Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2024 08:28

General

  • Target

    DYNAMO.exe

  • Size

    190KB

  • MD5

    2d3de5e0032cb35ac6a65b8301c9a5cc

  • SHA1

    5010ee7bcb152a510e183eb6d105d925343c5b49

  • SHA256

    474b07d39314c53826ffeb132b78bdcf91fe130fb96de19593ac5ca650ba784a

  • SHA512

    2a2bdba51ed53c13b29a0928072ec6a702ac974da387656a10d6bea1cb81b1f7b4bd267ad97b50b3b837926824fb9815bbbe584dbc6e8d06222a0d7d6d49389e

  • SSDEEP

    3072:sr85CJF2VAzieYNqsjDo9jvvQ1hUpRdRox4jLQAgDZmox4jLQAgDZ7:k9JyeYNqZtHQApRLHnUmHnU7

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\DYNAMO.exe
    "C:\Users\Admin\AppData\Local\Temp\DYNAMO.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:2916
    • C:\Users\Admin\AppData\Local\Temp\3582-490\DYNAMO.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\DYNAMO.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4008

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\DYNAMO.exe

    Filesize

    149KB

    MD5

    cbadb03239a788fd41ef0a7054f133f8

    SHA1

    937e58600f867c953fd975ec479d75b0a48b4999

    SHA256

    957d1eca7bd120491fffb98b7e719a6957c9dd256a77f87ab37cc7ebb82da413

    SHA512

    3e19baf47dbeff2a8e6c9eebea8ad93c5459d7a5b6f9959eb7f4787b92be8dcd4902423fccb2ca1451c07523705c3d415301ce75b3eeedd51f04fa83ccead903

  • memory/2916-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2916-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2916-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB