Analysis

  • max time kernel
    96s
  • max time network
    111s
  • 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 21:48

General

  • Target

    ae31784116ddab32b1609ce4d71028c45bb62ba0a750baba642270a50f51919cN.exe

  • Size

    710KB

  • MD5

    6487dccf7df9720ab864f07f8e7c2a30

  • SHA1

    f0d70f0beb44442a77427e291d40de1a9292693f

  • SHA256

    ae31784116ddab32b1609ce4d71028c45bb62ba0a750baba642270a50f51919c

  • SHA512

    8a75cce980087a4e15623e4f91534506ce3479d790c8e11cfacfb6a70f4f71e132875173141cf0d7e4b591bab89bc8ee18da38ef4bef147dbc02101e4fe9f803

  • SSDEEP

    12288:oxzRkYnEOrPM37qzHgA6/lZA32gLNNLLAR98oxsu5xzmg:oFRvEOrPM37qzHgA6c32gPMxsu5xz3

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\ae31784116ddab32b1609ce4d71028c45bb62ba0a750baba642270a50f51919cN.exe
    "C:\Users\Admin\AppData\Local\Temp\ae31784116ddab32b1609ce4d71028c45bb62ba0a750baba642270a50f51919cN.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:1048
    • C:\Users\Admin\AppData\Local\Temp\3582-490\ae31784116ddab32b1609ce4d71028c45bb62ba0a750baba642270a50f51919cN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\ae31784116ddab32b1609ce4d71028c45bb62ba0a750baba642270a50f51919cN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3932

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\ae31784116ddab32b1609ce4d71028c45bb62ba0a750baba642270a50f51919cN.exe

    Filesize

    669KB

    MD5

    98dc4f12f6e930a8fa4ee7666ee96aa1

    SHA1

    e552d60a7004bfda655e9149a0ff201988e52087

    SHA256

    781f16906022b234c6c27354d504e3d86f7e4f81434441fe4d6986a14d8680fc

    SHA512

    6bb6ed6cea4a5c1bf88dfdc3ba2d42d5144d9d4b8733e887d115526f899fd7aed675dbaf77c90b76e0c11c93ce27af3ce85e2057de53ce12a9605f7f55644979

  • memory/1048-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1048-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1048-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3932-12-0x00000000005D0000-0x00000000005D1000-memory.dmp

    Filesize

    4KB

  • memory/3932-96-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB