Analysis

  • max time kernel
    94s
  • 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
    06-12-2024 16:36

General

  • Target

    89e404e80904a32bbbe80ddfc72442152c4ba809a35f16caccb093c0d76861fdN.exe

  • Size

    902KB

  • MD5

    0d160056236cdf5920a78c76988f3c30

  • SHA1

    42fce7892045b1f8336159000e67b53270f6642d

  • SHA256

    89e404e80904a32bbbe80ddfc72442152c4ba809a35f16caccb093c0d76861fd

  • SHA512

    544d777d482f62744d0557a2bf5ea0a8b13b82b73ae64b83116fe58a447c8eb5a8c364d3fde46a72bc61e4cb741aebec33953934d2921bf495b86cbe6119b05e

  • SSDEEP

    24576:IhvvVXr99/c2W5wGCC7tZuzhQOZkxJbfv5u3dlAxaKjqbC:SvvVb990d5f7tZuzhQOZkxJbfv5u3dlG

Malware Config

Signatures

  • Detect Neshta payload 5 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\89e404e80904a32bbbe80ddfc72442152c4ba809a35f16caccb093c0d76861fdN.exe
    "C:\Users\Admin\AppData\Local\Temp\89e404e80904a32bbbe80ddfc72442152c4ba809a35f16caccb093c0d76861fdN.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:1088
    • C:\Users\Admin\AppData\Local\Temp\3582-490\89e404e80904a32bbbe80ddfc72442152c4ba809a35f16caccb093c0d76861fdN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\89e404e80904a32bbbe80ddfc72442152c4ba809a35f16caccb093c0d76861fdN.exe"
      2⤵
      • Executes dropped EXE
      PID:2324

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\89e404e80904a32bbbe80ddfc72442152c4ba809a35f16caccb093c0d76861fdN.exe

    Filesize

    861KB

    MD5

    280da0cdc5355db02e376e9a5fdd88b7

    SHA1

    6303610e029f81492f2b04d68f8d9d92fa0da5fa

    SHA256

    775bcdbd9d7df2da3cc80e6945d5056150b22731518ed03097917fd9d3228dad

    SHA512

    6d9501891495c4f040c3dfdc38a1aece3be3df0a4755cfb35d602b9e26d086c3ce46c942de66d416f8c6c9993bb6c37d6133a14a59ad9e0586dd8a2cecb86591

  • memory/1088-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1088-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1088-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1088-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB