General

  • Target

    https://cdn.discordapp.com/attachments/1233411619078279248/1234166922568929280/CatalystInDev_0.1.zip?ex=664e1184&is=664cc004&hm=ec83d824e06fd1f0661a9a56a855348cc2d266cfc77cf91d21894df10a8b9b90&

  • Sample

    240522-azbveaeh74

Malware Config

Targets

    • Target

      https://cdn.discordapp.com/attachments/1233411619078279248/1234166922568929280/CatalystInDev_0.1.zip?ex=664e1184&is=664cc004&hm=ec83d824e06fd1f0661a9a56a855348cc2d266cfc77cf91d21894df10a8b9b90&

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

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Command and Control

Web Service

1
T1102

Tasks