General

  • Target

    installer.exe

  • Size

    2.7MB

  • Sample

    211020-3lkjlsaefr

  • MD5

    a9a3893285e274d60a9bb5b85f4dfcc4

  • SHA1

    960237e74a28393b0f906a46acffdb4d6160b763

  • SHA256

    51e9ccfd1c8ae13270052947f8dc6e3386c585bf733228a8dc0e028e1c31223f

  • SHA512

    b22237255cdcca7c9cdd1dd0664368a967b09ad672f57beb96891ab6abfd6bf4c2d7161f1f9e9bc468539811494c8fc1c6d6417c0b339c22fc90769addfa3bc0

Malware Config

Targets

    • Target

      installer.exe

    • Size

      2.7MB

    • MD5

      a9a3893285e274d60a9bb5b85f4dfcc4

    • SHA1

      960237e74a28393b0f906a46acffdb4d6160b763

    • SHA256

      51e9ccfd1c8ae13270052947f8dc6e3386c585bf733228a8dc0e028e1c31223f

    • SHA512

      b22237255cdcca7c9cdd1dd0664368a967b09ad672f57beb96891ab6abfd6bf4c2d7161f1f9e9bc468539811494c8fc1c6d6417c0b339c22fc90769addfa3bc0

    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

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

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

3
T1005

Tasks