Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    file.exe
  • Size 187KB
  • Sample230119-vtn8rsdf2v
  • SHA256 a80e06ee22c8e2de0cdf1c8da1308dce4bb23bec725146b39bd5db4444bbf1e5
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
smokeloaderbackdoordiscoverypersistencetrojan

Malware Config

Targets

    • Target
      file.exe
    • Size 187KB
    • SHA256 a80e06ee22c8e2de0cdf1c8da1308dce4bb23bec725146b39bd5db4444bbf1e5
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    smokeloaderbackdoortrojandiscoverypersistence

    • Detects Smokeloader packer

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

      trojanbackdoorsmokeloader

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Sets DLL path for service in the registry

      persistence

    • Sets service image path in registry

      persistence

    • Loads dropped DLL

    • Checks installed software on the system

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

      discovery

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks