Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2024 03:40

General

  • Target

    94f2e772b9de3a10b3950491c550b7c831e6b6e1393ba10f34781802f20c5bb8N.exe

  • Size

    124KB

  • MD5

    3cc57be0fdd8f905cfed9257c9fc3920

  • SHA1

    0658569667ff1d8b5a9036caac31160c438b484f

  • SHA256

    94f2e772b9de3a10b3950491c550b7c831e6b6e1393ba10f34781802f20c5bb8

  • SHA512

    fbc16eb708a3a133be047ed8bdd4a27f6fb15da285372ab1323608c3d28d93facc9be43b4e6f9f9bdd039ce6c78286099200ab7d597b4392b844f71fd16297d5

  • SSDEEP

    1536:JxqjQ+P04wsmJCEsFIMusizMZwnwFRBbwCKSE8SJfTkq6M6S6RxTWGL:sr85CEWosizMZEmJzylp6S6RAGL

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 2 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\94f2e772b9de3a10b3950491c550b7c831e6b6e1393ba10f34781802f20c5bb8N.exe
    "C:\Users\Admin\AppData\Local\Temp\94f2e772b9de3a10b3950491c550b7c831e6b6e1393ba10f34781802f20c5bb8N.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:3824
    • C:\Users\Admin\AppData\Local\Temp\3582-490\94f2e772b9de3a10b3950491c550b7c831e6b6e1393ba10f34781802f20c5bb8N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\94f2e772b9de3a10b3950491c550b7c831e6b6e1393ba10f34781802f20c5bb8N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2904

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\94f2e772b9de3a10b3950491c550b7c831e6b6e1393ba10f34781802f20c5bb8N.exe

    Filesize

    84KB

    MD5

    7448dd5c9860e02ee99f2dccdbc0a43e

    SHA1

    18823bba82a13b258f50d71e403f98d5bb8d577b

    SHA256

    febf1e82dd390045cc00f6a32dc0680120ae3a5d117a8f7f382875379db83968

    SHA512

    4a1238d3952429099d8a46d62423d93de48040b8d42cd9f27490edd5c045e36d855d4c2090cc9d5d0b70d634847481f56b9027cb1147f123107c4a2671b7aa30

  • memory/3824-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3824-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3824-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB