General

  • Target

    http://google.com

  • Sample

    230402-ejwbbsee49

Malware Config

Extracted

Family

redline

C2

185.186.142.127:17355

Attributes
  • auth_value

    a9e87b449f0e3cd5789598a4d31d4eb0

Targets

    • Target

      http://google.com

    • RedLine

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

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Modifies Installed Components in the registry

    • Sets file execution options in registry

    • 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.

    • Registers COM server for autorun

    • 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.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • 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.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

4
T1060

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

6
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

6
T1012

System Information Discovery

6
T1082

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks