Overview

overview

10

Static

static

3

NOSU.exe

windows7-x64

10

NOSU.exe

windows10-2004-x64

10

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General

  • Target

    NOSU.exe

  • Size

    86KB

  • Sample

    240908-n253xsvbnq

  • MD5

    19821b42fb6c365e341d751505af9d2c

  • SHA1

    5537fa3e031abe119faa45cef02cc3573829a508

  • SHA256

    086b1059bd646df913f8ed3a5fd3ee6efd6e63b5ee0d9f1a0d98246993832ab4

  • SHA512

    06d6ca44a662118536fda0a8e9f9d7b96b74c0f37c1fabcf6e516cbfc608348ad0e369c302e94f3929b949aa4f0f37e969ad565ae1cd8eb9eaa90654603ee1b2

  • SSDEEP

    384:ee8HUEVwV7gxlz2/uwG0XbO/UaHgGkE002c8Dqs9DTUiJFnh:e/f8G30g8b98izh

Score
10/10
shurkdiscoveryevasionexecutioninfostealertrojan

Malware Config

Targets

    • Target

      NOSU.exe

    • Size

      86KB

    • MD5

      19821b42fb6c365e341d751505af9d2c

    • SHA1

      5537fa3e031abe119faa45cef02cc3573829a508

    • SHA256

      086b1059bd646df913f8ed3a5fd3ee6efd6e63b5ee0d9f1a0d98246993832ab4

    • SHA512

      06d6ca44a662118536fda0a8e9f9d7b96b74c0f37c1fabcf6e516cbfc608348ad0e369c302e94f3929b949aa4f0f37e969ad565ae1cd8eb9eaa90654603ee1b2

    • SSDEEP

      384:ee8HUEVwV7gxlz2/uwG0XbO/UaHgGkE002c8Dqs9DTUiJFnh:e/f8G30g8b98izh

    Score
    10/10
    shurkdiscoveryevasionexecutioninfostealertrojan

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • Shurk

      Shurk is an infostealer, written in C++ which appeared in 2021.

      infostealershurk

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks