General

  • Target

    file.exe

  • Size

    4.2MB

  • Sample

    241122-y14tksxrev

  • MD5

    bc7728211118c8205e3e731e353be4eb

  • SHA1

    58c807907f5384a26a02ee042e2a8ac779acec53

  • SHA256

    408c1e0d4128dd79da38e0685f991f260ed155a0c391dcea710b893c138fa65e

  • SHA512

    9da4b443fbda39f21c3dd896da5df4e9b601553ee2e8705ea998efa6e57cd24aee44109314c57a0771e705ad45fe607e71522d07402a9eb59f6d82c83eca1c2a

  • SSDEEP

    98304:s9fmFp2FtD8rp+xO1dA+p0EFxc178bb6FOsEWuRlcj5:mOFg/DeJdp0+C8iFOPe

Malware Config

Targets

    • Target

      file.exe

    • Size

      4.2MB

    • MD5

      bc7728211118c8205e3e731e353be4eb

    • SHA1

      58c807907f5384a26a02ee042e2a8ac779acec53

    • SHA256

      408c1e0d4128dd79da38e0685f991f260ed155a0c391dcea710b893c138fa65e

    • SHA512

      9da4b443fbda39f21c3dd896da5df4e9b601553ee2e8705ea998efa6e57cd24aee44109314c57a0771e705ad45fe607e71522d07402a9eb59f6d82c83eca1c2a

    • SSDEEP

      98304:s9fmFp2FtD8rp+xO1dA+p0EFxc178bb6FOsEWuRlcj5:mOFg/DeJdp0+C8iFOPe

    • 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