General

  • Target

    b9c7eed7f539a7a12d747625f258532860b2a796c2b8845a5d398830680953dd.exe

  • Size

    635KB

  • Sample

    250107-p9npaaskfv

  • MD5

    9111267bdd481f1ed05fdb0a94e860d1

  • SHA1

    4cc59ff0aa72e90b4573b84d4dd130865f98b31f

  • SHA256

    b9c7eed7f539a7a12d747625f258532860b2a796c2b8845a5d398830680953dd

  • SHA512

    9af057c08f5396bb7404b51a8cb2c548c5d0108e9012e5139f0572b3c82662795089bccd0acbe50cf99b555d6dd98fd108185d93725b1eb787336709284d21cf

  • SSDEEP

    12288:WDB+kxedc++Zvwx4jZVvPr+WmCqeDkqZ7K0Y7hbMT:WDB+kxeqPZvwujZVn8eDhXYNbS

Malware Config

Targets

    • Target

      b9c7eed7f539a7a12d747625f258532860b2a796c2b8845a5d398830680953dd.exe

    • Size

      635KB

    • MD5

      9111267bdd481f1ed05fdb0a94e860d1

    • SHA1

      4cc59ff0aa72e90b4573b84d4dd130865f98b31f

    • SHA256

      b9c7eed7f539a7a12d747625f258532860b2a796c2b8845a5d398830680953dd

    • SHA512

      9af057c08f5396bb7404b51a8cb2c548c5d0108e9012e5139f0572b3c82662795089bccd0acbe50cf99b555d6dd98fd108185d93725b1eb787336709284d21cf

    • SSDEEP

      12288:WDB+kxedc++Zvwx4jZVvPr+WmCqeDkqZ7K0Y7hbMT:WDB+kxeqPZvwujZVn8eDhXYNbS

    • Expiro family

    • Expiro, m0yv

      Expiro aka m0yv is a multi-functional backdoor written in C++.

    • Expiro payload

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Windows security modification

    • Checks installed software on the system

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

    • Drops Chrome extension

    • Enumerates connected drives

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks