Analysis

  • max time kernel
    93s
  • 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
    07-01-2025 05:47

General

  • Target

    84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3N.exe

  • Size

    146KB

  • MD5

    1d7939f869ada3775c93ac247b80f400

  • SHA1

    d9f8e860b17d4e6279f8dd528b676122f0649eed

  • SHA256

    84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3

  • SHA512

    eed84a33a25d08f2238e7e992f5d8d8a1b835abf346d58dd6aba4339697462c5b19c88ba23414e4cfd6742b9d69d4b5b864eebe019d8c23ffe78979397badb2e

  • SSDEEP

    3072:sr85CkkbAYn2GgYlBYN2fHYTo+NXt8wDSRUTT:k9xbAMpgY3gTb8DRUTT

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\84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3N.exe
    "C:\Users\Admin\AppData\Local\Temp\84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3N.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:5036
    • C:\Users\Admin\AppData\Local\Temp\3582-490\84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3N.exe"
      2⤵
      • Executes dropped EXE
      PID:2080

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\84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3N.exe

    Filesize

    105KB

    MD5

    2b7a296efdebd5e062776b1ecd94460b

    SHA1

    ae6505fc60217c6d7bbf70ba929e9c39ace46e9e

    SHA256

    8f1e6d342268b9fdd0a207fbf158bfe454d9de5aeb61f0e5a1f1217803a0022d

    SHA512

    2f5e852b3c44ca7a15994461ce1a00d627339d1642314780d6f23fce70d25127dad30336eff9c59b102cc77106d05868dc4502005afe2f01c1ac755c7859430d

  • memory/5036-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5036-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5036-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB