General

  • Target

    efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679

  • Size

    10.8MB

  • Sample

    240701-e4vkjaweqa

  • MD5

    b1a2d6b1d05ffd2ca1724df174da486f

  • SHA1

    0d74a7c916fc4ee151873bbcc0028ad0a711b97b

  • SHA256

    efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679

  • SHA512

    4e0e494d2c3227905b6561a26b512d63acb4a12a609b6ce3004cdb687fcf0ad66d3544e99dc6a9f2e5a6dce7c393d0acd1e942500d57a25de173427a344a1185

  • SSDEEP

    196608:CLa6/bEEtnhwf1aDBjuiqzfyXLqkyuU4kPlyj7XFEg/BFU9vI9DMdAQCaCT0BG0E:CBbNSf1athqLyXvyuUc7VZ/5MdSNdF

Malware Config

Targets

    • Target

      efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679

    • Size

      10.8MB

    • MD5

      b1a2d6b1d05ffd2ca1724df174da486f

    • SHA1

      0d74a7c916fc4ee151873bbcc0028ad0a711b97b

    • SHA256

      efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679

    • SHA512

      4e0e494d2c3227905b6561a26b512d63acb4a12a609b6ce3004cdb687fcf0ad66d3544e99dc6a9f2e5a6dce7c393d0acd1e942500d57a25de173427a344a1185

    • SSDEEP

      196608:CLa6/bEEtnhwf1aDBjuiqzfyXLqkyuU4kPlyj7XFEg/BFU9vI9DMdAQCaCT0BG0E:CBbNSf1athqLyXvyuUc7VZ/5MdSNdF

    • 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.

    • Identifies Wine through registry keys

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

    • Checks whether UAC is enabled

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Tasks