Analysis

  • max time kernel
    93s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-11-2024 14:59

General

  • Target

    e38373ce94a980a03ca680db8b8ec8e6898ad07db71363a45d1ce8c68b5bf3c7N.exe

  • Size

    1.0MB

  • MD5

    fdd3cdee83996978f747483478555010

  • SHA1

    5867ac795a9e43f07074a487695a86c42b010aae

  • SHA256

    e38373ce94a980a03ca680db8b8ec8e6898ad07db71363a45d1ce8c68b5bf3c7

  • SHA512

    50fb42ff8f711cc5697810d5fcdff1d7f71ee0f365616132e2f6c11a4dc87b87f4cce230ea684aa14f8bc36907b354bad4a48262414647d2df3ca7bcdce05aae

  • SSDEEP

    24576:k0s3x60zadnawzObJx5fEOed1rAaZ8wBTy7V:k0ujzadnawzObJx5fEOed1kaZlg

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\e38373ce94a980a03ca680db8b8ec8e6898ad07db71363a45d1ce8c68b5bf3c7N.exe
    "C:\Users\Admin\AppData\Local\Temp\e38373ce94a980a03ca680db8b8ec8e6898ad07db71363a45d1ce8c68b5bf3c7N.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:4276
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e38373ce94a980a03ca680db8b8ec8e6898ad07db71363a45d1ce8c68b5bf3c7N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e38373ce94a980a03ca680db8b8ec8e6898ad07db71363a45d1ce8c68b5bf3c7N.exe"
      2⤵
      • Executes dropped EXE
      PID:3612

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\e38373ce94a980a03ca680db8b8ec8e6898ad07db71363a45d1ce8c68b5bf3c7N.exe

    Filesize

    995KB

    MD5

    d3468921ef547e44d7b9eb96ef87b432

    SHA1

    d12e32bfcaf6226e3351f78bf26a7b1cc61667e9

    SHA256

    80e86e94088184b96e6fc7b13fc8b0fa4449218de04d0cff3d8ae7d323ed7308

    SHA512

    a2f3f26b9260edd3988f7624bd89a8eddee307bd423624e5485dff17fcefcf34a6d49752c1e579f2e7824e5d9b024d1e9cd8c919c705cc46bc07bb8d41591b0b

  • memory/4276-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4276-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4276-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB