General

  • Target

    7971ad20e117b347787bb55470bde1cfa814d6479c1ccc5767e2c935b507223dN.exe

  • Size

    635KB

  • Sample

    250108-cacfra1jfp

  • MD5

    79fe1ca4d124971e6b872d5d6acd25f0

  • SHA1

    eca06b23d460392695fbea380a6e4ed69ea14d55

  • SHA256

    7971ad20e117b347787bb55470bde1cfa814d6479c1ccc5767e2c935b507223d

  • SHA512

    7e37f5cff2d86b325d3acb44b1a6821c94a221a70fa9ac81369fd8b22aeea3df5e6e652ba46618f7b06393045b09e7d8c7c676334c14666f27b9c1a0cf2dcf61

  • SSDEEP

    12288:WDB+kxedc++Zvwx4jZVvPr+WmCqeDkqZ7K0Y7hbM:WDB+kxeqPZvwujZVn8eDhXYNb

Malware Config

Targets

    • Target

      7971ad20e117b347787bb55470bde1cfa814d6479c1ccc5767e2c935b507223dN.exe

    • Size

      635KB

    • MD5

      79fe1ca4d124971e6b872d5d6acd25f0

    • SHA1

      eca06b23d460392695fbea380a6e4ed69ea14d55

    • SHA256

      7971ad20e117b347787bb55470bde1cfa814d6479c1ccc5767e2c935b507223d

    • SHA512

      7e37f5cff2d86b325d3acb44b1a6821c94a221a70fa9ac81369fd8b22aeea3df5e6e652ba46618f7b06393045b09e7d8c7c676334c14666f27b9c1a0cf2dcf61

    • SSDEEP

      12288:WDB+kxedc++Zvwx4jZVvPr+WmCqeDkqZ7K0Y7hbM:WDB+kxeqPZvwujZVn8eDhXYNb

    • 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