General

  • Target

    3b7d0abceb727dc96071b6464ccc4d56b43867a79cfba2d4ea4e8880b820ea85

  • Size

    1.8MB

  • Sample

    240507-2lxcqsef77

  • MD5

    5386eade3b9371e6ed7ecc61289f592c

  • SHA1

    4c63c9347a48ab32331df9d48a6b63f5e10bd3db

  • SHA256

    3b7d0abceb727dc96071b6464ccc4d56b43867a79cfba2d4ea4e8880b820ea85

  • SHA512

    37093370227ce093d7325f49c170a0d06ea2c8d856f8718eb5007742daaeca326a562d14b305dafdfbc9459ddb1475fa04bc512206648d676d7a962e77699654

  • SSDEEP

    49152:UUbujNEE1iVWJz8PqMU9LxLV3VLcjIAe6yncBWR:vbOAwYPqb9LVVF6JnIR

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    covisoft.asia
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Ho@225498!

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mx.rizet.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    BURMBKD137

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.microlins.com.br
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    07194494000131

Extracted

Family

amadey

Version

4.18

C2

http://193.233.132.56

Attributes
  • install_dir

    09fd851a4f

  • install_file

    explorha.exe

  • strings_key

    443351145ece4966ded809641c77cfa8

  • url_paths

    /Pneh2sXQk0/index.php

rc4.plain

Extracted

Family

redline

Botnet

Test1234

C2

185.215.113.67:26260

Extracted

Family

stealc

C2

http://49.13.229.86

Attributes
  • url_path

    /c73eed764cc59dcb.php

Extracted

Family

amadey

Version

4.18

C2

http://193.233.132.56

Attributes
  • strings_key

    443351145ece4966ded809641c77cfa8

  • url_paths

    /Pneh2sXQk0/index.php

rc4.plain

Extracted

Family

redline

Botnet

newpub

C2

185.215.113.67:26260

Extracted

Family

systembc

C2

67.211.218.147:4001

Extracted

Family

redline

Botnet

@CLOUDYTTEAM

C2

185.172.128.33:8970

Targets

    • Target

      3b7d0abceb727dc96071b6464ccc4d56b43867a79cfba2d4ea4e8880b820ea85

    • Size

      1.8MB

    • MD5

      5386eade3b9371e6ed7ecc61289f592c

    • SHA1

      4c63c9347a48ab32331df9d48a6b63f5e10bd3db

    • SHA256

      3b7d0abceb727dc96071b6464ccc4d56b43867a79cfba2d4ea4e8880b820ea85

    • SHA512

      37093370227ce093d7325f49c170a0d06ea2c8d856f8718eb5007742daaeca326a562d14b305dafdfbc9459ddb1475fa04bc512206648d676d7a962e77699654

    • SSDEEP

      49152:UUbujNEE1iVWJz8PqMU9LxLV3VLcjIAe6yncBWR:vbOAwYPqb9LVVF6JnIR

    • Amadey

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

    • DcRat

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

    • Detect ZGRat V1

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Modifies firewall policy service

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • Stealc

      Stealc is an infostealer written in C++.

    • SystemBC

      SystemBC is a proxy and remote administration tool first seen in 2019.

    • UAC bypass

    • Windows security bypass

    • ZGRat

      ZGRat is remote access trojan written in C#.

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

    • Modifies boot configuration data using bcdedit

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Installed Components in the registry

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • Stops running service(s)

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Drops startup 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.

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Windows security modification

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Checks whether UAC is enabled

    • Drops Chrome extension

    • Legitimate hosting services abused for malware hosting/C2

    • Manipulates WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks