Analysis

  • max time kernel
    93s
  • max time network
    149s
  • 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 23:45

General

  • Target

    6b8c2bdd5a8132a18ff12ced5c25ab4f8763699d475b1101353fcb1ee695ff76.exe

  • Size

    296KB

  • MD5

    5009dbfcae3cba32bf37df11f0e37789

  • SHA1

    46f2e4e120e2046755d34967aad5274245a9c3a6

  • SHA256

    6b8c2bdd5a8132a18ff12ced5c25ab4f8763699d475b1101353fcb1ee695ff76

  • SHA512

    d44cc5aaf982ec6a44789f7140444ad80b88b1511fa310fa8fbe4cf5cf21249b411ba6dd3d1359ac40cc47370b30ca9576a469f33fc85b951a4d6847789ee33c

  • SSDEEP

    6144:Pug3yKlvREQFWDbSGc1e3s+y8n2JG43OIspJKYbqMJi:4SJEQFWnSGc1ei8n8PYb3i

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\6b8c2bdd5a8132a18ff12ced5c25ab4f8763699d475b1101353fcb1ee695ff76.exe
    "C:\Users\Admin\AppData\Local\Temp\6b8c2bdd5a8132a18ff12ced5c25ab4f8763699d475b1101353fcb1ee695ff76.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:1616
    • C:\Users\Admin\AppData\Local\Temp\3582-490\6b8c2bdd5a8132a18ff12ced5c25ab4f8763699d475b1101353fcb1ee695ff76.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\6b8c2bdd5a8132a18ff12ced5c25ab4f8763699d475b1101353fcb1ee695ff76.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3000

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\6b8c2bdd5a8132a18ff12ced5c25ab4f8763699d475b1101353fcb1ee695ff76.exe

    Filesize

    256KB

    MD5

    8326ef6dfd01c4b1752f21d7251cf520

    SHA1

    2d40284349461da337ca9247c85c00ad35a9cf55

    SHA256

    e3b68f2fa2fa47865db265a1cbc40edc9831f7966dfd7f83de4933effb11e942

    SHA512

    06c065c36fa083d99c82ce6dfbdd28a65ed4f1b4891c37d85584227d054fdceff0ec20ccbd84119fcfdb03d6b66dbc1566497c16caa02892435183b9d10f1cc6

  • memory/1616-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1616-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1616-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB