Overview

overview

10

Static

static

3

MuRra1N Installer.exe

windows11-21h2-x64

10

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General

  • Target

    MuRra1N Installer.exe

  • Size

    15.7MB

  • Sample

    240617-yh59pawbmr

  • MD5

    037ac0e6baf12a5eaf477c48fe923f2e

  • SHA1

    19cadd63865579f4f7ceee970c731d9ff0e5a20a

  • SHA256

    13a21602d5f5fceadfb7e45828fe76a44dc2dab2932fed665938715af574be9d

  • SHA512

    70f80fc9bd3c9b163d694376b294619810099146b09b0bf479e5435001758bbe9450ba72766e4cdb873e68c205d9f85df6fc4129f33f7043fc90f86bc4c4e5b0

  • SSDEEP

    393216:5NqIqvpE65+X2WPccsW9DM27doT6VWD2Ln9CDuIuLGgvKcE:50i6UmGM27mmsAn9C6fGgv/

Score
10/10
limeratevasionrat

Malware Config

Targets

    • Target

      MuRra1N Installer.exe

    • Size

      15.7MB

    • MD5

      037ac0e6baf12a5eaf477c48fe923f2e

    • SHA1

      19cadd63865579f4f7ceee970c731d9ff0e5a20a

    • SHA256

      13a21602d5f5fceadfb7e45828fe76a44dc2dab2932fed665938715af574be9d

    • SHA512

      70f80fc9bd3c9b163d694376b294619810099146b09b0bf479e5435001758bbe9450ba72766e4cdb873e68c205d9f85df6fc4129f33f7043fc90f86bc4c4e5b0

    • SSDEEP

      393216:5NqIqvpE65+X2WPccsW9DM27doT6VWD2Ln9CDuIuLGgvKcE:50i6UmGM27mmsAn9C6fGgv/

    Score
    10/10
    limeratevasionrat

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • LimeRAT

      Simple yet powerful RAT for Windows machines written in .NET.

      ratlimerat

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

      evasion

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks