General

  • Target

    40cb4053a584486a21a109ffb44933c9.bin

  • Size

    4.2MB

  • Sample

    241123-bh4drszmfq

  • MD5

    fbf856b8965c3391f06922c56a31af0d

  • SHA1

    88dddd361433c27686198a532e652f1a71611196

  • SHA256

    81ae0f04ad56741a5d9d969c8de1834dd11897edf08a52b16487af6678e6b2b4

  • SHA512

    779aa2b3d87f5ca9c1653693f9b1bb90bb418ee5e1963da4352dcd7c1cf86805f7b9ddf5091b34ead49d36cb394cb53280eb0b044a110918577ff71c883d635d

  • SSDEEP

    98304:mTbrB7GYhDK/wOu30T1XciZ+BLtu3xCXDJxrYnyKXKF:uBi86wOukxsCAbjrIbKF

Malware Config

Targets

    • Target

      71b2a45658b6d8df33fc9bacc2c938ec598db52f8a477d859632d774802c0d84.exe

    • Size

      4.2MB

    • MD5

      40cb4053a584486a21a109ffb44933c9

    • SHA1

      07a94039a6176646ecdb0a5b0fab59b632bdbd18

    • SHA256

      71b2a45658b6d8df33fc9bacc2c938ec598db52f8a477d859632d774802c0d84

    • SHA512

      58356679459f0c4126905cb2603c21fcc77f84c338ed8f03bd9639027c1e47475a09e4d2617aff5b695caf0915c36b59570e2572b64142dd76701c8ddc0fffd3

    • SSDEEP

      98304:MS/IP1tXjcvurtGm5Awv025ancWoTMcmMWnV:MS/81tTcvugm/s25LWtcrU

    • 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