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Analysis

  • max time kernel
    94s
  • 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
    19/11/2024, 16:17

General

  • Target

    681032e44d3bc984481251c103019f4b9472117f9b11f1680a16f58f3acd31d7N.exe

  • Size

    1.1MB

  • MD5

    90de78b92c95d736a8ece8de2b28efa0

  • SHA1

    30dd04b48fae5fd8a1350f3cf47fbcc833df432b

  • SHA256

    681032e44d3bc984481251c103019f4b9472117f9b11f1680a16f58f3acd31d7

  • SHA512

    e38785234270c3f894564cc94d36660a160d76dd1d8d8a4f1cd32ec6fa1c2156dc7b6f6cf138be7af4077fe48c47721811303fe19365c705ff62d72e973c165b

  • SSDEEP

    24576:o+/9A2YCDLq10eyJJe9Dx3qseCYVfuyZWcfwpg4V12qDUifJ4KNX2DHbs7+UA3lH:19A4LqD+66qJ3vNGDHg7vQUu

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 WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\681032e44d3bc984481251c103019f4b9472117f9b11f1680a16f58f3acd31d7N.exe
    "C:\Users\Admin\AppData\Local\Temp\681032e44d3bc984481251c103019f4b9472117f9b11f1680a16f58f3acd31d7N.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:2156
    • C:\Users\Admin\AppData\Local\Temp\3582-490\681032e44d3bc984481251c103019f4b9472117f9b11f1680a16f58f3acd31d7N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\681032e44d3bc984481251c103019f4b9472117f9b11f1680a16f58f3acd31d7N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2888

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\681032e44d3bc984481251c103019f4b9472117f9b11f1680a16f58f3acd31d7N.exe

    Filesize

    1.1MB

    MD5

    b774b9151299d3da4dbb204c1b87fbae

    SHA1

    62ddbe410f086ec462417705cd6f4fc1c05e8271

    SHA256

    e148af39e55602da2309f4b51bb08338dbba16d59622dcd4fa21ade574616780

    SHA512

    70c590d9ae62023748664c7c35dae2f6bc5c80a16f934aa1bbabdd506387814330b4712ed6d945cf3da959eea2900aa713d7153cbe7706abbe76a31d035bdbdf

  • memory/2156-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2156-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2156-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB