Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-12-2024 02:11

General

  • Target

    b48750a258bda2648ed529dbc3b366996f503ee7c4c7aae074836e5211298115.exe

  • Size

    2.9MB

  • MD5

    0d4cfc511d0bf66f2be58e1a8ebabc1f

  • SHA1

    14d7820b71f8d81f6fde697e5dd9277e811fa3ab

  • SHA256

    b48750a258bda2648ed529dbc3b366996f503ee7c4c7aae074836e5211298115

  • SHA512

    24a5730ae2e6323bee349ee388ea624e2782ebcb37ee7b92d307d8fe566631f32a763352d71bcfd0295ce56aa2819618747eb702492bfd78a052904c6b6e7ede

  • SSDEEP

    49152:/zaUYzbh3mbYowZG8GGp913yVUiKsBYHW3TxSKE1MB:/23KziGbGp3EYHWEu

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 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b48750a258bda2648ed529dbc3b366996f503ee7c4c7aae074836e5211298115.exe
    "C:\Users\Admin\AppData\Local\Temp\b48750a258bda2648ed529dbc3b366996f503ee7c4c7aae074836e5211298115.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:4828
    • C:\Users\Admin\AppData\Local\Temp\3582-490\b48750a258bda2648ed529dbc3b366996f503ee7c4c7aae074836e5211298115.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\b48750a258bda2648ed529dbc3b366996f503ee7c4c7aae074836e5211298115.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2316

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

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\b48750a258bda2648ed529dbc3b366996f503ee7c4c7aae074836e5211298115.exe

    Filesize

    2.8MB

    MD5

    fb98f683fe6cebd7305eb9f8d77ce4fd

    SHA1

    08cd1238393d3f9f62d51c62a760354a1efc105f

    SHA256

    e8c2483c705567df00675127669d6ce0d3a57dc9233f76ede3bf3c47f848808d

    SHA512

    8aab347bea02f233117f701666fb5a05f2b8e9517ec9614e60e6d4c732896fe729382bcd0a434adeaf76cc7b3e2044c3da5b53c7490640f33645eb47ad11d818

  • memory/4828-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4828-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4828-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB