General

  • Target

    RePack.zip

  • Size

    216.9MB

  • Sample

    250413-vadb6azzav

  • MD5

    27370b416b2572795c77703fd3834e28

  • SHA1

    201404875e5f4383046b31edd2fba005cfd63519

  • SHA256

    917958398d1baa2cead72947f73ad8db2bf216dfcc56bae4094e7235845ac2eb

  • SHA512

    231aa6933f3fe03fe882929c694b20c0031d32f5dbb82b3abc8d20cdb0ab4ad518fc04cb1af536a9dc174a03c72fc56f47c2b8abbe4cd9ad7ca7c90b1b8e9b72

  • SSDEEP

    6291456:wb+5W0gFHKuWLsCO7Cr2Ov9FY4YdfLLsgO9m5TCFNice:wb+8BFH1CgtU+9LQgum5TkNa

Malware Config

Targets

    • Target

      RePack.zip

    • Size

      216.9MB

    • MD5

      27370b416b2572795c77703fd3834e28

    • SHA1

      201404875e5f4383046b31edd2fba005cfd63519

    • SHA256

      917958398d1baa2cead72947f73ad8db2bf216dfcc56bae4094e7235845ac2eb

    • SHA512

      231aa6933f3fe03fe882929c694b20c0031d32f5dbb82b3abc8d20cdb0ab4ad518fc04cb1af536a9dc174a03c72fc56f47c2b8abbe4cd9ad7ca7c90b1b8e9b72

    • SSDEEP

      6291456:wb+5W0gFHKuWLsCO7Cr2Ov9FY4YdfLLsgO9m5TCFNice:wb+8BFH1CgtU+9LQgum5TkNa

    • RMS

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

    • Rms family

    • Grants admin privileges

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

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

    • Remote Service Session Hijacking: RDP Hijacking

      Adversaries may hijack a legitimate user's remote desktop session to move laterally within an environment.

    • Blocks application from running via registry modification

      Adds application to list of disallowed applications.

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Server Software Component: Terminal Services DLL

    • 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.

    • Executes dropped EXE

    • 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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • 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

    • Hide Artifacts: Hidden Users

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks