Analysis

  • max time kernel
    149s
  • max time network
    152s
  • 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 10:41

General

  • Target

    FN CHECKER/FN CHECKER/bin/Fortnite checker.exe

  • Size

    517KB

  • MD5

    4ee4eb93c2b66408bb2b7ed294ce8456

  • SHA1

    0c5e89962612ae857dcdc7ae157c810a23c484a2

  • SHA256

    3ccceb62c17463b89547b63957065b00621bfe611f6c83df1f6cb71c3c3b1c0f

  • SHA512

    a44cc99c858c44ea7ce52328dcacec30e749804da182dcabf6978c1e73f1f5ff90dfb8c20ee1e82a6b2ee791a24289a0694b5e990de09df5d0b1c41d09af8088

  • SSDEEP

    6144:k9EcZu6Te3V8zcL/9QRL5t5mVMZjE4usD6:BuTZ2lQRL5t5mOs

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\FN CHECKER\FN CHECKER\bin\Fortnite checker.exe
    "C:\Users\Admin\AppData\Local\Temp\FN CHECKER\FN CHECKER\bin\Fortnite checker.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:3320
    • C:\Users\Admin\AppData\Local\Temp\3582-490\Fortnite checker.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\Fortnite checker.exe"
      2⤵
      • Executes dropped EXE
      PID:4404

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\Fortnite checker.exe

    Filesize

    476KB

    MD5

    2be46b2eee85470878c9eea822f56ccf

    SHA1

    7638cdcde5199a5575a40972ae08a49572d4798d

    SHA256

    47ddc3b79f14bac59112b388579f182680fb91bec380f6761bbbc4fe9cf5c1b8

    SHA512

    0995295b382fd75a5a8e03b093540059fa8692f37be51a2203763b5a6f9a60eb590ee65f317f92aad1c67e4644dd0069f62f5d8d79ca3c1eff923d1e1fc24f70

  • memory/3320-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3320-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3320-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4404-13-0x00007FFAC2653000-0x00007FFAC2655000-memory.dmp

    Filesize

    8KB

  • memory/4404-12-0x0000000000E10000-0x0000000000E8C000-memory.dmp

    Filesize

    496KB