General

  • Target

    random.exe

  • Size

    6.3MB

  • Sample

    250215-tvmwnatmb1

  • MD5

    368e676306818d9266f0d4948e0eb541

  • SHA1

    4d67aef52ca4ff56130990bd789ba99887e8094f

  • SHA256

    3bf45d9e1a4948475d8770f14d50fcf227eb60484f892fab04896e95c16fe8ac

  • SHA512

    d9f0f7ce266411e3493d1c617d6d322beeed05704cd30689cd3e4f95c7f3d47ec2ab0704c17094a94dc4b2059bbd088df77751ed782d3aac06893319bd650d16

  • SSDEEP

    98304:yuDuKIqCMOWkhl9mPIiyZlpVbawv+MqdEjDYPVakdiNV2:5DuK7XOWXDyZlbVoVasiG

Malware Config

Extracted

Family

cryptbot

C2

http://home.fivejj5sr.top/fWukggcxTlVTnBnJjsCp17

Targets

    • Target

      random.exe

    • Size

      6.3MB

    • MD5

      368e676306818d9266f0d4948e0eb541

    • SHA1

      4d67aef52ca4ff56130990bd789ba99887e8094f

    • SHA256

      3bf45d9e1a4948475d8770f14d50fcf227eb60484f892fab04896e95c16fe8ac

    • SHA512

      d9f0f7ce266411e3493d1c617d6d322beeed05704cd30689cd3e4f95c7f3d47ec2ab0704c17094a94dc4b2059bbd088df77751ed782d3aac06893319bd650d16

    • SSDEEP

      98304:yuDuKIqCMOWkhl9mPIiyZlpVbawv+MqdEjDYPVakdiNV2:5DuK7XOWXDyZlbVoVasiG

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Enumerates VirtualBox registry keys

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

    • Downloads MZ/PE file

    • 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 installed software on the system

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks