Analysis

  • max time kernel
    93s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/12/2024, 18:23

General

  • Target

    a21efa0f1bc3d3830562d163ef52b810b8a9080b68c20f121405772456a022a5.exe

  • Size

    86KB

  • MD5

    59b4435ca4e34d6e41c7e8a0cc419338

  • SHA1

    0a64873fc3c7ff624bbde94b690ae0f562c60a80

  • SHA256

    a21efa0f1bc3d3830562d163ef52b810b8a9080b68c20f121405772456a022a5

  • SHA512

    7a71bbce32acbf83f3b54b339594bf90e853e0ce90c60f99538c09d60f2c44b9e333b88b1b69c698a6c38cd545dce60501991c0f4a8a4668739444124ca98ae5

  • SSDEEP

    768:eyxqjQl/EMQt4Oei7RwsHxyP7nbxzOQdJaL7bWvpeUlDmq/oAUSNidddMkQTTWgh:JxqjQ+P04wsmJCdjaMISqAAUSNWdyl7

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.

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\a21efa0f1bc3d3830562d163ef52b810b8a9080b68c20f121405772456a022a5.exe
    "C:\Users\Admin\AppData\Local\Temp\a21efa0f1bc3d3830562d163ef52b810b8a9080b68c20f121405772456a022a5.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
    PID:4600

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        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\a21efa0f1bc3d3830562d163ef52b810b8a9080b68c20f121405772456a022a5.exe

          Filesize

          45KB

          MD5

          edb93ff661630ed07acc156e79835b02

          SHA1

          05fa771f2a25ceaa56f7512ea2beb5991b87572a

          SHA256

          ec8b838259a15e34ac1496d1bd60a903add68798b73a0c4373253a9de4cca545

          SHA512

          1cd4986bbdfe51acca27dfa4bbc688dffbe9586c01f92375fde5b0ad6ac4bb8b24dfd00d5b0862de1233cd3aebbe74b81a4b3f79a55989bdd30c7af8e891473b

        • memory/4600-93-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/4600-94-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/4600-96-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB