General

  • Target
    ac001161492c123ed08aff6389716c8f.exe
  • Size 3.8MB
  • Sample210601-9wthwxyk8a
  • SHA256 652788bae486f6ef0ecadb2a951cd25da57d4f399ba77011745bae565cb7e762
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://ppcspb.com/upload/

  • http://mebbing.com/upload/

  • http://twcamel.com/upload/

  • http://howdycash.com/upload/

  • http://lahuertasonora.com/upload/

  • http://kpotiques.com/upload/

rc4.i32
rc4.i32

Targets

    • Target
      ac001161492c123ed08aff6389716c8f.exe
    • Size 3.8MB
    • SHA256 652788bae486f6ef0ecadb2a951cd25da57d4f399ba77011745bae565cb7e762
    • MD5 SHA1 SHA512
    • PlugX

      PlugX is a RAT (Remote Access Trojan) that has been around since 2008.

    • 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.

    • Checks for common network interception software

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

    • 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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks