General

  • Target

    9c27c3c506f2c018c73d1ad20623e5d2.exe

  • Size

    791KB

  • Sample

    230317-pjvd5sgb65

  • MD5

    9c27c3c506f2c018c73d1ad20623e5d2

  • SHA1

    236c8990a2133fe0a3ca2fa0498999a85893a7b5

  • SHA256

    40d1db94dc15e8042332d08a56ab9694cd27d86a124941fffd12ec4ee8dfe527

  • SHA512

    911984acfe90d4d4842e84a22c50b20bb35d6caa66bd7485faa727b678cb520a11bba70585a47263cc88a95ecff115135cabf91b649e03dc4610bc818628b3e0

  • SSDEEP

    24576:qLsifA9O1vvbWxmS1oiSFLKAypX/Q+UcH:qLsifu0W0iSFL3AQ7k

Malware Config

Extracted

Family

cryptbot

C2

http://ernwld52.top/gate.php

Targets

    • Target

      9c27c3c506f2c018c73d1ad20623e5d2.exe

    • Size

      791KB

    • MD5

      9c27c3c506f2c018c73d1ad20623e5d2

    • SHA1

      236c8990a2133fe0a3ca2fa0498999a85893a7b5

    • SHA256

      40d1db94dc15e8042332d08a56ab9694cd27d86a124941fffd12ec4ee8dfe527

    • SHA512

      911984acfe90d4d4842e84a22c50b20bb35d6caa66bd7485faa727b678cb520a11bba70585a47263cc88a95ecff115135cabf91b649e03dc4610bc818628b3e0

    • SSDEEP

      24576:qLsifA9O1vvbWxmS1oiSFLKAypX/Q+UcH:qLsifu0W0iSFL3AQ7k

    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

    • 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.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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

    • Maps connected drives based on registry

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks