Analysis

  • max time kernel
    93s
  • max time network
    148s
  • 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 23:07

General

  • Target

    645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661.exe

  • Size

    901KB

  • MD5

    2f830e249c310338d1a2fc647a6d7197

  • SHA1

    9f35db9e47a234893ba422321f94c2e0dd32697c

  • SHA256

    645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661

  • SHA512

    26165d0771c51cb8f2d8493629dc2c914ff5a94fac5d23cb2af8fd9fae1ed09eb0ef14221e6bb1304f11cf9678173c2599b4329720e627567315fe85d91bfcd7

  • SSDEEP

    12288:m9T+DcQI1M8mmfdLyZYr3H7SicJFwuWGJ9NVJtF5Pgu3ZUZlL86Bd8:QCDcQslLOYKicJ6uJV5PFZUZh86g

Malware Config

Signatures

  • Detect Neshta payload 4 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 WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661.exe
    "C:\Users\Admin\AppData\Local\Temp\645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661.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:4720
    • C:\Users\Admin\AppData\Local\Temp\3582-490\645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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\645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661.exe

    Filesize

    860KB

    MD5

    6c1cd7f354f93c4b57a52753c0ba57b5

    SHA1

    93671873b5331d8da0f293a79412a61976e562e1

    SHA256

    9961b43011e4a512336e7b5cd99b971e26b1e2da63a0b7bd4c3447a2abd7decd

    SHA512

    7736729194b95195681268e58ab77a9b75407d8b4ebac3fbf0595de354b466ce636423bf087689f83e14ee730e1fd27e27521626d2f638cb666ee559f7ea64a1

  • memory/4720-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4720-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4720-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB