Analysis

  • max time kernel
    91s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-12-2024 06:50

General

  • Target

    7d093b8f5dd038a71d5f680b1b7dd6237e8968f7e9e1a1eb6c18ad99646d15dbN.exe

  • Size

    1.6MB

  • MD5

    d8f661a81c3b2ee10684af239ffcb1a0

  • SHA1

    9caac2f59a2bd1296e6204b19533186c2552b7c0

  • SHA256

    7d093b8f5dd038a71d5f680b1b7dd6237e8968f7e9e1a1eb6c18ad99646d15db

  • SHA512

    2f2e79c9ee417e6e65579652c7810bf85271810733e4571979daa91c63ba8c3690bbe11d27c3bb130589ca0903a48edf8b8d7d177471ac29d1f54bce01b74793

  • SSDEEP

    24576:SdAm9DUi/CR3wCkCiRgoG7hBaHkbEXXeG/jFt51gTx9zTW:SqTytRFk6ek1EI

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\7d093b8f5dd038a71d5f680b1b7dd6237e8968f7e9e1a1eb6c18ad99646d15dbN.exe
    "C:\Users\Admin\AppData\Local\Temp\7d093b8f5dd038a71d5f680b1b7dd6237e8968f7e9e1a1eb6c18ad99646d15dbN.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:416
    • C:\Users\Admin\AppData\Local\Temp\3582-490\7d093b8f5dd038a71d5f680b1b7dd6237e8968f7e9e1a1eb6c18ad99646d15dbN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\7d093b8f5dd038a71d5f680b1b7dd6237e8968f7e9e1a1eb6c18ad99646d15dbN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3656

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\7d093b8f5dd038a71d5f680b1b7dd6237e8968f7e9e1a1eb6c18ad99646d15dbN.exe

    Filesize

    1.6MB

    MD5

    3aadf4b54786ffeb30e0639a860f6a88

    SHA1

    68f21f3195a542b33bdc4776c1e5f8a56092429c

    SHA256

    f2036fbec3a903674a1ebebe5f3a2b032a8fb9f94069ac22cc8c5427a47cb25e

    SHA512

    f99596afd822c0ad6e3db6a8d4151c51c200465a237a30b496e3f0a585ec06cc3b69c90315e01aba93b2830d14c6b71c9222d8fdf1dc11fc8c60904af0372099

  • memory/416-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/416-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/416-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3656-11-0x0000000002480000-0x0000000002481000-memory.dmp

    Filesize

    4KB

  • memory/3656-96-0x0000000000400000-0x0000000000595000-memory.dmp

    Filesize

    1.6MB