General

  • Target

    pdf-reader-plus.exe

  • Size

    1.0MB

  • Sample

    230518-nbehaaae59

  • MD5

    9e2242186ee3339f017e1b5b10c7b383

  • SHA1

    858f2ac6a2d03c316938816da430684ab05db923

  • SHA256

    6b4037a48d116b95097079a9abe02e5ef2dfad10eb1b6d6e3ab1fb8d056fe119

  • SHA512

    0f285656ed5576e9956a33908c2ada06eebd37ebaaf18babf69248752c521b799c76623049056105bc6eaf38ae093c1dba2d553e548f1f4f58ab3395bd88c245

  • SSDEEP

    24576:oyLQ9WL1sRn6UJ64wSYyzSTPvSM811d6xNHQ:vQWhssU9PivS91P6xNH

Malware Config

Extracted

Family

redline

Botnet

dream

C2

77.91.68.253:4138

Attributes
  • auth_value

    7b4f26a4ca794e30cee1032d5cb62f5c

Targets

    • Target

      pdf-reader-plus.exe

    • Size

      1.0MB

    • MD5

      9e2242186ee3339f017e1b5b10c7b383

    • SHA1

      858f2ac6a2d03c316938816da430684ab05db923

    • SHA256

      6b4037a48d116b95097079a9abe02e5ef2dfad10eb1b6d6e3ab1fb8d056fe119

    • SHA512

      0f285656ed5576e9956a33908c2ada06eebd37ebaaf18babf69248752c521b799c76623049056105bc6eaf38ae093c1dba2d553e548f1f4f58ab3395bd88c245

    • SSDEEP

      24576:oyLQ9WL1sRn6UJ64wSYyzSTPvSM811d6xNHQ:vQWhssU9PivS91P6xNH

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

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

    • RedLine payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Windows security modification

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks