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Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/02/2025, 06:45

General

  • Target

    5c52337f2d3514f4f661ab5b462fcb2897c861400c8b469114a7e0bcd3134b69N.exe

  • Size

    105KB

  • MD5

    a4f4961f9551976af1e8611f450267d0

  • SHA1

    baf8997d20cb051301eda742a3a6ee0b156cf9bd

  • SHA256

    5c52337f2d3514f4f661ab5b462fcb2897c861400c8b469114a7e0bcd3134b69

  • SHA512

    23c1467b1fcd4f5afa4e6a33d8ef29057e8dbd0b9acb95954dea6c141f64fa39aa60c4b2ac187f1807ca54a612eca40424c13a44927818b519888d79762ad275

  • SSDEEP

    1536:JxqjQ+P04wsmJCEr2jEYjr7glako4ArJXoes5DWrC6JEqnA:sr85CErhYjrIakSJXoelrllnA

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\5c52337f2d3514f4f661ab5b462fcb2897c861400c8b469114a7e0bcd3134b69N.exe
    "C:\Users\Admin\AppData\Local\Temp\5c52337f2d3514f4f661ab5b462fcb2897c861400c8b469114a7e0bcd3134b69N.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:1596
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5c52337f2d3514f4f661ab5b462fcb2897c861400c8b469114a7e0bcd3134b69N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5c52337f2d3514f4f661ab5b462fcb2897c861400c8b469114a7e0bcd3134b69N.exe"
      2⤵
      • Executes dropped EXE
      PID:4528

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\5c52337f2d3514f4f661ab5b462fcb2897c861400c8b469114a7e0bcd3134b69N.exe

    Filesize

    64KB

    MD5

    a8ba1f13c9f9fb8800d116d7d6e0c30a

    SHA1

    8c51dda85fc2ca58f2c62d2504a319153495fa34

    SHA256

    72638942ec6bed01e8bf1fa0e25aafac5bf5af3e0f9e5cb6bdd43d14e16cdf2f

    SHA512

    fb33e16e6606d6c154cfa582fe76c919353c7ca080ddaed8efab35be1ceed7598ae2dab0cecf6dd42ea7c89752e397861526fe812dcd59e6dda6b5d4d5485039

  • memory/1596-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1596-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1596-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB