General

Malware Config

Extracted

Family
  • svcstealer

C2
  • http://196.251.107.186/acovp/post.php

  • http://192.162.199.186/usovp/post.php

  • http://196.251.107.163/bioxp/post.php

Attributes
  • build_id

    SlLoaded

  • srv_delay

    1

  • srv_retry

    1

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 217.195.153.81:50000

Mutex
  • s7PW4w8jaKnVmzgc

Attributes
  • install_file

    USB.exe

aes.plain

Extracted

Family
  • xworm

C2
  • 209.145.51.44:7000

Attributes
  • install_file

    USB.exe

aes.plain

Extracted

Family
  • phantom_stealer

Version
  • v3.5.0

Mutex
  • 1YA6UHTISPAQ669J8KKQ

Attributes
  • anti_analysis

    0

  • cb_enables_ssl

    0

  • debug

    0

  • keylogger

    1

  • start_delay

    0

  • startup

    1

Extracted

Family
  • asyncrat

Botnet
  • Default

Attributes
  • delay

    1

  • install

    true

  • install_file

    vortex.exe

  • install_folder

    %AppData%

  • local_host

    127.0.0.1

aes.plain

Extracted

Family
  • quasar

Attributes
  • encryption_key

    AFA3CAD4ED1D6F9700536DD60F51307FFEA2892B

  • key_salt

    5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382

  • reconnect_delay

    3000

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • Office04

C2
  • 94.158.245.53:9992

Mutex
  • 4abbc77f-27e2-4983-8fe9-6fafbfb7627b

Attributes
  • encryption_key

    F5CCD6560C6A9C857BE240A8EE0DF9CF88BC3B2B

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Extracted

Family
  • solaris_loader

C2
  • 196.251.107.186

  • 192.162.199.186

  • 196.251.107.163

Extracted

Family
  • metasploit

Version
  • encoder/shikata_ga_nai

Targets

    • Detect SalatStealer payload

    • Detect Xworm Payload

    • Detects PhantomStealer written in C#

    • Detects SvcStealer Payload

      SvcStealer aka Diamotrix Clipper is a stealer/downloader written in C++.

    • Family: AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Family: Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

    • Family: Formbook

      Formbook is a data stealing malware which is capable of stealing data.

    • Family: MetaSploit

      Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

    • Family: PhantomStealer

      Phantom Stealer is a stealer written in C#, forked from the Stealerium family.

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Family: Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Family: SolarisLoader

      SolarisLoader is a Windows loader written in C.

    • Family: SvcStealer, Diamotrix

      SvcStealer aka Diamotrix Clipper is a stealer/downloader written in C++.

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Family: salatstealer

      SalatStealer is a stealer that takes sceenshot written in Golang.

    • Formbook payload

    • Modifies WinLogon for persistence

    • Modifies Windows Defender DisableAntiSpyware settings

    • Quasar payload

    • Suricata alert: REMCOS RAT Malware Inbound C2 Communication

      Network activity triggered a Suricata alert

    • Suricata alert: REMCOS RAT Malware Outbound C2 Communication

      Network activity triggered a Suricata alert

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Downloads MZ/PE file

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to make their binary seem validly signed.

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Creates new service(s)

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads user/profile data of web browsers

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

    • Stops running service(s)

    • 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.

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

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

    • Network Share Discovery

      Attempt to gather information on host network.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks