Full Report
Recent targets of the RedLine info-stealing malware include Russian businesses that are looking for cracked copies of corporate software, researchers say.
Analysis Summary
# Tool/Technique: RedLine Stealer
## Overview
RedLine is a well-known information-stealing malware distributed within a campaign targeting Russian businesses using unlicensed corporate software. Attackers disguise the malware as utility tools (activators/cracks) designed to bypass software licensing requirements.
## Technical Details
- Type: Malware family (Info-stealer)
- Platform: Likely Windows (implied by corporate software context and typical RedLine targets)
- Capabilities: Exfiltrates sensitive information from browsers and messengers, gathers system data, operates as a Malware-as-a-Service (MaaS).
- First Seen: Campaign noted to have started in January of this year (relative to the article's publication context).
## MITRE ATT&CK Mapping
*Note: Specific TTPs are inferred based on the known capabilities of RedLine Stealer.*
- T1552 - Credentials Access
- T1552.001 - Credentials from Password Stores
- T1552.003 - Local Session
- T1056 - Input Capture
- T1056.001 - Keylogging
- T1041 - Exfiltration Over C2 Channel
- (Inferred, as data exfiltration is core to an info-stealer)
## Functionality
### Core Capabilities
- Steals sensitive information stored in web browsers (e.g., saved passwords, cookies).
- Extracts data from messenger applications.
- Gathers detailed system information about the infected host and users.
- Functions as a commodity malware sold on underground forums.
### Advanced Features
- Disguised as tools necessary for bypassing corporate software licensing checks (social engineering aspect).
- Specifically targets organizations of Russian-speaking entrepreneurs automating business processes.
- Requires victims to disable security software (antivirus) for the "tool" to work.
## Indicators of Compromise
- File Hashes: N/A (Not provided in the text)
- File Names: N/A (Implied to be named relevant to activation/cracking tools)
- Registry Keys: N/A (Not provided in the text)
- Network Indicators: N/A (Specific C2 addresses not provided, but communication for exfiltration is expected)
- Behavioral Indicators: Attempts to disable antivirus services; execution of files disguised as software patchers or activators.
## Associated Threat Actors
- Developers/Administrators believed to include Maxim Rudometov (Identified and charged by US authorities).
- Unattributed attackers conducting the current campaign targeting Russian businesses.
## Detection Methods
- Signature-based detection: Known signatures for RedLine variations.
- Behavioral detection: Monitoring for processes attempting to dump browser data, access system configuration files, or disable security measures.
- YARA rules: Available for known RedLine variants.
## Mitigation Strategies
- Maintain up-to-date and active antivirus/endpoint protection solutions.
- Do not disable security software, especially when installing "cracks" or unlicensed utilities.
- Educate users, particularly accounting and business staff, about social engineering tactics involving pirated software utilities.
- Strict license management policies to avoid the desire to use unlicensed software.
## Related Tools/Techniques
- Other info-stealers (e.g., Vidar, Formbook).
- Social engineering techniques focused on software piracy/cracking distribution.