Overview

overview

10

Static

static

3

4baf807e0a...18.exe

windows7-x64

10

4baf807e0a...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    4baf807e0a45c6cb7114dbc83a8d4a6d_JaffaCakes118
  • Size 165KB
  • Sample240715-2fbtvavene
  • SHA256 36bba2998433ee043a2bc8e08b3b40fa5baed04d89912f8706f2a62bae7fa260
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
expirobackdoorpersistence

Malware Config

Targets

    • Target
      4baf807e0a45c6cb7114dbc83a8d4a6d_JaffaCakes118
    • Size 165KB
    • SHA256 36bba2998433ee043a2bc8e08b3b40fa5baed04d89912f8706f2a62bae7fa260
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    expirobackdoorpersistence

    • Expiro, m0yv

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

      backdoorexpiro

    • Expiro payload

      backdoor

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

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

    • Modifies WinLogon

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks