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Analysis

  • max time kernel
    91s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/01/2025, 22:46

General

  • Target

    vaultFile15128360499749433099.exe

  • Size

    277KB

  • MD5

    d68d344ecad020b93e4c4717039c562c

  • SHA1

    6e262260324736ba81fe664f425d0a65566a98ec

  • SHA256

    2c64e212d3589bc8da9e9f5e7737761c447456b74c47a297642caf507206d046

  • SHA512

    7823c76c43633cc3746c596b7a1fcf41dbd620e4c9affdbcf82cd370e93d3aa93b23b1a10128e0b1faf4d6cc0f46ab2284e5bdb6f1f62606ef362a7a2089a1d6

  • SSDEEP

    6144:k9va4hrp7qgMLMhxQxq0WqzhGOYmdloO/hXk6Q/EX1:n4jqLxqBqVGOYmvXF

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 2 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\vaultFile15128360499749433099.exe
    "C:\Users\Admin\AppData\Local\Temp\vaultFile15128360499749433099.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:3256
    • C:\Users\Admin\AppData\Local\Temp\3582-490\vaultFile15128360499749433099.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\vaultFile15128360499749433099.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2576

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\vaultFile15128360499749433099.exe

    Filesize

    236KB

    MD5

    7177ec9820192b715bcd018cda5ac6b6

    SHA1

    4b00c9aefeaccac0a95db4fc95ec7f3080d4d710

    SHA256

    344f0cec4eec8a56f1ce92d66107ffa49565554b2d92cff3f2563a05180eebb7

    SHA512

    52c86e96b2d39f0d81fbd4863f9e6f1f20ab0622741705c13d21428459395a96cf355d9f1abcac8cd1fcb01a7d16afc8448adad34b7f7047c8cce89e3ecd68bb

  • memory/3256-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3256-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3256-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB