Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2024 05:07

General

  • Target

    ef5258f3297f4e3246cb3f8757f2d4eb60fa85b37c2fee221f617da4e406ffe3.exe

  • Size

    1.1MB

  • MD5

    8f0e40b78001a4d851d2c058fd53c99d

  • SHA1

    753c1ebf5f7f1532948ec453c56283ea2dbaba57

  • SHA256

    ef5258f3297f4e3246cb3f8757f2d4eb60fa85b37c2fee221f617da4e406ffe3

  • SHA512

    60726f1319f96836564ebc5aa7b72fceddea65b19f760f0828744b8df38f289d4e392f17cef5064bd68d29cfa04a2a01a68f8423a6a2f3b7788cb5aef91cef46

  • SSDEEP

    24576:D+ycj6GoJ01R3riaKIe0MStS/o6ui2OkhAxx:ay6g0X3jKIeVSc/zuidxx

Malware Config

Signatures

  • 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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef5258f3297f4e3246cb3f8757f2d4eb60fa85b37c2fee221f617da4e406ffe3.exe
    "C:\Users\Admin\AppData\Local\Temp\ef5258f3297f4e3246cb3f8757f2d4eb60fa85b37c2fee221f617da4e406ffe3.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:3084
    • C:\Users\Admin\AppData\Local\Temp\3582-490\ef5258f3297f4e3246cb3f8757f2d4eb60fa85b37c2fee221f617da4e406ffe3.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\ef5258f3297f4e3246cb3f8757f2d4eb60fa85b37c2fee221f617da4e406ffe3.exe"
      2⤵
      • Executes dropped EXE
      PID:1720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    c324431305861add7ddf9186a9221bd9

    SHA1

    61855e1f81606f3cb336f842a1cdd697c7a40912

    SHA256

    f331213f5bcfed2a6dba0dc0c97b5b309c00b013dc47bdb4726d51cf2c274570

    SHA512

    4b532b2bf6eaf3f618bb08b0a6f7af88ce23d76df146b2d007d5a8224ea0463525a86aacc996468cd3a513404aa66cbc516ed27aa9bd142e46492b160d411dc8

  • C:\Users\Admin\AppData\Local\Temp\3582-490\ef5258f3297f4e3246cb3f8757f2d4eb60fa85b37c2fee221f617da4e406ffe3.exe

    Filesize

    1.1MB

    MD5

    cc1c4a5fc8c3681c9ef199788152768a

    SHA1

    7c08ddb3b57cf9a00f02a484e23a4b6c8a6d738d

    SHA256

    0d2567730df546e03b6dd2774368e04864bf7e54cc7b244b67d377b267de3c4d

    SHA512

    911f762bd2f6d01369a33ccf4c956fe23e3e620e2a3fc732a75b2757c51c40649ba06f6d47768034901f361a0502a11cead6f20b7e55c63fcf4eb214595be165

  • memory/3084-95-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3084-96-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3084-98-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB