Analysis

  • max time kernel
    93s
  • 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
    01-01-2025 15:28

General

  • Target

    8909f90305a5e4a1ca582f02a0f97d46ffeb30f9a147f01ffead4e9bcf010c25N.exe

  • Size

    3.3MB

  • MD5

    9598bfed8b36c32a68d0b3328ab71470

  • SHA1

    c556649d7ea8c8ca6a7af1df936a0b55bd5c76de

  • SHA256

    8909f90305a5e4a1ca582f02a0f97d46ffeb30f9a147f01ffead4e9bcf010c25

  • SHA512

    b1a1b3ae5917b764f6959478da609d45c4ae3a0df6e3a2304f1d7d44872bd93b62a60dc658e7603e94cdb066a8da839af69207881ba08e4837d46817bad87275

  • SSDEEP

    24576:WCjxCqNmTBmrDf7I8km0q0WAsci5VRNGaeWXIPufkx8qXgW8fC3fRsI7Nl:9bIe5VRJRIWfb+gWgCv37Nl

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\8909f90305a5e4a1ca582f02a0f97d46ffeb30f9a147f01ffead4e9bcf010c25N.exe
    "C:\Users\Admin\AppData\Local\Temp\8909f90305a5e4a1ca582f02a0f97d46ffeb30f9a147f01ffead4e9bcf010c25N.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:4028
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8909f90305a5e4a1ca582f02a0f97d46ffeb30f9a147f01ffead4e9bcf010c25N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8909f90305a5e4a1ca582f02a0f97d46ffeb30f9a147f01ffead4e9bcf010c25N.exe"
      2⤵
      • Executes dropped EXE
      PID:1528

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\8909f90305a5e4a1ca582f02a0f97d46ffeb30f9a147f01ffead4e9bcf010c25N.exe

    Filesize

    3.3MB

    MD5

    58b8d86631451cfa4128a192767e2f1a

    SHA1

    10039ae648030f26db54ac5952aa2b493afb5612

    SHA256

    dde727915b9b3c3ce6cf92446686873336b0ab404e82f06888c0c68ef9327b93

    SHA512

    02819e4ff0a1057b41f5cda4af2817ebea32012cf8d89ca6c27ee5164b938f1ebaf9bea52d8752871621e1d3ab2433ee5bb8934d5db60983156eaaf491087181

  • memory/4028-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4028-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4028-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB