Resubmissions

18-06-2024 15:40

240618-s4cavatfqn 9

18-06-2024 15:38

240618-s3epkstfnn 4

General

  • Target

    https://github.com/quivings/Solara/blob/main/Files/SolaraB.zip

  • Sample

    240618-s4cavatfqn

Malware Config

Targets

    • Target

      https://github.com/quivings/Solara/blob/main/Files/SolaraB.zip

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

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • Checks BIOS information in registry

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

    • 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

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Checks system information in the registry

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

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Event Triggered Execution

2
T1546

Image File Execution Options Injection

1
T1546.012

Component Object Model Hijacking

1
T1546.015

Privilege Escalation

Event Triggered Execution

2
T1546

Image File Execution Options Injection

1
T1546.012

Component Object Model Hijacking

1
T1546.015

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

2
T1112

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Command and Control

Web Service

1
T1102

Tasks