General

  • Target

    https://cdn.discordapp.com/attachments/1206142845950369826/1206143223504961546/file_v2.rar?ex=65daef69&is=65c87a69&hm=890896954e2a31d4f6c4fc458e2372168959ff5891f3c7002961835c53e29217&

  • Sample

    240211-vej1hahh2y

Malware Config

Extracted

Family

smokeloader

Botnet

pub3

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Extracted

Family

smokeloader

Version

2022

C2

http://selebration17io.io/index.php

http://vacantion18ffeu.cc/index.php

http://valarioulinity1.net/index.php

http://buriatiarutuhuob.net/index.php

http://cassiosssionunu.me/index.php

http://sulugilioiu19.net/index.php

http://goodfooggooftool.net/index.php

rc4.i32
rc4.i32

Extracted

Family

risepro

C2

193.233.132.49:50500

Targets

    • Target

      https://cdn.discordapp.com/attachments/1206142845950369826/1206143223504961546/file_v2.rar?ex=65daef69&is=65c87a69&hm=890896954e2a31d4f6c4fc458e2372168959ff5891f3c7002961835c53e29217&

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • RisePro

      RisePro stealer is an infostealer distributed by PrivateLoader.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

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

    • Creates new service(s)

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • 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

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks