Analysis

  • max time kernel
    141s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-02-2025 04:17

General

  • Target

    bb59d96776a7b8db24f207c0b3cf889b071af95fe32b4b35a5ed40e1e9e7300b.exe

  • Size

    926KB

  • MD5

    3515394bcb763cfb5638210e78b27ca8

  • SHA1

    6ab2f6913d140a3e3d0510606b35d58b767d03db

  • SHA256

    bb59d96776a7b8db24f207c0b3cf889b071af95fe32b4b35a5ed40e1e9e7300b

  • SHA512

    9ecdc55ee64ed9ba0bb58fbe98085a044e43c089a76509c719102dae9a20fe7682a5b50d949806ba2a57366949876c179c04551ca73b6fcd5593d341d847ae70

  • SSDEEP

    24576:yPP06TzRfp5d+tjuTNXTyunZvjGGC5SYCL:yPP06nhojuTBuungi

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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb59d96776a7b8db24f207c0b3cf889b071af95fe32b4b35a5ed40e1e9e7300b.exe
    "C:\Users\Admin\AppData\Local\Temp\bb59d96776a7b8db24f207c0b3cf889b071af95fe32b4b35a5ed40e1e9e7300b.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:2952
    • C:\Users\Admin\AppData\Local\Temp\3582-490\bb59d96776a7b8db24f207c0b3cf889b071af95fe32b4b35a5ed40e1e9e7300b.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\bb59d96776a7b8db24f207c0b3cf889b071af95fe32b4b35a5ed40e1e9e7300b.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2688

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\bb59d96776a7b8db24f207c0b3cf889b071af95fe32b4b35a5ed40e1e9e7300b.exe

    Filesize

    885KB

    MD5

    d794088966bf65dc2c79bad66f3c77ce

    SHA1

    861534527e8e3a55e91b18658e65fd048cdb9765

    SHA256

    380cffc6d0e720e25462136c74e57ee6d12224b0f7bd3017fa8599c01fb965f3

    SHA512

    8c97489d806e6fa21f8898929b5e2787fb32ac4307527be41d06b93c6f4c3a691e329c13eccd068d89d12e25e88ca1254bdf694ee93f29a7d9d9dd369941d362

  • memory/2952-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2952-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2952-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB