General

  • Target
    D44D77232A9E6E684F1ECE4C9C05B3DCB63D4296CFD29.exe
  • Size 2.5MB
  • Sample211005-q892kaacbk
  • SHA256 d44d77232a9e6e684f1ece4c9c05b3dcb63d4296cfd29b0951b0100caedfb0d6
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • vidar

Version
  • 39.6

Botnet
  • 933

C2
  • https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    933

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://conceitosseg.com/upload/

  • http://integrasidata.com/upload/

  • http://ozentekstil.com/upload/

  • http://finbelportal.com/upload/

  • http://telanganadigital.com/upload/

  • http://fiskahlilian16.top/

  • http://paishancho17.top/

  • http://ydiannetter18.top/

  • http://azarehanelle19.top/

  • http://quericeriant20.top/

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

Extracted

Family
  • redline

Botnet
  • First BUILD

C2
  • asyndenera.xyz:15667

Targets

    • Target
      D44D77232A9E6E684F1ECE4C9C05B3DCB63D4296CFD29.exe
    • Size 2.5MB
    • SHA256 d44d77232a9e6e684f1ece4c9c05b3dcb63d4296cfd29b0951b0100caedfb0d6
    • MD5 SHA1 SHA512
    • Arkei

      Arkei is an infostealer written in C++.

    • Modifies Windows Defender Real-time Protection settings

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • 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.

    • Socelars

      Socelars is an infostealer targeting browser cookies and credit card credentials.

    • Socelars Payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Generic Password Stealer User Agent Detected (RookIE)

      suricata: ET MALWARE Generic Password Stealer User Agent Detected (RookIE)

    • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • Arkei Stealer Payload

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

    • Nirsoft

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Loads dropped DLL

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks