General

  • Target
    Release.zip
  • Size 1.1MB
  • Sample261022-w5thasbc49
  • SHA256 d1b22ddf69c3ec26b296354e65b2054ebcd5a56aacd62e8d8aa3e466c466e789
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      Release.zip
    • Size 1.1MB
    • SHA256 d1b22ddf69c3ec26b296354e65b2054ebcd5a56aacd62e8d8aa3e466c466e789
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

    • Target
      Guna.UI2.dll
    • Size 2.1MB
    • SHA256 6d876b257a97995d21072acd44580633468516121145cc218277edc18f971030
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      VirusBuilder.exe
    • Size 117KB
    • SHA256 9ee86ab1d6e4d75901eaf4f2ac91c9032dc0782c36af449185ab12f4ed7a0de6
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Executes dropped EXE

    • Enumerates connected drives

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

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Writes to the Master Boot Record (MBR)

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

    • Target
      VirusBuilder.pdb
    • Size 105KB
    • SHA256 2a51e7757ba105589a5cf95f2b4c648a725237c841b2a760d610cca7af4bd18d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      nasm.dll
    • Size 1.2MB
    • SHA256 a4735165141570d966b577d594c0541c29baed4978078c1c7237b855f8592a87
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

MITRE ATT&CK Enterprise v16

Tasks