General

  • Target

    Valyse Launcher.exe

  • Size

    9.8MB

  • Sample

    230407-y36qysae32

  • MD5

    0fd78804897c07936d54739b8e65fb49

  • SHA1

    ef8955ccb92b1d87e8553a01868da740dd1919f0

  • SHA256

    4205b5eddc13a65524ad26863ce048ca67ea2cca3bae20ddcc73d7cce926f8c7

  • SHA512

    1168e7dc5d013c2bde5d9f9394b6c14e47cb0c1e49915f0988632e19123148beb12a39a818d1fe1ab9c4042597c36b169c48acaee39a32e2dc2f0108146cffbc

  • SSDEEP

    196608:Yk9adX+cTGCxPQHirKfwNJeP3//hr98jdu6RubbKtgSebm:Yk9kJT7VpNm598xu64bbKt4

Malware Config

Targets

    • Target

      Valyse Launcher.exe

    • Size

      9.8MB

    • MD5

      0fd78804897c07936d54739b8e65fb49

    • SHA1

      ef8955ccb92b1d87e8553a01868da740dd1919f0

    • SHA256

      4205b5eddc13a65524ad26863ce048ca67ea2cca3bae20ddcc73d7cce926f8c7

    • SHA512

      1168e7dc5d013c2bde5d9f9394b6c14e47cb0c1e49915f0988632e19123148beb12a39a818d1fe1ab9c4042597c36b169c48acaee39a32e2dc2f0108146cffbc

    • SSDEEP

      196608:Yk9adX+cTGCxPQHirKfwNJeP3//hr98jdu6RubbKtgSebm:Yk9kJT7VpNm598xu64bbKt4

    • BazarBackdoor

      Stealthy backdoor targeting corporate networks, believed to be developed by Trickbot's authors.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Bazar/Team9 Backdoor payload

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Sets file execution options in registry

    • Sets service image path in registry

    • 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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Registers COM server for autorun

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Checks system information in the registry

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks