Analysis

  • max time kernel
    96s
  • 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
    24-11-2024 01:03

General

  • Target

    79a3be86fad662d04a4695b873e4ebf3eb1585c9934a48100fe1c56883915a03N.exe

  • Size

    1.1MB

  • MD5

    cffd820be5a5694da10a0420a0ed2450

  • SHA1

    b1f04f2e3cecad02423f44f6129c118cd788c1f6

  • SHA256

    79a3be86fad662d04a4695b873e4ebf3eb1585c9934a48100fe1c56883915a03

  • SHA512

    fde4eba792ca8d98200a426e6df630ce2ed2dc59ac69ba059092aabf4c60781b6727ff25d5a53ea0c5236406bb219db2588aa56a52ff7f0297f22b78d9f32c8b

  • SSDEEP

    12288:dd55yKZY1GuTsQwVIdeclxZdzkZhUygrVLT5Bfg1BFVapkOEEWpRAZyy:dlpuGIBTZdzo6rVBBfgzFVQkOXWgZl

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
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\79a3be86fad662d04a4695b873e4ebf3eb1585c9934a48100fe1c56883915a03N.exe
    "C:\Users\Admin\AppData\Local\Temp\79a3be86fad662d04a4695b873e4ebf3eb1585c9934a48100fe1c56883915a03N.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:808
    • C:\Users\Admin\AppData\Local\Temp\3582-490\79a3be86fad662d04a4695b873e4ebf3eb1585c9934a48100fe1c56883915a03N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\79a3be86fad662d04a4695b873e4ebf3eb1585c9934a48100fe1c56883915a03N.exe"
      2⤵
      • Executes dropped EXE
      PID:1516

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\79a3be86fad662d04a4695b873e4ebf3eb1585c9934a48100fe1c56883915a03N.exe

    Filesize

    1.0MB

    MD5

    d792eb59b0fb3f5e6c36ea20829cc838

    SHA1

    1a33fd5ddd76c500bc8b06b5c68e4e52e84914ef

    SHA256

    9232ece741e0c62d3f2ca8879eea9573e4ebb01ad068f8f078494596f3a251b2

    SHA512

    a3176be94cea0d52a8e9df56ec9c96d5c2d9c9eecf3e5445834e15f0ee80bcd653f8a5d868f823f92cb432963add0e616bb50bb9fb60c914b8ab88515ff12fc2

  • memory/808-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/808-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/808-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB