The provided source material consists of technical analysis reports from a cybersecurity sandbox environment, specifically Falcon Sandbox © Hybrid Analysis. These reports focus on a file or URL submitted on February 3, 2020, analyzing a Windows 7 32-bit system. The data contains no information regarding free samples, promotional offers, no-cost product trials, brand freebies, or mail-in sample programs. Instead, the content focuses exclusively on identifying potential malicious indicators, unusual system behaviors, and specific MITRE ATT&CK techniques associated with the analyzed file.
Technical Analysis and Indicators
The source data highlights several specific indicators and behaviors detected during the analysis of the submitted file. These indicators are categorized by relevance and specific ATT&CK IDs, providing a technical breakdown of the file's capabilities.
Malicious Indicators and System Behavior
One primary indicator of potential malicious activity is the detection of "bot communication commands." This suggests the file may be capable of receiving instructions from a remote command and control server. The analysis notes a high relevance score (10/10) for a specific behavior linked to the ATT&CK technique T1094, which covers the creation of mutants or mutexes. Specifically, the file created the mutant object \Sessions\1\BaseNamedObjects\Local\InternetShortcutMutex. The presence of this specific mutex can indicate that the file is attempting to control access to internet shortcut resources or prevent multiple instances of itself from running.
Additionally, the analysis recorded script engine calls, indicating that wscript.exe (Windows Script Host) was utilized to create specific objects. These include:
- WScript.Shell.1.CreateObject
- Msxml2.ServerXMLHTTP.6.0.CreateObject
- ADODB.Stream.6.0.CreateObject
The use of ServerXMLHTTP and ADODB.Stream is commonly associated with downloading files from the internet or manipulating data streams, further supporting the theory of remote communication or payload retrieval.
ATT&CK Technique Detection
The reports reference specific MITRE ATT&CK techniques: * T1215 (Kernel Modules and Extensions): This technique was flagged with a relevance of 5/10. It suggests the file may attempt to reference or load unusual system modules, a common tactic for rootkits or drivers intended to gain deep system access. * T1094 (Custom Command and Control Protocol): As mentioned above, this technique is associated with the creation of the specific mutex and the indicators of bot communication.
Linguistic Analysis and Anomaly Detection
A significant portion of the source data consists of strings extracted from the file's memory. These strings appear to be randomly generated or constructed words, lacking semantic coherence. The analysis engine flagged specific "indicators" within these strings, such as "ntice," "trinka," "twitter," and "twitterboned."
Examples of extracted strings include: * "Marette hyacine liquored clodhead abnormalise thysanuran merry-smiling ridden maleness semicordated..." * "pseudodramatic lightish-blue nontextural Orfield Ilorin flaser full-manned quick-scenting..." * "electret cyanochroic suasions fosslfying starmonger blow-through mantologist outloved..."
These strings are not standard English phrases and appear to be "garbage text" or obfuscated data. The presence of the word "twitter" and variations like "twitterboned" in the context of malware analysis is often associated with "XOR" or "RC4" encryption keys. Malware authors frequently hide malicious code or configuration data by XORing it with a text string. The detection engine likely flagged these strings because they are used as keys to decrypt malicious functionality or network communication protocols.
Source Reliability and Context
The source of this data is a "Guest System" running Windows 7 Professional. The report is generated by Falcon Sandbox, a tool used for automated malware analysis. The reliability of the data is high within the context of technical threat detection; however, the data does not provide information about the specific file name, the distribution method (e.g., phishing email, drive-by download), or the ultimate payload intended by the malware author.
The data confirms that the file exhibits "Unusual Characteristics" and references "suspicious system modules." The file's behavior of creating a mutex and utilizing script engines to make network-related objects aligns with common tactics used by trojans and downloaders.
Conclusion
The provided source material is insufficient to produce a 2000-word article. Below is a factual summary based on available data.
The analysis of the submitted file indicates a high probability of malicious intent. The file exhibits behaviors consistent with the MITRE ATT&CK techniques T1094 (Custom Command and Control Protocol) and T1215 (Kernel Modules and Extensions). Key indicators include the creation of the mutex Local\InternetShortcutMutex and the utilization of wscript.exe to instantiate ServerXMLHTTP and ADODB.Stream objects, suggesting capabilities for remote communication and data transfer. Furthermore, the file contains extensive strings of nonsensical text, some of which include the keyword "twitter," which may serve as encryption keys for obfuscated malicious code. While the file demonstrates suspicious behavior, the source data does not contain information regarding consumer offers, free samples, or promotional programs.