General

  • Target

    a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly

  • Size

    4.3MB

  • Sample

    241221-mvyjtsylbj

  • MD5

    f4d4066fee7e7e63dd914f564202af5b

  • SHA1

    bf2330d98dc66911f0078539ee48e6ad8dbb4686

  • SHA256

    a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73

  • SHA512

    468d6cbcfbebf5a1140a161fe742188df14d942a3681f1931ae7c0c840c24f9c3b2e55745478c1472e2f6cfec96df27265da93917c390c6ad0c51d6d9062fba1

  • SSDEEP

    98304:yGJm9VvjOlk+BwDMO8cAqgVRWn8sTNRjWJzVGKRUVXKEbUzH:OvurwD38ygVRW8sBRCzGOuUz

Malware Config

Extracted

Family

cryptbot

C2

http://home.fivetk5vt.top/hLfzXsaqNtoEGyaUtOMJ1734

Targets

    • Target

      a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly

    • Size

      4.3MB

    • MD5

      f4d4066fee7e7e63dd914f564202af5b

    • SHA1

      bf2330d98dc66911f0078539ee48e6ad8dbb4686

    • SHA256

      a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73

    • SHA512

      468d6cbcfbebf5a1140a161fe742188df14d942a3681f1931ae7c0c840c24f9c3b2e55745478c1472e2f6cfec96df27265da93917c390c6ad0c51d6d9062fba1

    • SSDEEP

      98304:yGJm9VvjOlk+BwDMO8cAqgVRWn8sTNRjWJzVGKRUVXKEbUzH:OvurwD38ygVRW8sBRCzGOuUz

    • 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)

    • 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