Overview

overview

10

Static

static

10

257a301a79...bb.exe

windows7_x64

10

257a301a79...bb.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    47s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    24-05-2022 01:17

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General

  • Target

    257a301a7923c9aa1d5dd95f72520561db1fe05f4edb7264e5cc9d7dc04543bb.exe

  • Size

    4.4MB

  • MD5

    5461609a3a289e28da6f562a22184bf5

  • SHA1

    33c1cf42136fba41731a41057b3c6dfbbb1e819f

  • SHA256

    257a301a7923c9aa1d5dd95f72520561db1fe05f4edb7264e5cc9d7dc04543bb

  • SHA512

    da04ebbb16731cea30a4833d898fc602db3d80bca6a7c7e272dd0696ac4205a24832c0f0a7404f41c69eac9309abefdb5fd22cf23e2d49439e5588e71389d9e4

Score
10/10
neshtapersistencespyware

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
    persistence
  • Neshta

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

    persistencespywareneshta
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\257a301a7923c9aa1d5dd95f72520561db1fe05f4edb7264e5cc9d7dc04543bb.exe
    "C:\Users\Admin\AppData\Local\Temp\257a301a7923c9aa1d5dd95f72520561db1fe05f4edb7264e5cc9d7dc04543bb.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4476
    • C:\Users\Admin\AppData\Local\Temp\3582-490\257a301a7923c9aa1d5dd95f72520561db1fe05f4edb7264e5cc9d7dc04543bb.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\257a301a7923c9aa1d5dd95f72520561db1fe05f4edb7264e5cc9d7dc04543bb.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1808

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\257a301a7923c9aa1d5dd95f72520561db1fe05f4edb7264e5cc9d7dc04543bb.exe
    Filesize

    1.1MB

    MD5

    43a9f68e624b9d3ba33cc9a58088a820

    SHA1

    99f4e57107e098f4faf9b1432556f9c7c1c39bbc

    SHA256

    9dbc45e603972d77e100f1bdb3ce1e2e5ebb5cf49c113ca1f2c76037f7bc608e

    SHA512

    fd1494a85c1b44daaea7dc8f8e62dc62b2249639dc3fcc3e298b027f6bba91a41415df99f09b99a5995c2f17d772df7cb5de8f26caa73cfc587e06001166058d

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\3582-490\257a301a7923c9aa1d5dd95f72520561db1fe05f4edb7264e5cc9d7dc04543bb.exe
    Filesize

    1.1MB

    MD5

    88fb387a6f94831e503e482019e30bc8

    SHA1

    c748f5fb30763cb2d012b106ac5495aa95936e1f

    SHA256

    b370ffe522371ebf7314609ee9ec9c5dc15105721e38627919781d07e3900dbd

    SHA512

    c038701fd855a16be98d74c17723ccd41ee354f127a02c6f78d32f424b4860d0431dfa7e256195224b766b24537f9400af95a95d32c23dcf2d5a034dc4baabf8

    Download Submit

  • memory/1808-130-0x0000000000000000-mapping.dmp

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