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Analysis

  • max time kernel
    95s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/11/2024, 22:19

General

  • Target

    5377116e662a19c5c7b6a7d479b6beb2c8b16d84e7468277de08399448f6e750.exe

  • Size

    367KB

  • MD5

    9e0f0ed171d1a767ad25ac7b82bbcda1

  • SHA1

    f314d9c59072e5bbad0aa7910d0fe1cc84500c31

  • SHA256

    5377116e662a19c5c7b6a7d479b6beb2c8b16d84e7468277de08399448f6e750

  • SHA512

    1285a534c3c56e0d2ef71350aa5d856f12f18eb29bc0b1cd6e1b73585fa746ca846d15fb79966d12f022c614aeac6909923274ea9dee15cb92904f18d492b2ee

  • SSDEEP

    6144:k9fNyLd9wh0yoyEoZtDiBwGIWMohTZUeGdQT9nIXSk:OyLghrorQDioowcT9sl

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.

  • 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\5377116e662a19c5c7b6a7d479b6beb2c8b16d84e7468277de08399448f6e750.exe
    "C:\Users\Admin\AppData\Local\Temp\5377116e662a19c5c7b6a7d479b6beb2c8b16d84e7468277de08399448f6e750.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:1932
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5377116e662a19c5c7b6a7d479b6beb2c8b16d84e7468277de08399448f6e750.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5377116e662a19c5c7b6a7d479b6beb2c8b16d84e7468277de08399448f6e750.exe"
      2⤵
      • Executes dropped EXE
      PID:544

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\Temp\3582-490\5377116e662a19c5c7b6a7d479b6beb2c8b16d84e7468277de08399448f6e750.exe

    Filesize

    326KB

    MD5

    78ed512d5a851cb530457c06bff66edb

    SHA1

    a2dbf6e3b0e5cf25a79e01deeab3c85d8295a26c

    SHA256

    6a990a1bd8a7c03d2e7adc446d7e6be2dfad8bccd17903de179034207f12088a

    SHA512

    30341fbd5b14945d087665c8b5179617372f178d8f858f756ffb442df2dd2fc6e5cae222b7b947ff91778ee99d732ea1b831b174d5e1d27eba1d64f6f4e96985

  • memory/1932-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1932-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1932-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB