General

  • Target

    bbd42165fc7bd693cf338c6e1ab0d962727cd8d58cbf9effff3036994db895fc

  • Size

    311KB

  • Sample

    240111-twgq2abbhk

  • MD5

    f82f1ffb0d25ac3da34e40c4b9b7a98a

  • SHA1

    e7394070f344a47762f4db7569b3bf7f80ea2a59

  • SHA256

    bbd42165fc7bd693cf338c6e1ab0d962727cd8d58cbf9effff3036994db895fc

  • SHA512

    6f9fb098f2be54c36865ac6428472810031a2d66db91e36be412d3766cb7d5349762190b84e700dcd6a92722a8633f7c24d696358c1bb4aaddd94d511d6627cc

  • SSDEEP

    3072:U8EGKLRYBvIZxOr9tscc50CxPNh4DwU+C1Gr15sEI3pDwFwj0:UljLRlZAtsd50MP4E5q93n

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

      bbd42165fc7bd693cf338c6e1ab0d962727cd8d58cbf9effff3036994db895fc

    • Size

      311KB

    • MD5

      f82f1ffb0d25ac3da34e40c4b9b7a98a

    • SHA1

      e7394070f344a47762f4db7569b3bf7f80ea2a59

    • SHA256

      bbd42165fc7bd693cf338c6e1ab0d962727cd8d58cbf9effff3036994db895fc

    • SHA512

      6f9fb098f2be54c36865ac6428472810031a2d66db91e36be412d3766cb7d5349762190b84e700dcd6a92722a8633f7c24d696358c1bb4aaddd94d511d6627cc

    • SSDEEP

      3072:U8EGKLRYBvIZxOr9tscc50CxPNh4DwU+C1Gr15sEI3pDwFwj0:UljLRlZAtsd50MP4E5q93n

    • 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