General

  • Target

    YouTube Downloader.exe

  • Size

    19.2MB

  • Sample

    240527-thg5msag82

  • MD5

    3de2b0e95269fd8643941f88643abe2b

  • SHA1

    856ea03a4b130e43720360726acce7a83ce81fd9

  • SHA256

    61987705947fd84e24f1da0c395bdcb4dac414ca6af244b5d897259c05f000e6

  • SHA512

    4a12accfa9f713ffd2a493821b2abf51cc5f0a0c8a3bdd6364fafd878b6c3f73ded429ca5c33ba016d00bc5846ed166880c4c1182e7fa25a19ad80aa4998c1c1

  • SSDEEP

    393216:nrTl5q1+TtIiF0Y9Z8D8CcldlgdL/XEGjJQWiKQ1up5itIOX1SChOrNc/N:rbq1QtILa8DZcLlgdrXyBKMuWIgSiOrc

Malware Config

Extracted

Family

redline

Botnet

5664290451

C2

https://pastebin.com/raw/NgsUAPya

Targets

    • Target

      YouTube Downloader.exe

    • Size

      19.2MB

    • MD5

      3de2b0e95269fd8643941f88643abe2b

    • SHA1

      856ea03a4b130e43720360726acce7a83ce81fd9

    • SHA256

      61987705947fd84e24f1da0c395bdcb4dac414ca6af244b5d897259c05f000e6

    • SHA512

      4a12accfa9f713ffd2a493821b2abf51cc5f0a0c8a3bdd6364fafd878b6c3f73ded429ca5c33ba016d00bc5846ed166880c4c1182e7fa25a19ad80aa4998c1c1

    • SSDEEP

      393216:nrTl5q1+TtIiF0Y9Z8D8CcldlgdL/XEGjJQWiKQ1up5itIOX1SChOrNc/N:rbq1QtILa8DZcLlgdrXyBKMuWIgSiOrc

    • RedLine

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

    • RedLine payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

5
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Process Discovery

1
T1057

Remote System Discovery

1
T1018

Collection

Data from Local System

4
T1005

Command and Control

Web Service

1
T1102

Tasks