Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-10-2024 15:09

General

  • Target

    b78085c3528c17a898f343ba0cad2cd241658ddbf081e86e5e53ecf8972a9140.exe

  • Size

    5.3MB

  • MD5

    56e7191cbf9f080c86c5b3d04e37eaa0

  • SHA1

    cc894fe93cc988bce99aae6d67acb13571604962

  • SHA256

    b78085c3528c17a898f343ba0cad2cd241658ddbf081e86e5e53ecf8972a9140

  • SHA512

    877c7355fcdf556df026eb780d9d9787c8a7329ba90da10edc960b143825d06ad0fe8ace608106cdf32a0bb5ac5233100940b33e7e552390bc636e39d6219370

  • SSDEEP

    98304:DcFdYcc8M9AE4MaqYWx/4c5UwVlxw0UVRuGXNRp45RK0wtIFC7Vjwiz6:DcLYcp/E4oR94c5tK0UVDuC0wtIFC7Jm

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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • 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 3 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 behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b78085c3528c17a898f343ba0cad2cd241658ddbf081e86e5e53ecf8972a9140.exe
    "C:\Users\Admin\AppData\Local\Temp\b78085c3528c17a898f343ba0cad2cd241658ddbf081e86e5e53ecf8972a9140.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:1600
    • C:\Users\Admin\AppData\Local\Temp\3582-490\b78085c3528c17a898f343ba0cad2cd241658ddbf081e86e5e53ecf8972a9140.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\b78085c3528c17a898f343ba0cad2cd241658ddbf081e86e5e53ecf8972a9140.exe"
      2⤵
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1796
      • C:\Users\Admin\AppData\Local\Temp\3582-490\b78085c3528c17a898f343ba0cad2cd241658ddbf081e86e5e53ecf8972a9140.exe
        C:\Users\Admin\AppData\Local\Temp\3582-490\b78085c3528c17a898f343ba0cad2cd241658ddbf081e86e5e53ecf8972a9140.exe --crash-handler --database=C:\Users\Admin\AppData\Local\Google\GoogleUpdater\131.0.6776.0\Crashpad --url=https://clients2.google.com/cr/report --annotation=prod=Update4 --annotation=ver=131.0.6776.0 --attachment=C:\Users\Admin\AppData\Local\Google\GoogleUpdater\updater.log --initial-client-data=0x280,0x284,0x288,0x25c,0x28c,0x1376290,0x137629c,0x13762a8
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4536

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\Google\GoogleUpdater\updater.log

    Filesize

    1KB

    MD5

    9093bc5d6e698850d5044f806f14cb4a

    SHA1

    a473a53ebdc673f04d7bec0957cef6e4cd61c2d7

    SHA256

    59e04a734ce2332efeb1a78cfd2c2a1fd3b88ada589052816476e62d292354b4

    SHA512

    8c2dfcf430549492105fd6917faf4cd465520a51a7a732b4f9bcb939ea82108df016f499199f2b4814a554fea07f2d486e81923715cd0fa811bb37121db54f33

  • C:\Users\Admin\AppData\Local\Temp\3582-490\b78085c3528c17a898f343ba0cad2cd241658ddbf081e86e5e53ecf8972a9140.exe

    Filesize

    5.3MB

    MD5

    e2937e33c2554eecc37c804a7f99f8b7

    SHA1

    2c33d4573e21c7d18de1d3f337bacd7c4e58fe87

    SHA256

    5dde29f028e75ee72f50902d20c41b699ef8fc5c294f04a321deac6909ffe409

    SHA512

    cf50e630cd75483f5887153490ab5c55e21a711541d0a4aa0e29d055f42076f7d58edf743bff26e145b56a69b6be9f6704e9c2b071be0aa5a7f6cc1f6be3406f

  • memory/1600-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1600-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1600-102-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB