General

  • Target

    file.exe

  • Size

    4.2MB

  • Sample

    241122-emrgjsznbp

  • MD5

    12cd0d9c479c98fd981eec5c93de5b81

  • SHA1

    d6eb3df1e15d86dca156f9e9d57b6faf62559b6c

  • SHA256

    b2c5eff51d7f0692f552e043af3f5324cf25dccadda349d59c5dc5e95d265eb3

  • SHA512

    74674519f5702f5347be782314b5fe4e68c3e00d0baac6dfe103b3f12d9a97fdd7876d56983d599162beef9d92a3294cfd2c2da00b7f6b7dd96effe9679b752c

  • SSDEEP

    98304:xftFgAd10qZEMXgSAlTJtDUS6Ei5iO8u9YR/UnWm:xftFhb0q6MTA7eSXi5b87R/Un1

Malware Config

Targets

    • Target

      file.exe

    • Size

      4.2MB

    • MD5

      12cd0d9c479c98fd981eec5c93de5b81

    • SHA1

      d6eb3df1e15d86dca156f9e9d57b6faf62559b6c

    • SHA256

      b2c5eff51d7f0692f552e043af3f5324cf25dccadda349d59c5dc5e95d265eb3

    • SHA512

      74674519f5702f5347be782314b5fe4e68c3e00d0baac6dfe103b3f12d9a97fdd7876d56983d599162beef9d92a3294cfd2c2da00b7f6b7dd96effe9679b752c

    • SSDEEP

      98304:xftFgAd10qZEMXgSAlTJtDUS6Ei5iO8u9YR/UnWm:xftFhb0q6MTA7eSXi5b87R/Un1

    • CryptBot

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

    • Cryptbot family

    • Detects CryptBot payload

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

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

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • 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.

    • Executes dropped EXE

    • 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.

    • 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