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Analysis

  • max time kernel
    127s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/10/2023, 17:32

General

  • Target

    NEAS.f2efb68650fdada3d4c72fc5da52b5f0.exe

  • Size

    66KB

  • MD5

    f2efb68650fdada3d4c72fc5da52b5f0

  • SHA1

    4f505d7490808c6bada69a0dd4aecf319c844b96

  • SHA256

    a0c493a196de7511800b19105e35c5e33365d86a19c07a1b88667821700770bc

  • SHA512

    eef7d3cc187830df3404fd3e0323a495acb7d071c172e0dfabe6f27dd88f5d78816c4173af7cc4dca965a990bd41f635edb4dd667dc4f368156ba57ba19d58d1

  • SSDEEP

    768:nyxqjQl/EMQt4Oei7RwsHxKANM0nDhlzOQdJ5OQdJyw+++:yxqjQ+P04wsZLnDrCTL

Malware Config

Signatures

  • 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.

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.f2efb68650fdada3d4c72fc5da52b5f0.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.f2efb68650fdada3d4c72fc5da52b5f0.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
    PID:3608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe

    Filesize

    9.4MB

    MD5

    124147ede15f97b47224628152110ce2

    SHA1

    4530fee9b1199777693073414b82420a7c88a042

    SHA256

    3e815d583236b9cecd912fcc949a301d1e51b609cbb53a2285d08feea305edcd

    SHA512

    f4c2825380d1bb9ca889d5c5684f13aa0cacb0d6511f6409ca0972a7191195a0175e00c995407848bf09ea03cff05c7395952bf2ffd2af2015b8939f75a8e627

  • C:\Users\Admin\AppData\Local\Temp\3582-490\NEAS.f2efb68650fdada3d4c72fc5da52b5f0.exe

    Filesize

    40KB

    MD5

    9062b6c41baf71f0ac7a1bd286bbd6ce

    SHA1

    001ea46245c6971835273102cd16f3ab32946953

    SHA256

    fc500a659ea971c9c21ae147f08410d5be7a6d41f928d652d1e5826bba64349b

    SHA512

    08aef6a53d66e0cd08e8aea03cc320ea8bf840cabe669bca178a417ede4bf40e61c02d49096fe6e80fc6a3f3099ed9b615beb3ff2aefa1656495e0acad11170c

  • memory/3608-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3608-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3608-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3608-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3608-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3608-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3608-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3608-101-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB