Analysis

  • max time kernel
    95s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2024 18:55

General

  • Target

    administrator.exe

  • Size

    3.9MB

  • MD5

    c1e81b35092d292bf50994180c9e7bbd

  • SHA1

    172ea8cbf2c7dee75ac0f82229057569cb93f136

  • SHA256

    bcce7fb96ddfa065f87ca0b5a50248c5ab4152046bed77762e51a11bff75401d

  • SHA512

    93a757c6d49f377e82dd9c0b9a7160b68a566f0e54d21781f8223113725a8fb4cffa5a27eb63f6f72cc450053d216878a7eb550bdfec7d4a8f5d7c7a622e7832

  • SSDEEP

    24576:b+qzFuNtLC8xl7EDdLtrXzieFq5RQNRyk59yjtzMi1feBOWaJNBPsaIGgJDF7mCy:KiFolBcLtLGeFq5RQNp5ESiHyJDFatUS

Malware Config

Signatures

  • Detect Neshta payload 7 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\administrator.exe
    "C:\Users\Admin\AppData\Local\Temp\administrator.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:4992
    • C:\Users\Admin\AppData\Local\Temp\3582-490\administrator.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\administrator.exe"
      2⤵
      • Executes dropped EXE
      PID:4748

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

    a40427e3788637e741fb69ea8d76cd52

    SHA1

    f8c8c7ec493e32a7573d90ce400fccd79fc98f31

    SHA256

    18dcc8fae245869d02b7db0edbe22ec57a30bdd51a64090452118a79ba194052

    SHA512

    e6b688d4ad0506c74db323b50a2588472f45e66da2a3456450aea96d93882b13662f8b3bbed7773180f5bec851a31d2e45262ecb9283b425c60c8caa06d56ca2

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

    Filesize

    3.8MB

    MD5

    637393a357832e97e0380a5ebed4b3c5

    SHA1

    0b9795389bfb46764d3cc12590d9970a2d19fe30

    SHA256

    d4177f4b1b409a1882280a10387996d345cf53a98c7c07cd8fc9d069b84dddc7

    SHA512

    a3af4881ba89b77eabda2feebb7fcbc818815ca0a0ad924d9ae1c6898c15d00d52a4f226c588bdaceae2d6afda14602cb1bc3d0002bc5af2e524d651988fd1ad

  • memory/4992-0-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/4992-93-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/4992-94-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/4992-95-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/4992-96-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/4992-99-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB