Analysis

  • max time kernel
    95s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-12-2024 10:42

General

  • Target

    6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77N.exe

  • Size

    1.2MB

  • MD5

    4543fe98357607293f23921e41325c60

  • SHA1

    0a8a0b5f36f2a702ccc8a78b45513bb7c113780a

  • SHA256

    6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77

  • SHA512

    7f5db515b82fcf7ce621b924e0275bff8efa32e40f4022b57ea1cc642809b5c3e8d7a9bb87e463b1b648c0065cc5e93e289cccf11804314544f72910c82c29e9

  • SSDEEP

    24576:yVN4kkKF3hDXq8xeidJLvkU99kkkkJE58dlX3IiAtp3Nq3E/HoQYx96uYxyxS:yT90guMXEdqwHkUj

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\6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77N.exe
    "C:\Users\Admin\AppData\Local\Temp\6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77N.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:2568
    • C:\Users\Admin\AppData\Local\Temp\3582-490\6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3464

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

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\6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77N.exe

    Filesize

    1.1MB

    MD5

    a7415ecc8b83f826913405b227084f24

    SHA1

    eaf43b70268e5c57c673503d8dfc39ac6cc4bf83

    SHA256

    e996c52b6f325072f1e30e521104d4fcafb800debc1eeb73bd7ac56fdb2ad531

    SHA512

    d60adb25c50161ec4cc57cf3f7b9900ab0fbcd6bb5009df1906da7421e9523468a4dfbda6f5580a4f03197b252c1673115f8d622dadc448630d4d398d96aec63

  • memory/2568-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2568-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2568-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3464-12-0x0000000002530000-0x0000000002531000-memory.dmp

    Filesize

    4KB

  • memory/3464-96-0x0000000000400000-0x000000000052B000-memory.dmp

    Filesize

    1.2MB