Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-12-2024 12:59

General

  • Target

    05940fd54c028898dc6473ea3f6ae9c9e97f342f54837c69d48f8182d40584d1N.exe

  • Size

    1.3MB

  • MD5

    3847346201c366123ac03e816c593350

  • SHA1

    9a93a7c3347dc87076daf7c4d877102e14fbfc80

  • SHA256

    05940fd54c028898dc6473ea3f6ae9c9e97f342f54837c69d48f8182d40584d1

  • SHA512

    364a17ebb6f125b5637574513d5d0d5bef2789019af24b5c104f7536649845d8b5576bfe5da178401a043831e68c99290a7b2e5a36591befaa13e2c32bf6e9bf

  • SSDEEP

    24576:RvY8cAmBVx6JciGN9wWPgZdL4me+vtNkYEQynSvnzj:RKtiGoWPgZaDYEnOj

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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\05940fd54c028898dc6473ea3f6ae9c9e97f342f54837c69d48f8182d40584d1N.exe
    "C:\Users\Admin\AppData\Local\Temp\05940fd54c028898dc6473ea3f6ae9c9e97f342f54837c69d48f8182d40584d1N.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:1796
    • C:\Users\Admin\AppData\Local\Temp\3582-490\05940fd54c028898dc6473ea3f6ae9c9e97f342f54837c69d48f8182d40584d1N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\05940fd54c028898dc6473ea3f6ae9c9e97f342f54837c69d48f8182d40584d1N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2644
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe
        3⤵
          PID:3496

    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\05940fd54c028898dc6473ea3f6ae9c9e97f342f54837c69d48f8182d40584d1N.exe

      Filesize

      1.2MB

      MD5

      d57518492be63680a54b0018eff82c50

      SHA1

      a4cdbbb6af84e59e15d0407a2f3c232c1e1cfee8

      SHA256

      f2905cb47b5091433d68a1ae784d35eb1290919337a06d93fc75fb4840bf7154

      SHA512

      c39c01522857dde3a279de3c3024164a19afbc8a1b699476f5f3471665ddf0c1c73a855159f2f63fdfe8e5f6d996c0b9a3ac436903bb3a7ee6048311a140f90d

    • memory/1796-94-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1796-95-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1796-97-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB