General

  • Target

    JaffaCakes118_77dee8b1b368b860d694420325d37ddf

  • Size

    780KB

  • Sample

    250104-f24wvswpcl

  • MD5

    77dee8b1b368b860d694420325d37ddf

  • SHA1

    4056aa8fdcc535d39201429caef1364aac338bdf

  • SHA256

    f47ca6f4ac15343f6f087d6dcdda8729b403f65004c2a14944fa0a3ca839f79d

  • SHA512

    9325721e1482f544785dfceeeb61c37faedd406e40fc6d3ac8d2830499d805c20dcc93e7225f83ea3de831dba881ca06ea4f1d5befe4be0968be90af906e856c

  • SSDEEP

    12288:JJ7THB9DS/Eg8KWWBnUdtoThEkQOSxpqLlWanPk0xlASzSwtuAFIrH4W:bz/D/6BxmkDspqLlTnTxj5WrH4W

Malware Config

Targets

    • Target

      JaffaCakes118_77dee8b1b368b860d694420325d37ddf

    • Size

      780KB

    • MD5

      77dee8b1b368b860d694420325d37ddf

    • SHA1

      4056aa8fdcc535d39201429caef1364aac338bdf

    • SHA256

      f47ca6f4ac15343f6f087d6dcdda8729b403f65004c2a14944fa0a3ca839f79d

    • SHA512

      9325721e1482f544785dfceeeb61c37faedd406e40fc6d3ac8d2830499d805c20dcc93e7225f83ea3de831dba881ca06ea4f1d5befe4be0968be90af906e856c

    • SSDEEP

      12288:JJ7THB9DS/Eg8KWWBnUdtoThEkQOSxpqLlWanPk0xlASzSwtuAFIrH4W:bz/D/6BxmkDspqLlTnTxj5WrH4W

    • Expiro family

    • Expiro, m0yv

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

    • Expiro payload

    • Disables taskbar notifications via registry modification

    • 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