General

  • Target

    downloader.exe

  • Size

    1.0MB

  • Sample

    230521-kfbemsha48

  • MD5

    6305b20220755b9a530eab704f67be58

  • SHA1

    28f668327924ffd32f9b418df98003a5d676f84a

  • SHA256

    3b4540241597b22b4ef6b40669f7ab70dcf1cc3cd7150ca9d10208a763064852

  • SHA512

    833403a6ed0640f71ed9fdc6712f77d25b99ca8d4d8e3f0e6b9ae932f961d4dc5a6396e75909e1aeb6802c6b70f2c942b5bc394078813606bc10b75f31afaaae

  • SSDEEP

    24576:5yMgyQKhKPfVClqKAHwWLTMczn1P6wafsfVsZiUTDf0sS5Az:sMPhKPfVClqKAHwWLQsncw5fVslTDzSu

Malware Config

Extracted

Family

redline

Botnet

diza

C2

185.161.248.37:4138

Attributes
  • auth_value

    0d09b419c8bc967f91c68be4a17e92ee

Targets

    • Target

      downloader.exe

    • Size

      1.0MB

    • MD5

      6305b20220755b9a530eab704f67be58

    • SHA1

      28f668327924ffd32f9b418df98003a5d676f84a

    • SHA256

      3b4540241597b22b4ef6b40669f7ab70dcf1cc3cd7150ca9d10208a763064852

    • SHA512

      833403a6ed0640f71ed9fdc6712f77d25b99ca8d4d8e3f0e6b9ae932f961d4dc5a6396e75909e1aeb6802c6b70f2c942b5bc394078813606bc10b75f31afaaae

    • SSDEEP

      24576:5yMgyQKhKPfVClqKAHwWLTMczn1P6wafsfVsZiUTDf0sS5Az:sMPhKPfVClqKAHwWLQsncw5fVslTDzSu

    • 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

    • 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