Analysis

  • max time kernel
    94s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-11-2024 00:45

General

  • Target

    76e972c6c2a83f7b8fab1073b1473a77bd58b0f7ec0722e1d44872ab9c6a40e8.exe

  • Size

    2.4MB

  • MD5

    2bdede94bfa8166815d7453b61e40538

  • SHA1

    a3f40f42f4e109abff19263e9cce28035c66b1a9

  • SHA256

    76e972c6c2a83f7b8fab1073b1473a77bd58b0f7ec0722e1d44872ab9c6a40e8

  • SHA512

    d98ad1a702e33889148519fd1c2c4bb860da8bb45dfad1d02a42fcdad13f0be676818f4a79e11c537e5da9af9e9255335474f36b361cd60ca942a65b058c7668

  • SSDEEP

    49152:hxrbTsjXn27FXIp2ZAzzb1qB5iQ3vrBPITLVYcMxcEF:/kXGXIK5ikBAXazxcEF

Malware Config

Signatures

  • Detect Neshta payload 5 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\76e972c6c2a83f7b8fab1073b1473a77bd58b0f7ec0722e1d44872ab9c6a40e8.exe
    "C:\Users\Admin\AppData\Local\Temp\76e972c6c2a83f7b8fab1073b1473a77bd58b0f7ec0722e1d44872ab9c6a40e8.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:2704
    • C:\Users\Admin\AppData\Local\Temp\3582-490\76e972c6c2a83f7b8fab1073b1473a77bd58b0f7ec0722e1d44872ab9c6a40e8.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\76e972c6c2a83f7b8fab1073b1473a77bd58b0f7ec0722e1d44872ab9c6a40e8.exe"
      2⤵
      • Executes dropped EXE
      PID:1648

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\76e972c6c2a83f7b8fab1073b1473a77bd58b0f7ec0722e1d44872ab9c6a40e8.exe

    Filesize

    2.3MB

    MD5

    d873624106561622683e138303972914

    SHA1

    3314533d8e7c78455bb2e5dc788bc3f4b73f4a7f

    SHA256

    cda3d99964b2b6442f54260881e8fee953a3dcad7f13047f3338d8d5dd17c8a2

    SHA512

    aaaf1cd097a05b4fb01d33d4838b7b948ef4883b112e63d3df0612f67e8455c4573d68e4ec393f68d14a5e3dafaeccc1ec8d23802f67f7380132c8127dab71f0

  • memory/1648-11-0x0000000000400000-0x0000000000A2A000-memory.dmp

    Filesize

    6.2MB

  • memory/2704-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2704-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2704-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2704-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB