Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2025 20:04

General

  • Target

    4c0840759ca99f46179ad19bcfbe187adfc6c7d46200b607d46832abb63e2274N.exe

  • Size

    2.8MB

  • MD5

    cde936578f97396803dcd7f6cd39f7c0

  • SHA1

    c9a33262e51676dde01aa89c3b4eba8287726ef4

  • SHA256

    4c0840759ca99f46179ad19bcfbe187adfc6c7d46200b607d46832abb63e2274

  • SHA512

    0286cf13bb5306817b572707a5feaac84f2504b22b7eda0a8d2a153e3c092784fe05625995b5428898fecc515d6a62c965a83e9c3b293307e1ec692d70877d0c

  • SSDEEP

    49152:EjP1oGx8BdRt3H/Nm2EYwfgq9UWrV88J2Erosn7uaszeq6UHb6Xy//vbD:0kDwJPkyasn76QBCnn

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 1 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\4c0840759ca99f46179ad19bcfbe187adfc6c7d46200b607d46832abb63e2274N.exe
    "C:\Users\Admin\AppData\Local\Temp\4c0840759ca99f46179ad19bcfbe187adfc6c7d46200b607d46832abb63e2274N.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
    PID:3972
    • C:\Users\Admin\AppData\Local\Temp\3582-490\4c0840759ca99f46179ad19bcfbe187adfc6c7d46200b607d46832abb63e2274N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\4c0840759ca99f46179ad19bcfbe187adfc6c7d46200b607d46832abb63e2274N.exe"
      2⤵
      • Executes dropped EXE
      PID:3664

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\4c0840759ca99f46179ad19bcfbe187adfc6c7d46200b607d46832abb63e2274N.exe

    Filesize

    2.8MB

    MD5

    d398158f37e7fca7c304f4d3ca5a9462

    SHA1

    c23da0de4f504f3ff92697b9bbf3263f19ae2df9

    SHA256

    d9f8e106b15e196df08c81aa044d5d56e641061bbe35a9f944369ed8b2183131

    SHA512

    be958b2d3895946ed59c06bbe258e1e3442185481ea756959a1a26b2d9b65ed6b7a829f5835f51ea731a141083bdeb24942b487a158cdbbf6399f40131f92d55

  • memory/3972-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3972-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3972-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB