Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-01-2025 11:46

General

  • Target

    5cef2046bc3df66fc61fee28bb5d13f16e217f42611344ff5b972c8ee9596694N.exe

  • Size

    179KB

  • MD5

    9f6863ce93541987e2dfc48cd13184c0

  • SHA1

    369b08e5f2f6b0ed1c75596053db97612c1873d8

  • SHA256

    5cef2046bc3df66fc61fee28bb5d13f16e217f42611344ff5b972c8ee9596694

  • SHA512

    55e9a6246fe75875fa3543b6474e603ae0511211391e6c23df54fea32075021961afe76c3d06f08b078e56e1d91b608e78600eafff4aada64e833e5a75e9a575

  • SSDEEP

    3072:sr85C+qz77I0+R60u4dF7TsosehRc5IqZPery17MwNWuFg:k9+qY/PQ5IqZPf1BsuFg

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\5cef2046bc3df66fc61fee28bb5d13f16e217f42611344ff5b972c8ee9596694N.exe
    "C:\Users\Admin\AppData\Local\Temp\5cef2046bc3df66fc61fee28bb5d13f16e217f42611344ff5b972c8ee9596694N.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:1456
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5cef2046bc3df66fc61fee28bb5d13f16e217f42611344ff5b972c8ee9596694N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5cef2046bc3df66fc61fee28bb5d13f16e217f42611344ff5b972c8ee9596694N.exe"
      2⤵
      • Executes dropped EXE
      PID:4652

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\5cef2046bc3df66fc61fee28bb5d13f16e217f42611344ff5b972c8ee9596694N.exe

    Filesize

    138KB

    MD5

    b1a8ec004cafd29655c685ab83a2e5f1

    SHA1

    6957a19dbae151d2c30accfede13b0aa04b549ef

    SHA256

    ae16103f35c158ac85bbcc5835f50369d62c519ab6a3742bc527b0cef71f228e

    SHA512

    069e1ea86976407cebad2984382cddf1c5ef78f9948403529c73d0c4943e22da5d440b94c0eb23b3d5ef106775bb4741650428d1d06e997f8094e1244bf9e8a6

  • memory/1456-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1456-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1456-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB