General

  • Target

    551f32210e27aa3fa3ea6acb4c8cf8f393c632fc14054ed0eb7046436c8f39f6

  • Size

    624KB

  • Sample

    230604-ttzttsdc7z

  • MD5

    40cb9a378e2638bba65113098f64b083

  • SHA1

    d0061cc3b0f7a0cee92af9b3ecfb63dda16a44cd

  • SHA256

    551f32210e27aa3fa3ea6acb4c8cf8f393c632fc14054ed0eb7046436c8f39f6

  • SHA512

    89cb7b74123bb7724eefaecb2ad2bc27e5bf6461e641893437921b2ee0221b2cb988e979465ae996f35d23cb7e0060aacc9ed38bd270abc780408bcd7d8ee25a

  • SSDEEP

    12288:FMrfy903YyB34mS8jcAEjdrAGzUjfM6vT8kNK/pg+mQgG8Iz+sLZLv4O:SyuYw+8jcAcdr4xvFAxg+9gGzLZLQO

Malware Config

Extracted

Family

redline

Botnet

dusa

C2

83.97.73.126:19046

Attributes
  • auth_value

    ee896466545fedf9de5406175fb82de5

Extracted

Family

redline

Botnet

brain

C2

83.97.73.126:19046

Attributes
  • auth_value

    5fb8269baadec0c49899b9a7a0c8851f

Targets

    • Target

      551f32210e27aa3fa3ea6acb4c8cf8f393c632fc14054ed0eb7046436c8f39f6

    • Size

      624KB

    • MD5

      40cb9a378e2638bba65113098f64b083

    • SHA1

      d0061cc3b0f7a0cee92af9b3ecfb63dda16a44cd

    • SHA256

      551f32210e27aa3fa3ea6acb4c8cf8f393c632fc14054ed0eb7046436c8f39f6

    • SHA512

      89cb7b74123bb7724eefaecb2ad2bc27e5bf6461e641893437921b2ee0221b2cb988e979465ae996f35d23cb7e0060aacc9ed38bd270abc780408bcd7d8ee25a

    • SSDEEP

      12288:FMrfy903YyB34mS8jcAEjdrAGzUjfM6vT8kNK/pg+mQgG8Iz+sLZLv4O:SyuYw+8jcAcdr4xvFAxg+9gGzLZLQO

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

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

    • 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.

    • 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 Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

1
T1089

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Tasks