General

  • Target
    2026-04-18_3ef2f36b856f3538af201d2cd2b46756_cloudeye_dosia_elex_wannacry
  • Size 36.3MB
  • Sample260418-ewcpragt91
  • SHA256 19fe744400b13ef08de1ebfb286999479e7a3401dde7e5f9bba77e44e2dffc5a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      2026-04-18_3ef2f36b856f3538af201d2cd2b46756_cloudeye_dosia_elex_wannacry
    • Size 36.3MB
    • SHA256 19fe744400b13ef08de1ebfb286999479e7a3401dde7e5f9bba77e44e2dffc5a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects DonutLoader

    • Family: DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Executes dropped EXE

    • Loads dropped DLL

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Adds Run key to start application

    • Badlisted process makes network request

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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

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

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks