General

  • Target

    1111

  • Size

    938KB

  • Sample

    250211-ahjhxsspar

  • MD5

    4e4fa1494e8c6288b38bc725fbb51f9c

  • SHA1

    73017c81f858f61a48e8cc414230c0993b6365c8

  • SHA256

    a1af82adcb82fe7224c49bc8d10c1abeb5a5f875b63b9cd1d767ee5c03d57ebd

  • SHA512

    edeeca5628273be3b6f3194d9ccbf4aed080e5ec3001b19bfa854ab66624ed8ca7d8b50a2d32765456614ae4e3aef20f830472f5124f01228033b0609d424d45

  • SSDEEP

    24576:2qDEvCTbMWu7rQYlBQcBiT6rprG8aefl:2TvC/MTQYxsWR7aef

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://185.215.113.16/defend/random.exe

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://185.215.113.16/defend/random.exe

Targets

    • Target

      1111

    • Size

      938KB

    • MD5

      4e4fa1494e8c6288b38bc725fbb51f9c

    • SHA1

      73017c81f858f61a48e8cc414230c0993b6365c8

    • SHA256

      a1af82adcb82fe7224c49bc8d10c1abeb5a5f875b63b9cd1d767ee5c03d57ebd

    • SHA512

      edeeca5628273be3b6f3194d9ccbf4aed080e5ec3001b19bfa854ab66624ed8ca7d8b50a2d32765456614ae4e3aef20f830472f5124f01228033b0609d424d45

    • SSDEEP

      24576:2qDEvCTbMWu7rQYlBQcBiT6rprG8aefl:2TvC/MTQYxsWR7aef

    • Detects Healer an antivirus disabler dropper

    • Healer

      Healer an antivirus disabler dropper.

    • Healer family

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender Real-time Protection settings

    • Modifies Windows Defender TamperProtection settings

    • Modifies Windows Defender notification settings

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Downloads MZ/PE file

    • 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

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Windows security modification

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks