General

  • Target
    a2330ba45df8bc98fc43386911fa3e3d.exe
  • Size 3.3MB
  • Sample210911-j29znaecfl
  • SHA256 c7ca056b4243185dc09bb3d0af624cf7db75928ea2314410007e1cf191c784e4
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • vidar

Version
  • 40.1

Botnet
  • 706

C2
  • https://eduarroma.tumblr.com/

Attributes
  • profile_id

    706

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

Extracted

Family
  • redline

Botnet
  • Norman33

C2
  • 195.19.92.158:28743

Extracted

Family
  • vidar

Version
  • 40.5

Botnet
  • 937

C2
  • https://gheorghip.tumblr.com/

Attributes
  • profile_id

    937

Extracted

Family
  • redline

Botnet
  • test

C2
  • 45.14.49.169:22411

Targets

    • Target
      a2330ba45df8bc98fc43386911fa3e3d.exe
    • Size 3.3MB
    • SHA256 c7ca056b4243185dc09bb3d0af624cf7db75928ea2314410007e1cf191c784e4
    • 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.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection 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