target

    55df5179a90de41691dd26553b8264c0_NEAS.exe

  • Size

    287KB

  • MD5

    55df5179a90de41691dd26553b8264c0

  • SHA1

    86093a79408544dedfcb510eca0ec6fd27ff9aaf

  • SHA256

    406443462ef7c000ded1f4d0286e69be56cf48988f1d7f614b456f9037182612

  • SHA512

    4ec163485adc8bdb9416cffa91b3bd3ff3450f0b3835eefeec2585681c4a286a5581ecbf14b4711b2c0517c00726a688c58235ef9d0324e05205f9ae17c299e3

  • SSDEEP

    6144:p2wA/HQR9mgC74LtlgTvoRRcWd6V2NeTKDEeW3JHMRzfSAv:nA/QR9mb4Lt7cWd6VgeTKDEp3JifSo

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55df5179a90de41691dd26553b8264c0_NEAS.exe
    "C:\Users\Admin\AppData\Local\Temp\55df5179a90de41691dd26553b8264c0_NEAS.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2856
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qokpi.exe "C:\Users\Admin\AppData\Local\Temp\55df5179a90de41691dd26553b8264c0_NEAS.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1196
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2348
      • C:\Users\Admin\AppData\Local\Temp\qokpi.exe
        C:\Users\Admin\AppData\Local\Temp\\qokpi.exe "C:\Users\Admin\AppData\Local\Temp\55df5179a90de41691dd26553b8264c0_NEAS.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2108
        • \??\c:\Program Files\lxqxo\wcwiqcbz.exe
          "c:\Program Files\lxqxo\wcwiqcbz.exe" "c:\Program Files\lxqxo\wcwiqcbz.dll",ClassObject C:\Users\Admin\AppData\Local\Temp\qokpi.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:2716

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • \Program Files\lxqxo\wcwiqcbz.dll

          Filesize

          200KB

          MD5

          4cc6f477e5934fdfd31da67c27a0ac96

          SHA1

          f94079343827b1e2705d815ff153fb358d55a95b

          SHA256

          dff181e38176c754a34d981bd1ff684b8216206a1601a2a7c2e10c554ff3065a

          SHA512

          8a61ae77f5b846b504e7355340be9840635307fc2addc63269f6fad7d5aea0e6d528304ba07869a765242c97fb60db0943737bd7a4be43b050d235cf34d6fd57

        • \Program Files\lxqxo\wcwiqcbz.exe

          Filesize

          43KB

          MD5

          51138beea3e2c21ec44d0932c71762a8

          SHA1

          8939cf35447b22dd2c6e6f443446acc1bf986d58

          SHA256

          5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

          SHA512

          794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

        • \Users\Admin\AppData\Local\Temp\qokpi.exe

          Filesize

          287KB

          MD5

          2c1cf11b5013b363da80bb78f105a82b

          SHA1

          aa4c07f6f2f7dfa224ca7959d443a768573278be

          SHA256

          ec40b63574918d40c752d30ad99fd249de0305f5641bccf57a80b575ede48e08

          SHA512

          7474f8342eecd66a03024a3fcbd5882ddd2b594ba78b22a7d61f5412fabb5fae0d162fdac29a5b6804f5cd26d2ca8f883012e3fbd6a8c6bae45e72c81ddc5db4

        • memory/1196-7-0x00000000024C0000-0x000000000257F000-memory.dmp

          Filesize

          764KB

        • memory/2108-18-0x0000000000400000-0x00000000004BEBC6-memory.dmp

          Filesize

          762KB

        • memory/2108-10-0x0000000000400000-0x00000000004BEBC6-memory.dmp

          Filesize

          762KB

        • memory/2108-11-0x0000000000400000-0x00000000004BEBC6-memory.dmp

          Filesize

          762KB

        • memory/2716-25-0x0000000010000000-0x0000000010070000-memory.dmp

          Filesize

          448KB

        • memory/2716-26-0x0000000010000000-0x0000000010070000-memory.dmp

          Filesize

          448KB

        • memory/2716-28-0x0000000010000000-0x0000000010070000-memory.dmp

          Filesize

          448KB

        • memory/2856-4-0x0000000000401000-0x0000000000475000-memory.dmp

          Filesize

          464KB

        • memory/2856-3-0x0000000000400000-0x00000000004BEBC6-memory.dmp

          Filesize

          762KB

        • memory/2856-0-0x0000000000400000-0x00000000004BEBC6-memory.dmp

          Filesize

          762KB

        • memory/2856-1-0x0000000000401000-0x0000000000475000-memory.dmp

          Filesize

          464KB