General

  • Target

    f85b5468d7c84789fbff118d25fcd3f5ca413e902e21669188c5907f20bf0372

  • Size

    4.3MB

  • Sample

    220625-hckssshfbk

  • MD5

    5a8d2c68f92a9412de33b1aa9546716c

  • SHA1

    a00e192f237dd0905ee34365c5adbca5af4e252f

  • SHA256

    f85b5468d7c84789fbff118d25fcd3f5ca413e902e21669188c5907f20bf0372

  • SHA512

    9ccea95b1202a251d6c02c3a2de18271a9fefe6cd447df0996817b39910404ec5002af12a023d67295c6218e68830f0665f0584dc49975a706263ae644974e5d

Malware Config

Targets

    • Target

      f85b5468d7c84789fbff118d25fcd3f5ca413e902e21669188c5907f20bf0372

    • Size

      4.3MB

    • MD5

      5a8d2c68f92a9412de33b1aa9546716c

    • SHA1

      a00e192f237dd0905ee34365c5adbca5af4e252f

    • SHA256

      f85b5468d7c84789fbff118d25fcd3f5ca413e902e21669188c5907f20bf0372

    • SHA512

      9ccea95b1202a251d6c02c3a2de18271a9fefe6cd447df0996817b39910404ec5002af12a023d67295c6218e68830f0665f0584dc49975a706263ae644974e5d

    • CryptBot

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

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

    • Blocklisted process makes network request

    • Executes dropped EXE

    • 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.

    • Identifies Wine through registry keys

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks