Overview

overview

10

Static

static

3

2026-10-01...at.exe

windows10-2004-x64

10

2026-10-01...at.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    2026-10-01_42ec916683fbb3f2ba651eacb99e3dc8_cryptbot_icedid_mespinoza_njrat
  • Size 2.7MB
  • Sample261002-tarn4svgmd
  • SHA256 2d304122ff8ffc3ab672d3bc328527525bff4b50b5223ae9f49f2053eea2f0a0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
expirobackdoorcredential_accessdefense_evasiondiscoverypersistencespywarestealertrojan

Malware Config

Targets

    • Target
      2026-10-01_42ec916683fbb3f2ba651eacb99e3dc8_cryptbot_icedid_mespinoza_njrat
    • Size 2.7MB
    • SHA256 2d304122ff8ffc3ab672d3bc328527525bff4b50b5223ae9f49f2053eea2f0a0
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoorcredential_accessdefense_evasiondiscoveryexpiropersistencespywarestealertrojan

    • Expiro payload

      backdoor

    • Family: Expiro, m0yv

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

      backdoorexpiro

    • Disables taskbar notifications via registry modification

      defense_evasion

    • Executes dropped EXE

    • Modifies system executable filetype association

      persistence

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

      credential_accessstealer

    • Windows security modification

      defense_evasiontrojan

    • Checks installed software on the system

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

      discovery

    • Enumerates connected drives

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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks