General

  • Target

    Testing (5).zip

  • Size

    6.0MB

  • Sample

    241124-b7xbratpan

  • MD5

    4361601ad4e2af850ccf0e600509c2ca

  • SHA1

    9a2112227673788b6570384a2eb1f32537f46a30

  • SHA256

    2c41808826974a0fdd3c7b27850143cad077a79e0cf69c011da495d6abee679a

  • SHA512

    74e884d5cd117b6d5898f9c2b3ccd424b46a9bd958e2412987fdba00496318547a1b1f625de6b5195c8150ce81ef58e8c015875ccc00b222ffda1d5e0f830eab

  • SSDEEP

    98304:VYhsAjqphjdMXv8Xg1qdPNGv4mLI833edIVEXYxssdOTyc4Fh+LhwgLUpjbk387K:qsAW7jakwUGv6E3edIqB2c4FIhwg6/yd

Malware Config

Extracted

Family

discordrat

Attributes
  • discord_token

    MTMwOTg3NTA0MzA1MTg5Njk1NA.GTR-3U.C7tazMXoRaSR--tVDMbQdoDKBw2f8bLXItZIRo

  • server_id

    1309876526615101530

Extracted

Family

meduza

C2

109.107.181.162

Attributes
  • anti_dbg

    true

  • anti_vm

    true

  • build_name

    761

  • extensions

    none

  • grabber_max_size

    1.048576e+06

  • links

    none

  • port

    15666

  • self_destruct

    true

Extracted

Family

amadey

Version

5.04

Botnet

4bee07

C2

http://185.215.113.209

Attributes
  • install_dir

    fc9e0aaab7

  • install_file

    defnur.exe

  • strings_key

    191655f008adc880f91bfc85bc56db54

  • url_paths

    /Fru7Nk9/index.php

rc4.plain

Targets

    • Target

      Testing (5).zip

    • Size

      6.0MB

    • MD5

      4361601ad4e2af850ccf0e600509c2ca

    • SHA1

      9a2112227673788b6570384a2eb1f32537f46a30

    • SHA256

      2c41808826974a0fdd3c7b27850143cad077a79e0cf69c011da495d6abee679a

    • SHA512

      74e884d5cd117b6d5898f9c2b3ccd424b46a9bd958e2412987fdba00496318547a1b1f625de6b5195c8150ce81ef58e8c015875ccc00b222ffda1d5e0f830eab

    • SSDEEP

      98304:VYhsAjqphjdMXv8Xg1qdPNGv4mLI833edIVEXYxssdOTyc4Fh+LhwgLUpjbk387K:qsAW7jakwUGv6E3edIqB2c4FIhwg6/yd

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Amadey family

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Dcrat family

    • Discord RAT

      A RAT written in C# using Discord as a C2.

    • Discordrat family

    • Meduza

      Meduza is a crypto wallet and info stealer written in C++.

    • Meduza Stealer payload

    • Meduza family

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

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

    • Renames multiple (2879) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • A potential corporate email address has been identified in the URL: [email protected]

    • Checks BIOS information in registry

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

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • 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.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks