General

  • Target

    YBLLT_file.exe

  • Size

    4.2MB

  • Sample

    241121-3m8b3azqcz

  • MD5

    e44fb60a2cfd998fee51e42e436fc4b5

  • SHA1

    24edb01b49d8a6cc4533a8ada342be18c0ad13f9

  • SHA256

    84363c685284008ab2c536946d3dd1b69bcbc1636754d6181b16611003760cb9

  • SHA512

    4c1169f81b3e272e8db65264226f977bd24216cc558aac28036d827e3e64b484c7b8251ff80ce8094df4137ca1c3fc2a6c4b1813191e6cd91d2d15cc0f2e2293

  • SSDEEP

    98304:0Fjad1G+OLu0LP2vD2NuxY2dTpA6IjitYebn:0JKs+OLu0bUxY6dnmiqs

Malware Config

Targets

    • Target

      YBLLT_file.exe

    • Size

      4.2MB

    • MD5

      e44fb60a2cfd998fee51e42e436fc4b5

    • SHA1

      24edb01b49d8a6cc4533a8ada342be18c0ad13f9

    • SHA256

      84363c685284008ab2c536946d3dd1b69bcbc1636754d6181b16611003760cb9

    • SHA512

      4c1169f81b3e272e8db65264226f977bd24216cc558aac28036d827e3e64b484c7b8251ff80ce8094df4137ca1c3fc2a6c4b1813191e6cd91d2d15cc0f2e2293

    • SSDEEP

      98304:0Fjad1G+OLu0LP2vD2NuxY2dTpA6IjitYebn:0JKs+OLu0bUxY6dnmiqs

    • 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