General

  • Target

    b9c1b1fa7c7d72fbd7fb7e3ee7749b73da02b44db92e4a87dfadbaaff5f0137d.exe

  • Size

    4.2MB

  • Sample

    241119-w4tfxazhnj

  • MD5

    416cbb435775177c45aae15c3a0e1ff1

  • SHA1

    fe6c6d31ecb257273d77474eeae5ef2a1c4debed

  • SHA256

    b9c1b1fa7c7d72fbd7fb7e3ee7749b73da02b44db92e4a87dfadbaaff5f0137d

  • SHA512

    d4ad661bf3604e258cd8ccbdac13dc6c04f6ed86c2f9e48b5cb76f46c722744ffde417c06026e449ab9b6f0c1695aeb213d2fdfe2802850dddbac881c104c04b

  • SSDEEP

    98304:l5PBm/JegvH+mokBbmL7e9AMfpEWNl6pl4heOyydWmBL/uTu08e3m:nP8hTvemokBAZMsl4heLypuTu0j3m

Malware Config

Targets

    • Target

      b9c1b1fa7c7d72fbd7fb7e3ee7749b73da02b44db92e4a87dfadbaaff5f0137d.exe

    • Size

      4.2MB

    • MD5

      416cbb435775177c45aae15c3a0e1ff1

    • SHA1

      fe6c6d31ecb257273d77474eeae5ef2a1c4debed

    • SHA256

      b9c1b1fa7c7d72fbd7fb7e3ee7749b73da02b44db92e4a87dfadbaaff5f0137d

    • SHA512

      d4ad661bf3604e258cd8ccbdac13dc6c04f6ed86c2f9e48b5cb76f46c722744ffde417c06026e449ab9b6f0c1695aeb213d2fdfe2802850dddbac881c104c04b

    • SSDEEP

      98304:l5PBm/JegvH+mokBbmL7e9AMfpEWNl6pl4heOyydWmBL/uTu08e3m:nP8hTvemokBAZMsl4heLypuTu0j3m

    • 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