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Analysis

  • max time kernel
    145s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2024, 00:19

General

  • Target

    9304a3a20973c8cc5499f0d3eee5bde29d7d6daef09ce0855c182dc63dd89937.exe

  • Size

    3.0MB

  • MD5

    90882c6a5924e96e094ad9ec60e4fc71

  • SHA1

    2837bef91c375ec03df9b580cce2829dfd0b0e3d

  • SHA256

    9304a3a20973c8cc5499f0d3eee5bde29d7d6daef09ce0855c182dc63dd89937

  • SHA512

    459ca5bbb16b1090c1e0dfea0c08b5e2eefb3d0bdc500e3942da35546847548c7de0f17a2ddf06052258588afe898dda0428e350fdc26b28369d4781b7864176

  • SSDEEP

    49152:lgDSSUtLyAwMCHavq9W3vIMM4WDvh4uPT7fkZTwhgByTaZfai0Ongi7:OlUtLVhCHaio3qXh4uLI5wkTnN

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\9304a3a20973c8cc5499f0d3eee5bde29d7d6daef09ce0855c182dc63dd89937.exe
    "C:\Users\Admin\AppData\Local\Temp\9304a3a20973c8cc5499f0d3eee5bde29d7d6daef09ce0855c182dc63dd89937.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:4732
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9304a3a20973c8cc5499f0d3eee5bde29d7d6daef09ce0855c182dc63dd89937.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9304a3a20973c8cc5499f0d3eee5bde29d7d6daef09ce0855c182dc63dd89937.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2556

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\9304a3a20973c8cc5499f0d3eee5bde29d7d6daef09ce0855c182dc63dd89937.exe

    Filesize

    2.9MB

    MD5

    1bf4a25634875f3eed94faab416095c6

    SHA1

    c051d16941a76f7febd6ec7266bd0d8d8caf9ef9

    SHA256

    2d91ad5f9973559db9a2ee8475eaa00aaad40de71c2f27e69997db2a751aafb8

    SHA512

    33fba7c3614aeb22589ce66fb90c5604658e182249154eef615fde1047526cbe3fff50296ab364faf05746785108ec207dc55468fbbef21ec12ef022a9cd8673

  • memory/4732-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4732-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4732-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB