Resubmissions

28/11/2022, 09:53

221128-lwp4eaea3310

17/11/2022, 04:28

221117-e328zsdf6910

07/11/2022, 10:35

221107-mm272secgj10

General

  • Target
    221107-hzpp9sded3_pw_infected.zip
  • Size 60.1MB
  • Sample221117-e328zsdf69
  • SHA256 cde3720e9c1d758e606495f4eb216e165e0e2bbe80c9018f32287ae31f553693
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      update.rar
    • Size 60.2MB
    • SHA256 ca94c8bbbb10febb8187f8c709affaa91911f646cf0ac99e857bf45b3a709091
    • MD5 SHA1 SHA512 SSDEEP
    • Modifies Windows Defender Real-time Protection settings

    • Modifies visiblity of hidden/system files in Explorer

    • RMS

      Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • UAC bypass

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

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

    • XMRig Miner payload

    • Blocklisted process makes network request

    • Blocks application from running via registry modification

      Adds application to list of disallowed applications.

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Registers new Print Monitor

    • Sets DLL path for service in the registry

    • Stops running service(s)

    • UPX packed file

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

    • 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.

    • Loads dropped DLL

    • Modifies file permissions

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

    • 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.

    • Modifies WinLogon

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks