Analysis

  • max time kernel
    94s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2024 01:52

General

  • Target

    1d226b56295ad4b0ab6b908b8e9b2275960de0d607c4f53394519d4187e4ec42N.exe

  • Size

    9.0MB

  • MD5

    ee338d60fbd0d7c40241a8162021fc70

  • SHA1

    1b47304d70c59457317e7ad80a4b7908cb7b6501

  • SHA256

    1d226b56295ad4b0ab6b908b8e9b2275960de0d607c4f53394519d4187e4ec42

  • SHA512

    37079c6d6d3abce0e03f25d5a91cd9b108943b24d2b6b17559e976aaba73de8eaee8f43013571fa167a7ff6ae75f13e6d38f0c99da87220c786eaac4e0ec8128

  • SSDEEP

    98304:rcWWRIkaeXtJngYtpGRF03Adojw3EW9EU12ihD0g0lPiZSEwXDfUJVIYZuT18xO+:wlNb3T8EU6hzEZVDKWqK

Malware Config

Signatures

  • Detect Neshta payload 5 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1d226b56295ad4b0ab6b908b8e9b2275960de0d607c4f53394519d4187e4ec42N.exe
    "C:\Users\Admin\AppData\Local\Temp\1d226b56295ad4b0ab6b908b8e9b2275960de0d607c4f53394519d4187e4ec42N.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3872
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1d226b56295ad4b0ab6b908b8e9b2275960de0d607c4f53394519d4187e4ec42N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1d226b56295ad4b0ab6b908b8e9b2275960de0d607c4f53394519d4187e4ec42N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\1d226b56295ad4b0ab6b908b8e9b2275960de0d607c4f53394519d4187e4ec42N.exe

    Filesize

    8.9MB

    MD5

    f091c207822b5f26fb14420ec1d2da7e

    SHA1

    b7496c7e43a547333e5152be4f3869f705b2e69b

    SHA256

    6143bd64160a8f27c46a3ebf49fa75602e6bbf49c254954f657a0a5dbbcc8f0b

    SHA512

    48a5151d5bc959849edd39d604bbcfc6a6cff5d71cebef9c9ffdfd3693715adefb2ff6a3d291793bf93f60383c5b70c12221ba0708b85fc8b88efe4925525e41

  • memory/3872-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3872-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3872-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3872-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB