Resubmissions

12-01-2025 13:00

250112-p84zwasrhw 10

12-01-2025 12:57

250112-p63c9svrer 10

Analysis

  • max time kernel
    437s
  • max time network
    438s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-01-2025 13:00

General

  • Target

    3798c620106f7bcfb4b270c1f8cadfef5b7aea58440fc85d94e4161d71dabd7eN.exe

  • Size

    96KB

  • MD5

    7e79a837d0d6342d0f0043c66e1d0640

  • SHA1

    c7b196f0ddae16c70c15d429800edb04e42ab06b

  • SHA256

    3798c620106f7bcfb4b270c1f8cadfef5b7aea58440fc85d94e4161d71dabd7e

  • SHA512

    5b7569dbd4f01ea95f879fd643d9e72f139bd41d968713f66f7763ad92b394aacbc5e57bad0d5613640e398619360faeeb44ae9c7e25b7799ac2481effee92bf

  • SSDEEP

    1536:JxqjQ+P04wsmJCJcadB73xzUobbpTiFbPCp5V3:sr85C+SB9Ti+p5V

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\3798c620106f7bcfb4b270c1f8cadfef5b7aea58440fc85d94e4161d71dabd7eN.exe
    C:\Users\Admin\AppData\Local\Temp\3798c620106f7bcfb4b270c1f8cadfef5b7aea58440fc85d94e4161d71dabd7eN.exe cmd /c %SIGILL% "SIGTERM|DELETE|SIGKILL"
    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:3168
    • C:\Users\Admin\AppData\Local\Temp\3582-490\3798c620106f7bcfb4b270c1f8cadfef5b7aea58440fc85d94e4161d71dabd7eN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\3798c620106f7bcfb4b270c1f8cadfef5b7aea58440fc85d94e4161d71dabd7eN.exe" cmd /c %SIGILL% SIGTERM|DELETE|SIGKILL
      2⤵
      • Executes dropped EXE
      PID:960

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\3798c620106f7bcfb4b270c1f8cadfef5b7aea58440fc85d94e4161d71dabd7eN.exe

    Filesize

    56KB

    MD5

    9318023fc9043f94938158a8f020f964

    SHA1

    b0e8848b270b2034ad7f07f4c6158ce3770cbc55

    SHA256

    0985749c7788c9c4d747d7b5cd730ec6873a47b11c1232d83c3ba014c5450b2e

    SHA512

    93133deb99583eba308cf7d9ff22355932b6c56a72f7148d7fe462bd5218f770815cdac3fb87e86ce6d95ee5f47e49f200d60e69162e0b8db1225decdaebef5e

  • memory/3168-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3168-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3168-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB