General

  • Target

    https://cdn.discordapp.com/attachments/1206863601407762482/1206864656828735528/release_v3.rar?ex=65dd8f4c&is=65cb1a4c&hm=5d578283294fd5a8ebb586569510f7dc1ea2ca3372a01725b0f581896a79ec6b&?uel=Download_Artic_X.zip

  • Sample

    240213-y1qlysab56

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Extracted

Family

stealc

C2

http://185.172.128.24

Attributes
  • url_path

    /f993692117a3fda2.php

Extracted

Family

smokeloader

Botnet

pub3

Extracted

Family

risepro

C2

193.233.132.62

Extracted

Family

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/index.php

rc4.plain

Targets

    • Target

      https://cdn.discordapp.com/attachments/1206863601407762482/1206864656828735528/release_v3.rar?ex=65dd8f4c&is=65cb1a4c&hm=5d578283294fd5a8ebb586569510f7dc1ea2ca3372a01725b0f581896a79ec6b&?uel=Download_Artic_X.zip

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Detect ZGRat V1

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • RisePro

      RisePro stealer is an infostealer distributed by PrivateLoader.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Stealc

      Stealc is an infostealer written in C++.

    • Tofsee

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

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • 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

    • Looks up external IP address via web service

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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks