General

  • Target
    295b842a1a8473e51468fed24d1527cd.exe
  • Size 5.0MB
  • Sample210921-2h8xcsddfq
  • SHA256 093c40a96a55be0cc76dd3f234eebc8e66f453626f0d217fce4bb91d5e5afa5c
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • vidar

Version
  • 40.7

Botnet
  • 706

C2
  • https://petrenko96.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family
  • redline

Botnet
  • janesam

C2
  • 65.108.20.195:6774

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://varmisende.com/upload/

  • http://fernandomayol.com/upload/

  • http://nextlytm.com/upload/

  • http://people4jan.com/upload/

  • http://asfaltwerk.com/upload/

rc4.i32
rc4.i32

Targets

    • Target
      295b842a1a8473e51468fed24d1527cd.exe
    • Size 5.0MB
    • SHA256 093c40a96a55be0cc76dd3f234eebc8e66f453626f0d217fce4bb91d5e5afa5c
    • MD5 SHA1 SHA512
    • 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

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01

      suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01

    • 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 Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

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

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • 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.

    • 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.

    • 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.

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks