Analysis

  • max time kernel
    94s
  • 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
    26-11-2024 11:07

General

  • Target

    6ac9a81fcc7b74a9c2736be70aada9a26a50ee4b77673ac3112fb2e4edd43d83N.exe

  • Size

    425KB

  • MD5

    175a60d81f67f74bec0584d6e24d1500

  • SHA1

    39b030053e101f65b079f51e905d6d87f219c026

  • SHA256

    6ac9a81fcc7b74a9c2736be70aada9a26a50ee4b77673ac3112fb2e4edd43d83

  • SHA512

    5d21571331e3b68ce74bdc95728c5b1b9f49bf6f0a5a0265023fe4d086bd8b712e96d95b49dc0709e0fa4cac6b51a356141666484fe0c50bab3ca5164cd2d6e0

  • SSDEEP

    6144:m9w3LjxN56PUtMyb9fc8ry5anhW5zjKXsyYtyAYuIxvmvRWZo60/:x3LjL56PUrb99nhIz2lYtO+vRdF

Malware Config

Signatures

  • 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\6ac9a81fcc7b74a9c2736be70aada9a26a50ee4b77673ac3112fb2e4edd43d83N.exe
    "C:\Users\Admin\AppData\Local\Temp\6ac9a81fcc7b74a9c2736be70aada9a26a50ee4b77673ac3112fb2e4edd43d83N.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:3456
    • C:\Users\Admin\AppData\Local\Temp\3582-490\6ac9a81fcc7b74a9c2736be70aada9a26a50ee4b77673ac3112fb2e4edd43d83N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\6ac9a81fcc7b74a9c2736be70aada9a26a50ee4b77673ac3112fb2e4edd43d83N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4864

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

    c324431305861add7ddf9186a9221bd9

    SHA1

    61855e1f81606f3cb336f842a1cdd697c7a40912

    SHA256

    f331213f5bcfed2a6dba0dc0c97b5b309c00b013dc47bdb4726d51cf2c274570

    SHA512

    4b532b2bf6eaf3f618bb08b0a6f7af88ce23d76df146b2d007d5a8224ea0463525a86aacc996468cd3a513404aa66cbc516ed27aa9bd142e46492b160d411dc8

  • C:\Users\Admin\AppData\Local\Temp\3582-490\6ac9a81fcc7b74a9c2736be70aada9a26a50ee4b77673ac3112fb2e4edd43d83N.exe

    Filesize

    384KB

    MD5

    44b21d141b5f3f6d0a5327be7491b0a7

    SHA1

    f5708740fdb28a74ac2ed973a8d0bb6698a668f9

    SHA256

    3e57cc1d455a7c33e74124888bff4c73501c8b1993a8c1e896f4d995ec93bc53

    SHA512

    a468bbdff283c602482c5d494a7a304aba639cccf29cb7c9af1779263c331ecdce72ec55737edd00473ffcf59d1d5365a7ef0941040832834ea304a506bcb242

  • memory/3456-95-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3456-96-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3456-97-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3456-99-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB