General

  • Target

    NEAS.NEASNEAS1ef006bb0944d57bf596cd6aab1ddfb5da85aae577092c01b7ab3f465dbc9fcdexeexeexe_JC.exe

  • Size

    2.5MB

  • Sample

    231013-tvev2sbf5t

  • MD5

    1c005ad11650b463fbb2a3cd2429c422

  • SHA1

    283c41cdebe89bdb6c859f877fffd5448fa81c54

  • SHA256

    1ef006bb0944d57bf596cd6aab1ddfb5da85aae577092c01b7ab3f465dbc9fcd

  • SHA512

    95a59726f1c78272a010a16e701c2fb9ed30f7e3497505dc498d43ba8bb727555d9f9422a23ef2ef28fbe50b7a6679d0b7885b24c797427df640e2474c4b2ea8

  • SSDEEP

    24576:BkUpFxaQT/FTwvzSI15ZlA4B6UM8Mu2RcfCrkEh91UbHZJ5GaGl6HHSc/xfvvOoI:BdcETCp5FKfFM3XHHPAXRloP

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://wirtshauspost.at/tmp/

http://msktk.ru/tmp/

http://soetegem.com/tmp/

http://gromograd.ru/tmp/

http://talesofpirates.net/tmp/

rc4.i32
rc4.i32

Targets

    • Target

      NEAS.NEASNEAS1ef006bb0944d57bf596cd6aab1ddfb5da85aae577092c01b7ab3f465dbc9fcdexeexeexe_JC.exe

    • Size

      2.5MB

    • MD5

      1c005ad11650b463fbb2a3cd2429c422

    • SHA1

      283c41cdebe89bdb6c859f877fffd5448fa81c54

    • SHA256

      1ef006bb0944d57bf596cd6aab1ddfb5da85aae577092c01b7ab3f465dbc9fcd

    • SHA512

      95a59726f1c78272a010a16e701c2fb9ed30f7e3497505dc498d43ba8bb727555d9f9422a23ef2ef28fbe50b7a6679d0b7885b24c797427df640e2474c4b2ea8

    • SSDEEP

      24576:BkUpFxaQT/FTwvzSI15ZlA4B6UM8Mu2RcfCrkEh91UbHZJ5GaGl6HHSc/xfvvOoI:BdcETCp5FKfFM3XHHPAXRloP

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • 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.

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v15

Tasks