General

  • Target

    TNCYV_file.exe

  • Size

    4.2MB

  • Sample

    241125-a6lm7avlal

  • MD5

    b6837fd430b7f458f1e85ea7435676b4

  • SHA1

    d9b74ad79cb44763645fdcafc61c9aa943d9d101

  • SHA256

    e2e6381ae3a4197bd898e6427c1a3f435803f7199cced59ff6ad2d37917c6391

  • SHA512

    e8abf1ea7661382f378067658114cbcbc0d19a10a8944899665969ec5a3a8226c19d5b25dd0ad58886b39a72bce175f51def7878315fa76282001a576c809eee

  • SSDEEP

    98304:DV+VzLLiwandw/uQgqR2wVs2hJ/6gTwrirFwwtUCyCWm7VhdwLa:p+1BahqUMs2hTTUCyCWObdwLa

Malware Config

Targets

    • Target

      TNCYV_file.exe

    • Size

      4.2MB

    • MD5

      b6837fd430b7f458f1e85ea7435676b4

    • SHA1

      d9b74ad79cb44763645fdcafc61c9aa943d9d101

    • SHA256

      e2e6381ae3a4197bd898e6427c1a3f435803f7199cced59ff6ad2d37917c6391

    • SHA512

      e8abf1ea7661382f378067658114cbcbc0d19a10a8944899665969ec5a3a8226c19d5b25dd0ad58886b39a72bce175f51def7878315fa76282001a576c809eee

    • SSDEEP

      98304:DV+VzLLiwandw/uQgqR2wVs2hJ/6gTwrirFwwtUCyCWm7VhdwLa:p+1BahqUMs2hTTUCyCWObdwLa

    • 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