General

  • Target

    4aac91073923ae6e169e5aa6ff9eaf3d69bb0d303f885fe1add127179f4b2bb1.exe

  • Size

    311KB

  • Sample

    240111-y3z86sgef5

  • MD5

    c8da7f06da12f671f1cdc889b5bdba19

  • SHA1

    20b286c649799fa16dea4224cd08ea6b9dd70635

  • SHA256

    4aac91073923ae6e169e5aa6ff9eaf3d69bb0d303f885fe1add127179f4b2bb1

  • SHA512

    e2ff104e9badc512ed50db13a8644ac2c39c417b105cf29909266e2d99904a30824b0a39eb61501d1d78cf52a5948a0efdc6b7d20077b34c4cabdf38e5075023

  • SSDEEP

    3072:kE8T6nLiwg/QecS9SSIFw3/qX6HKYHSOvl1+IUiXz+z405kyI3yAFwj0:BuSLiF/7cLFwv/lZSoT3yh

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Targets

    • Target

      4aac91073923ae6e169e5aa6ff9eaf3d69bb0d303f885fe1add127179f4b2bb1.exe

    • Size

      311KB

    • MD5

      c8da7f06da12f671f1cdc889b5bdba19

    • SHA1

      20b286c649799fa16dea4224cd08ea6b9dd70635

    • SHA256

      4aac91073923ae6e169e5aa6ff9eaf3d69bb0d303f885fe1add127179f4b2bb1

    • SHA512

      e2ff104e9badc512ed50db13a8644ac2c39c417b105cf29909266e2d99904a30824b0a39eb61501d1d78cf52a5948a0efdc6b7d20077b34c4cabdf38e5075023

    • SSDEEP

      3072:kE8T6nLiwg/QecS9SSIFw3/qX6HKYHSOvl1+IUiXz+z405kyI3yAFwj0:BuSLiF/7cLFwv/lZSoT3yh

    • BetaBot

      Beta Bot is a Trojan that infects computers and disables Antivirus.

    • Modifies firewall policy service

    • Modifies security service

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Disables taskbar notifications via registry modification

    • Disables use of System Restore points

    • Sets file execution options in registry

    • Sets service image path in registry

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks