Analysis

  • max time kernel
    95s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2025 13:18

General

  • Target

    1fde851d2af969ac4ca57846c7d21bb117d44e2089bd82b6a3f4dc593cb4e155N.exe

  • Size

    220KB

  • MD5

    ee26f3ecd5b826d10ed4c394e7671250

  • SHA1

    719cf964c855b4d293b11b351b1ab84c792b6c17

  • SHA256

    1fde851d2af969ac4ca57846c7d21bb117d44e2089bd82b6a3f4dc593cb4e155

  • SHA512

    858504b6bc49ed7a9ac8c737bd36af1d9f84fda12fc02f6f731a81bb58b134d540cb22afd3081240c3dd9cd6a2822e782f59be94775a6e000b9304fc8c5f6a57

  • SSDEEP

    3072:sr85CqJx91Vp0rjsL1TeobnP+tTiLb1HGKVrWXdl+ArhuGytXM+UTY:k9A9jKrjsJioTPkeHPVrWt3QGSXYTY

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\1fde851d2af969ac4ca57846c7d21bb117d44e2089bd82b6a3f4dc593cb4e155N.exe
    "C:\Users\Admin\AppData\Local\Temp\1fde851d2af969ac4ca57846c7d21bb117d44e2089bd82b6a3f4dc593cb4e155N.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:2780
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1fde851d2af969ac4ca57846c7d21bb117d44e2089bd82b6a3f4dc593cb4e155N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1fde851d2af969ac4ca57846c7d21bb117d44e2089bd82b6a3f4dc593cb4e155N.exe"
      2⤵
      • Executes dropped EXE
      PID:4264

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\1fde851d2af969ac4ca57846c7d21bb117d44e2089bd82b6a3f4dc593cb4e155N.exe

    Filesize

    179KB

    MD5

    74f6d739bd64145bd2d9812caaf78359

    SHA1

    c46dd00b0607976616fb44ebdf1c01e131f32e70

    SHA256

    23864c7483f6ad7111598c0188556cc2239b1d28285d6dd1421dd899541abad8

    SHA512

    80167e634d2e7fe29f0bb191c93ad89c3dd3e1b3287ef687091bdf690d22f4dd27b9aa46b32f46894a574c44899716690ba08a5a5400d10808a2c3b861392bfb

  • memory/2780-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2780-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2780-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB