Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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 22:55

General

  • Target

    vaultFile17059910345723742940.exe

  • Size

    93KB

  • MD5

    05e08268aba77971c4dd84fb1b0ca597

  • SHA1

    f6bcabdee375200d853d856bc9ff72857f43f246

  • SHA256

    6ba23f3bead65b5bbdccf4a939c6d17ffd45cda860bbd40db97af5a508638cf4

  • SHA512

    df2e00a9567cd4bd4b8b04e16fe74d44cdd6fec82ccc7a091fa93d3e078d437fde34eea3b26808be29d658d9f9cc09179a454b672337d29b201ecc37afeaa1b5

  • SSDEEP

    1536:JxqjQ+P04wsmJCD3hxIrbu6pbTjpant1p0ZMCIIcqFrarvVQm4cnFk:sr85CD6bu6pbTjpant1p0ZMZIcKyvWRH

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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\vaultFile17059910345723742940.exe
    "C:\Users\Admin\AppData\Local\Temp\vaultFile17059910345723742940.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:216
    • C:\Users\Admin\AppData\Local\Temp\3582-490\vaultFile17059910345723742940.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\vaultFile17059910345723742940.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4472

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\vaultFile17059910345723742940.exe

    Filesize

    52KB

    MD5

    25a04c10ac280d47f86fb38fd26fae68

    SHA1

    00a7b21b014bb861e80cd84cb2b0fc2462e507f1

    SHA256

    3a502b36e698eba715fc766d48409317d5c46da50da1b5844913f77a9d02239c

    SHA512

    07da235cbc4fa8fd3bf7d2a221bf8e221b901c166737ad2cab7cb65e00cee002af08c372176386a0bc2f06c40d19a48026e9ea70c75e5bbd2483679316d821d9

  • memory/216-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/216-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/216-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB