Analysis

  • max time kernel
    94s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-07-2024 13:57

General

  • Target

    bc28e1b202b9330baf171a9569367150N.exe

  • Size

    3.3MB

  • MD5

    bc28e1b202b9330baf171a9569367150

  • SHA1

    bb000c547412f754995bf7a601622476edf7813f

  • SHA256

    d3535ea5e9d80e0aa7dc311d8e970e41e1572ea9c570d4f9be9177c3668782dc

  • SHA512

    ca0ec21cc9227ef9f326b23ae6c23edd2cb90396e2d4f82a3e3b18ffa3dd58130c616824c552459049fc5ffefef47e1944b39e9d2f6390db19a57682e3f1348e

  • SSDEEP

    49152:LKjaJKytrdJtY6vq4MoBdP3cz/cTPf2YwbpQ4HR9C22gEnQCs1LzTUaHHzc9:LLNy4MoBdP3cz/cTHOy4zcQHHzs

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.

  • 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 2 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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc28e1b202b9330baf171a9569367150N.exe
    "C:\Users\Admin\AppData\Local\Temp\bc28e1b202b9330baf171a9569367150N.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:5088
    • C:\Users\Admin\AppData\Local\Temp\3582-490\bc28e1b202b9330baf171a9569367150N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\bc28e1b202b9330baf171a9569367150N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:388

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\bc28e1b202b9330baf171a9569367150N.exe

    Filesize

    3.3MB

    MD5

    bbf34d8eadc06dd5ef2c59fefe36c1fa

    SHA1

    c699c798bef8609ab63778da1d3d0ce6c175984a

    SHA256

    3fdf4c83b2c91b0f816dfcd02580dfd673a015655dada9337bdd463b0d51b1d7

    SHA512

    724580c0c8137dccbbde90a3340ada95a90074126b5ec354d090b403da743eca7d7a3880e2272a37ce2d3bbfeb16c63685d101bf365af487f354735db852f20f

  • memory/5088-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5088-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5088-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB