Overview

overview

10

Static

static

3

4776527f50...38.exe

windows7-x64

9

4776527f50...38.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    4776527f503f33a2854e1db14273a002a7ff8b50c47e49d83c98840add78ed38

  • Size

    4.5MB

  • Sample

    231018-rl8qnage88

  • MD5

    a35b88f8716f20f5a89adf37c752f27a

  • SHA1

    6c6ae45f46e3afc66bba24d94c49718eac416483

  • SHA256

    4776527f503f33a2854e1db14273a002a7ff8b50c47e49d83c98840add78ed38

  • SHA512

    7e52886e3c4819e40fe9870a8763da79abf8d14bd26a3c87fed38188664521c4b2109cd2a55a736e9281f8292397adb91366e0fc09825993c37cd93d7b824441

  • SSDEEP

    98304:70bHVHZF9AnZp4WvOhvSmEHXK8L6nMWcAI3uL81Ah4DH/mviccF:7wVHZ3Ep4W213WXK8LUveeg1c4DH/mv

Score
10/10
fatalratevasioninfostealerpersistencerat

Malware Config

Targets

    • Target

      4776527f503f33a2854e1db14273a002a7ff8b50c47e49d83c98840add78ed38

    • Size

      4.5MB

    • MD5

      a35b88f8716f20f5a89adf37c752f27a

    • SHA1

      6c6ae45f46e3afc66bba24d94c49718eac416483

    • SHA256

      4776527f503f33a2854e1db14273a002a7ff8b50c47e49d83c98840add78ed38

    • SHA512

      7e52886e3c4819e40fe9870a8763da79abf8d14bd26a3c87fed38188664521c4b2109cd2a55a736e9281f8292397adb91366e0fc09825993c37cd93d7b824441

    • SSDEEP

      98304:70bHVHZF9AnZp4WvOhvSmEHXK8L6nMWcAI3uL81Ah4DH/mviccF:7wVHZ3Ep4W213WXK8LUveeg1c4DH/mv

    Score
    10/10
    evasionpersistencefatalratinfostealerrat

    • FatalRat

      FatalRat is a modular infostealer family written in C++ first appearing in June 2021.

      infostealerratfatalrat

    • Fatal Rat payload

      ratinfostealer

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

      evasion

    • Downloads MZ/PE file

    • 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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks