General

  • Target
    EverythingCheker1.exe
  • Size 75.1MB
  • Sample260703-ls2yssbx4p
  • SHA256 feaf588f5836549b307f618fe2854b89e73c41f6eb09d5dc9c45e8f201bd7b48
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • overlord

C2
  • 92.119.165.248:24356

Targets

    • Target
      EverythingCheker1.exe
    • Size 75.1MB
    • SHA256 feaf588f5836549b307f618fe2854b89e73c41f6eb09d5dc9c45e8f201bd7b48
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects SentinelStealer in memory

    • Detects Sheetrat Payload

      Sheetrat aka NonEuclid RAT is a trojan written in C#.

    • Family: Overlord

      Overlord is an open-source Windows RAT written in Golang.

    • Family: SentinelStealer

      SentinelStealer is an information stealer written in C#.

    • Family: Sheetrat, NonEuclid rat

      Sheetrat aka NonEuclid RAT is a trojan written in C#.

    • Modifies WinLogon for persistence

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender TamperProtection settings

    • Modifies security service

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • 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.

    • Stops running service(s)

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Windows security modification

    • 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.

    • Checks whether UAC is enabled

    • 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.

    • ConfuserEx .NET packer

      Detects ConfuserEx .NET packer.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

MITRE ATT&CK Enterprise v16

Tasks