Resubmissions

26/04/2024, 19:08

240426-xtafqaab7310

25/04/2024, 12:49

240425-p2pavaah6610

24/04/2024, 19:16

240424-xyt1xsfg5710

General

  • Target
    3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37
  • Size 263KB
  • Sample240426-xtafqaab73
  • SHA256 3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • smokeloader

Botnet
  • pub1

Extracted

Family
  • smokeloader

Version
  • 2022

C2
  • http://trad-einmyus.com/index.php

  • http://tradein-myus.com/index.php

  • http://trade-inmyus.com/index.php

rc4.i32
rc4.i32

Targets

    • Target
      3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37
    • Size 263KB
    • SHA256 3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37
    • MD5 SHA1 SHA512 SSDEEP
    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

    • Sets service image path in registry

    • Deletes itself

    • 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.

    • Registers COM server for autorun

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks installed software on the system

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

    • Legitimate hosting services abused for malware hosting/C2

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks