General

  • Target

    833682705b0dc7c480be2dc7e98b20cf.exe

  • Size

    318KB

  • Sample

    211204-hh37bsaecr

  • MD5

    833682705b0dc7c480be2dc7e98b20cf

  • SHA1

    142330907324d6435ccf85e5805b790bab84244a

  • SHA256

    23120d4fa41b881f5bc7e9806d693702f719e5f7e44b06b5d6f3a325ec9f3e97

  • SHA512

    61f85463ddc01bdc786cb5f02be743075a1b6391313e784a2b3aa61303c897c7bff319f19ff76f6ae4aabb1f10c2c91626a45efed87fe1fed926449d67c4bc94

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://rcacademy.at/upload/

http://e-lanpengeonline.com/upload/

http://vjcmvz.cn/upload/

http://galala.ru/upload/

http://witra.ru/upload/

https://cinems.club/search.php

https://clothes.surf/search.php

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

redline

C2

92.255.76.197:38637

Extracted

Family

redline

Botnet

1

C2

45.9.20.59:46287

Targets

    • Target

      833682705b0dc7c480be2dc7e98b20cf.exe

    • Size

      318KB

    • MD5

      833682705b0dc7c480be2dc7e98b20cf

    • SHA1

      142330907324d6435ccf85e5805b790bab84244a

    • SHA256

      23120d4fa41b881f5bc7e9806d693702f719e5f7e44b06b5d6f3a325ec9f3e97

    • SHA512

      61f85463ddc01bdc786cb5f02be743075a1b6391313e784a2b3aa61303c897c7bff319f19ff76f6ae4aabb1f10c2c91626a45efed87fe1fed926449d67c4bc94

    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

    • RedLine

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

    • RedLine Payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • suricata: ET MALWARE Arechclient2 Backdoor CnC Init

      suricata: ET MALWARE Arechclient2 Backdoor CnC Init

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • suricata: ET MALWARE Windows dir Microsoft Windows DOS prompt command exit OUTBOUND

      suricata: ET MALWARE Windows dir Microsoft Windows DOS prompt command exit OUTBOUND

    • suricata: ET MALWARE Windows route Microsoft Windows DOS prompt command exit OUTBOUND

      suricata: ET MALWARE Windows route Microsoft Windows DOS prompt command exit OUTBOUND

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Deletes itself

    • Drops startup file

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks