Analysis

  • max time kernel
    95s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2024 01:30

General

  • Target

    9b3add7228a55468d1468539957fcc7c0b16820aafc36124b68e45e0441b8998.exe

  • Size

    105KB

  • MD5

    c95cef37bae66b87541a77f2d58ed3a9

  • SHA1

    e4f911df804bae79f2141e23362a7746ed831590

  • SHA256

    9b3add7228a55468d1468539957fcc7c0b16820aafc36124b68e45e0441b8998

  • SHA512

    42b1383e59e30c3bf699b52991b53d0f38104049e08eb260d4fa26dbb92e5b4c4eefb366c2f823d20598ff69ed3215c6d38ec13d0de1a92bed4201ad2d7edbe4

  • SSDEEP

    3072:zr8WDrCrvquQjZmrem/HPOWVXl3J9OzNF:PurvOSem/vrV13J9U

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 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9b3add7228a55468d1468539957fcc7c0b16820aafc36124b68e45e0441b8998.exe
    "C:\Users\Admin\AppData\Local\Temp\9b3add7228a55468d1468539957fcc7c0b16820aafc36124b68e45e0441b8998.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:4736
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9b3add7228a55468d1468539957fcc7c0b16820aafc36124b68e45e0441b8998.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9b3add7228a55468d1468539957fcc7c0b16820aafc36124b68e45e0441b8998.exe"
      2⤵
      • Executes dropped EXE
      PID:4860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

    Filesize

    2.4MB

    MD5

    d9e8a1fa55faebd36ed2342fedefbedd

    SHA1

    c25cc7f0035488de9c5df0121a09b5100e1c28e9

    SHA256

    bd7696911d75a9a35dfd125b24cb95003f1e9598592df47fa23a2568986a4a9a

    SHA512

    134644c68bd04536e9ea0a5da6e334d36b1ce8012a061fa6dabd31f85c16a1ac9eee8c40fee3d55f25c4d4edf0672de8ce204e344c800361cbcff092c09d7a33

  • C:\Users\Admin\AppData\Local\Temp\3582-490\9b3add7228a55468d1468539957fcc7c0b16820aafc36124b68e45e0441b8998.exe

    Filesize

    65KB

    MD5

    4f93177181c76bb5f534e4fa89fbd08a

    SHA1

    a51622ccc8a61596ed96a3e12dbbcb6589d1bd9d

    SHA256

    1a87ab84c11297973b31e845e97e78d33bebb516ba08ba517bc7a6ed8011fa39

    SHA512

    ec2b7e69495ff054a97d49a876b9d67d1b733d240353e665b1c8e11bca55783d4d3b693cf97de5844fe6dfebb39e20d1e81c3cdb51f3e4ca48691bef6235957b

  • memory/4736-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4736-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4736-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB