General

  • Target

    b798e76dd22b1f61ba7bd178e364ad95

  • Size

    144KB

  • Sample

    231222-re7vsafccm

  • MD5

    b798e76dd22b1f61ba7bd178e364ad95

  • SHA1

    427b95f004eb09a2411c3b5961e8e1a8f2340e3e

  • SHA256

    4cd3182dc7618704810c184fafdf84d5fdac614fbd9465c4c06090c10eb90043

  • SHA512

    307e40125aecc0243c0c312588532d0276dff8d5b17dbf8b6583f487e3409243915d490180183c8021f964db7692a369b6ea2a205cd3b48f376ec1708867926c

  • SSDEEP

    3072:RACY7QMEpchE7XrN+9b/I8x3eNR0E25lev:RwFhE77N+9b/I8n

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://varmisende.com/upload/

http://fernandomayol.com/upload/

http://nextlytm.com/upload/

http://people4jan.com/upload/

http://asfaltwerk.com/upload/

rc4.i32
rc4.i32

Targets

    • Target

      b798e76dd22b1f61ba7bd178e364ad95

    • Size

      144KB

    • MD5

      b798e76dd22b1f61ba7bd178e364ad95

    • SHA1

      427b95f004eb09a2411c3b5961e8e1a8f2340e3e

    • SHA256

      4cd3182dc7618704810c184fafdf84d5fdac614fbd9465c4c06090c10eb90043

    • SHA512

      307e40125aecc0243c0c312588532d0276dff8d5b17dbf8b6583f487e3409243915d490180183c8021f964db7692a369b6ea2a205cd3b48f376ec1708867926c

    • SSDEEP

      3072:RACY7QMEpchE7XrN+9b/I8x3eNR0E25lev:RwFhE77N+9b/I8n

    • 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.

    • 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