General

  • Target

    Bltools 2.9.1[PRO].zip

  • Size

    21.0MB

  • Sample

    241006-x52dks1erq

  • MD5

    ed4f1ac2cd7ef138ab120e73e7778008

  • SHA1

    948f229bc4cddeb9ae0edbcf6438593e9ad15167

  • SHA256

    1b68b264c499ff7ebdeb6250ff297a3c3b14842691f56975190452158597677c

  • SHA512

    97e5c362154925d8b95ae2693979bdd64274cfc0ebe09a32857a333f9050d409e6334ebed8a6448fdfef8110ed33d69504a8e0233d3ab30a7876d5207bfed518

  • SSDEEP

    393216:NrF+xCQAV2NFM+A7DwrG3YvDM+29FbDOOzFWUE/X5t8hk9R:NAxC5oORqGIbMp9FbCOZaP8hk9R

Malware Config

Targets

    • Target

      Bltools 2.9.1[PRO].zip

    • Size

      21.0MB

    • MD5

      ed4f1ac2cd7ef138ab120e73e7778008

    • SHA1

      948f229bc4cddeb9ae0edbcf6438593e9ad15167

    • SHA256

      1b68b264c499ff7ebdeb6250ff297a3c3b14842691f56975190452158597677c

    • SHA512

      97e5c362154925d8b95ae2693979bdd64274cfc0ebe09a32857a333f9050d409e6334ebed8a6448fdfef8110ed33d69504a8e0233d3ab30a7876d5207bfed518

    • SSDEEP

      393216:NrF+xCQAV2NFM+A7DwrG3YvDM+29FbDOOzFWUE/X5t8hk9R:NAxC5oORqGIbMp9FbCOZaP8hk9R

    • Detects Monster Stealer.

    • Exela Stealer

      Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.

    • Monster

      Monster is a Golang stealer that was discovered in 2024.

    • Grants admin privileges

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

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

    • Modifies Windows Firewall

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Looks up external IP address via web service

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

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Enumerates processes with tasklist

    • Hide Artifacts: Hidden Files and Directories

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks