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
    25-11-2024 04:14

General

  • Target

    d07f9043cc844cb33f892b4b69c34276680bccbea035f7fab8b3590d9a6ec12f.exe

  • Size

    5.3MB

  • MD5

    db58dc182212b01aabab5263b379e694

  • SHA1

    b3e5bcb133d786efd5cb8802207656fd05c86172

  • SHA256

    d07f9043cc844cb33f892b4b69c34276680bccbea035f7fab8b3590d9a6ec12f

  • SHA512

    3505dbaa2dbdf7ae48877cf5de5415ec1c560fd92032357f2098351cd781fa1a6af59e017f5d6cd8f97ad37893a091005fc48e8afb7f5d20b179e0553605b25a

  • SSDEEP

    98304:rnwUaw19nTKZ6Oo32kxlYWWDV2ED7hXYkMAXL95nnLONXauZeHV8nCX:rnbLeo1YWWUuBYkrh5nLOV0CY

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 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\d07f9043cc844cb33f892b4b69c34276680bccbea035f7fab8b3590d9a6ec12f.exe
    "C:\Users\Admin\AppData\Local\Temp\d07f9043cc844cb33f892b4b69c34276680bccbea035f7fab8b3590d9a6ec12f.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:1364
    • C:\Users\Admin\AppData\Local\Temp\3582-490\d07f9043cc844cb33f892b4b69c34276680bccbea035f7fab8b3590d9a6ec12f.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\d07f9043cc844cb33f892b4b69c34276680bccbea035f7fab8b3590d9a6ec12f.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3996

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\$inst\20.tmp

    Filesize

    1KB

    MD5

    f224a57d2360663c81621f59e89ecf25

    SHA1

    1d845c34ffd6cedd4db4f3e162abc9eafe14c341

    SHA256

    50036bb43ca15ac8108981b53de7d015d3d7af9df975c00d9f81f4ca17a3a4d6

    SHA512

    d2fd7c440d4df6e3f14e2713523c3207b12f70b2e2405871a6f2b96f0d279edb9031b6d81f04f434f65920bba4923d9823c15b9c944a344ab53c3fca043e3b86

  • C:\Users\Admin\AppData\Local\Temp\3582-490\d07f9043cc844cb33f892b4b69c34276680bccbea035f7fab8b3590d9a6ec12f.exe

    Filesize

    5.2MB

    MD5

    cac3d5020eff7d5343861c3ea13f1f73

    SHA1

    6f93acec1bf4c0b0c159e26a8e68c6e3cc091b36

    SHA256

    299ab6f91ca914095eb9f9790dfe7231649b49e21010bea240d766181665bfd4

    SHA512

    4a7fcf8ecc8d9e8375309ac2cd3597f14c9e3657588d8486f8df290d8d34272a840ee2823d9839e07d8cfe04b1d75580714602af6f8784215c612fc83b5b546b

  • memory/1364-117-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1364-119-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1364-122-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3996-118-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB