Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2024 20:54

General

  • Target

    666afa6f77d33ca347b846d7dba0eb7745b61c4c6d22161370fbe0d08e4136abN.exe

  • Size

    4.8MB

  • MD5

    3d3015d6dafb7988b16ae5d9a306c830

  • SHA1

    e969c5a3e5f76d80a878d4a6e51a4f847b05fd59

  • SHA256

    666afa6f77d33ca347b846d7dba0eb7745b61c4c6d22161370fbe0d08e4136ab

  • SHA512

    b8db3c5e039f39932cbb8cd80fcd4fc6af7dfefca5e617dfd89c6734fa15d5a76b882ceee01c88e5486f91be9024ae1e907e4b6973a598fa1b7a5c21da45bb88

  • SSDEEP

    98304:IDESy1BP/OlsLzFmNfW6FJKxxfZA4d8aaNRQkZyZ1ARgD:jSyD8dRQk4Z1ARgD

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 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\666afa6f77d33ca347b846d7dba0eb7745b61c4c6d22161370fbe0d08e4136abN.exe
    "C:\Users\Admin\AppData\Local\Temp\666afa6f77d33ca347b846d7dba0eb7745b61c4c6d22161370fbe0d08e4136abN.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:2332
    • C:\Users\Admin\AppData\Local\Temp\3582-490\666afa6f77d33ca347b846d7dba0eb7745b61c4c6d22161370fbe0d08e4136abN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\666afa6f77d33ca347b846d7dba0eb7745b61c4c6d22161370fbe0d08e4136abN.exe"
      2⤵
      • Executes dropped EXE
      PID:2472

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\666afa6f77d33ca347b846d7dba0eb7745b61c4c6d22161370fbe0d08e4136abN.exe

    Filesize

    4.8MB

    MD5

    8af82ca2d80c80c5113256262a0c6b46

    SHA1

    42f1a635c83b0547253f47082739de362fb79813

    SHA256

    9bbde546e9c790bda7bc8b42a48c4ddbf1d674ec8ee76425b2f71485deb246d2

    SHA512

    fd9ddfb3a2c366df55b1ac87a4ad72196a76f711cb92ea8d6d1c26be986bdf820ddac077cad7e12c209da7e8bd022e238d8fc993ceb3326c3d15ef1d45eb7063

  • memory/2332-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2332-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2332-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB