Analysis

  • max time kernel
    54s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    09-01-2025 23:37

General

  • Target

    4200f43d4395fa048d9f3f6b9f470e93f08d858a44062a90f9d2e502ae42548e.exe

  • Size

    505KB

  • MD5

    88a7f6a2569ebb961e372b0f122252ee

  • SHA1

    25c8a7bbde1892b01e8d11da8273de46627cf696

  • SHA256

    4200f43d4395fa048d9f3f6b9f470e93f08d858a44062a90f9d2e502ae42548e

  • SHA512

    397b7c0449c90861c491d42cd78a9a4891d9211f6da1951d1192429f8968644fc2f1530a36600af66ff5e01cb43fe33f72f877fb4d788a6bf362fd88b66ac4d4

  • SSDEEP

    12288:Glp9Rkgj08/AJaggegYXWm0/yESHOPqlD:GlhkgjRfegtmwSHOPqlD

Malware Config

Signatures

  • Detect Neshta payload 9 IoCs
  • Neshta

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

  • Neshta family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4200f43d4395fa048d9f3f6b9f470e93f08d858a44062a90f9d2e502ae42548e.exe
    "C:\Users\Admin\AppData\Local\Temp\4200f43d4395fa048d9f3f6b9f470e93f08d858a44062a90f9d2e502ae42548e.exe"
    1⤵
    • Loads dropped DLL
    • 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:2736
    • C:\Users\Admin\AppData\Local\Temp\3582-490\4200f43d4395fa048d9f3f6b9f470e93f08d858a44062a90f9d2e502ae42548e.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\4200f43d4395fa048d9f3f6b9f470e93f08d858a44062a90f9d2e502ae42548e.exe"
      2⤵
      • Executes dropped EXE
      PID:2724

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    e0f2257e0ad4b04429c932673ead4884

    SHA1

    352fcc1fe1019cd069ab52b409b31bbd0a08ea9a

    SHA256

    6e11a49479c1d2b35f15901b0700e307712338f343e1c03fcfe715946fab5969

    SHA512

    d77e790e63b1b2307df2ef0bb774bcbfa5cdc716764050dfa055a23449cffa5c6f61759b0819712f3e3be06037cbc3469082ba2b02af990017f28658f0103763

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\4200f43d4395fa048d9f3f6b9f470e93f08d858a44062a90f9d2e502ae42548e.exe

    Filesize

    465KB

    MD5

    a965cb591e82cf233392a713717dbb3b

    SHA1

    be5a014524cbfeb3065bbc476837e9e212d1c9b7

    SHA256

    ddcbf9f16cd54956e6b250194ec21c8c369d2b5e4e1ecc0d24d4eff6590df469

    SHA512

    d6a64fd479380570f5a2ed95d93f529aa34024da7866a6bb2817422945a10f497f5ebfe47d5a7fe2ea7413a77e65c56c8015cd133fea3a82e6fe9bad5b35cba8

  • memory/2736-0-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/2736-83-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/2736-84-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/2736-85-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/2736-86-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/2736-87-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/2736-88-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/2736-91-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB