General

  • Target

    04353faf948ac82467abdaef39ca9e5faf82949f70451b52484cc89f62db3288

  • Size

    938KB

  • Sample

    250211-zm5pdszmdx

  • MD5

    b0e26d4c0deccb5336b54741c7a474d8

  • SHA1

    a4b67c07cbac4b434baaad53b61a281b4f93e219

  • SHA256

    04353faf948ac82467abdaef39ca9e5faf82949f70451b52484cc89f62db3288

  • SHA512

    90892f6604514f07e0f320e391976e76f499ab7b25f0a871153ef533a2e0d000a448cc15bea6d6d808e249d2043a54f340a77bbf62676d90de350ca8d230aad0

  • SSDEEP

    24576:LqDEvCTbMWu7rQYlBQcBiT6rprG8aeXl:LTvC/MTQYxsWR7aeX

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

      04353faf948ac82467abdaef39ca9e5faf82949f70451b52484cc89f62db3288

    • Size

      938KB

    • MD5

      b0e26d4c0deccb5336b54741c7a474d8

    • SHA1

      a4b67c07cbac4b434baaad53b61a281b4f93e219

    • SHA256

      04353faf948ac82467abdaef39ca9e5faf82949f70451b52484cc89f62db3288

    • SHA512

      90892f6604514f07e0f320e391976e76f499ab7b25f0a871153ef533a2e0d000a448cc15bea6d6d808e249d2043a54f340a77bbf62676d90de350ca8d230aad0

    • SSDEEP

      24576:LqDEvCTbMWu7rQYlBQcBiT6rprG8aeXl:LTvC/MTQYxsWR7aeX

    • 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

    • Boot or Logon Autostart Execution: Active Setup

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

    • 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.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • 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

    • Checks installed software on the system

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

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks