Full Report
2025-05-08 • WithSecure • WithSecure • win.nitrogen Open article on Malpedia
Analysis Summary
The provided context only includes the title and source information for an article about a KeePass trojanization campaign ("KeePass trojanised in advanced malware campaign"). It does not contain the actual descriptive content required to populate the detailed TTP summary structure.
Therefore, the summary below is based **only on the implication of the title and the linked malware entry (`win.nitrogen`)**, assuming the campaign utilized the malware detailed in the Malpedia entry associated with that context, which is linked within the article metadata.
If the specific details of the `win.nitrogen` malware or the KeePass trojanization method were available in the full article text, they would replace the generic placeholders below.
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# Tool/Technique: win.nitrogen (Inferred from Context Entry)
## Overview
This entry summarizes information related to the `win.nitrogen` artifact, which was reportedly utilized in an advanced malware campaign involving the trojanization of the legitimate password manager KeePass. The purpose of the malware, in the context of this campaign, is likely targeted credential theft or espionage following initial infection via compromised software distribution.
## Technical Details
- Type: Malware family (Inferred)
- Platform: Windows (Inferred from "win." prefix)
- Capabilities: (Requires article context for specifics, but likely includes C2 communication, exfiltration, and persistence)
- First Seen: (Not available in context)
## MITRE ATT&CK Mapping
*Note: Specific mappings for `win.nitrogen` require the full article content. The following are common mappings for credential harvesting/Trojanization campaigns:*
- **TA0008 - Collection**
- T1003 - OS Credential Dumping
- T1555 - Credentials from Password Stores
- T1555.003 - Credentials from Password Stores: Credentials from Web Browsers
- **TA0003 - Persistence**
- T1547 - Boot or Logon Autostart Execution: Startup Folder
## Functionality
### Core Capabilities
- (Details pending analysis of the full article/Malpedia entry for `win.nitrogen`)
### Advanced Features
- Trojanization of legitimate software (KeePass) to bypass user trust mechanisms.
- (Other advanced features pending article context)
## Indicators of Compromise
*Note: No specific IOCs were provided in the summary context. These are placeholders reflective of typical malware campaigns.*
- File Hashes: [Unknown]
- File Names: [Likely related to the trojanized KeePass executable or dropper]
- Registry Keys: [Unknown]
- Network Indicators: [Unknown C2 addresses, defanged]
- Behavioral Indicators: [Injection into legitimate processes, file modification in user application data]
## Associated Threat Actors
- (Unknown based on context, but implied association with actors capable of sophisticated supply-chain/trojanization attacks)
## Detection Methods
- [Signature-based detection on the specific `win.nitrogen` payloads]
- [Behavioral detection focused on modification of trusted binaries (KeePass) or unexpected network connections originating from those processes]
- [YARA rules for specific `win.nitrogen` strings or characteristics]
## Mitigation Strategies
- Strict software verification and use of official distribution channels for sensitive tools like KeePass.
- Application whitelisting to prevent execution of unauthorized or modified binaries.
- Endpoint detection and response (EDR) monitoring for process injection or unexpected file writes in legitimate application directories.
## Related Tools/Techniques
- Supply Chain Compromise techniques.
- Other legitimate software trojanization efforts.