This CC practice question tests your understanding of security operations. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A security operations center (SOC) analyst is investigating an alert about a user downloading a suspicious file. The analyst opens the file on a sandboxed virtual machine and observes that it attempts to modify registry keys and establish persistence. This type of analysis is known as:
Dynamic analysis
Running the sample in a sandbox to observe behavior is dynamic analysis.
Static analysis
Why wrong: Static analysis does not involve execution; it examines the binary.
Reverse engineering
Why wrong: Reverse engineering is a detailed static analysis of code structure.
Threat hunting
Why wrong: Threat hunting is proactive searching for threats, not analyzing a known sample.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Dynamic analysis
Dynamic analysis involves executing a suspicious file in a controlled environment, such as a sandboxed virtual machine, to observe its runtime behavior. In this scenario, the analyst runs the file and directly observes registry modifications and persistence mechanisms, which are characteristic of dynamic analysis. This approach captures actual system interactions that static analysis cannot reveal.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Dynamic analysis
Why this is correct
Running the sample in a sandbox to observe behavior is dynamic analysis.
Related concept
Read the scenario before looking for a memorised answer.
Static analysis
Why it's wrong here
Static analysis does not involve execution; it examines the binary.
Reverse engineering
Why it's wrong here
Reverse engineering is a detailed static analysis of code structure.
Threat hunting
Why it's wrong here
Threat hunting is proactive searching for threats, not analyzing a known sample.
Common exam traps
ISC2 often tests the distinction between dynamic and static analysis, and the trap here is that candidates may confuse 'reverse engineering' (which includes both static and dynamic methods) with the specific act of executing a file to observe behavior, leading them to select reverse engineering instead of the more precise dynamic analysis.
Detailed technical explanation
Under the hood, dynamic analysis leverages API monitoring tools (e.g., Process Monitor, API Monitor) to capture calls like RegSetValueExW for registry modifications and CreateProcess or CreateService for persistence. A subtle behavior is that some malware detects sandbox environments by checking for common artifacts (e.g., specific MAC addresses, small RAM, or the presence of analysis tools) and alters its behavior, which is why advanced sandboxes use hardware-assisted virtualization to remain transparent. In real-world SOC operations, dynamic analysis is critical for identifying zero-day exploits that evade signature-based detection.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
What to study next
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FAQ
Security Operations — This question tests Security Operations — Read the scenario before looking for a memorised answer..
The correct answer is: Dynamic analysis — Dynamic analysis involves executing a suspicious file in a controlled environment, such as a sandboxed virtual machine, to observe its runtime behavior. In this scenario, the analyst runs the file and directly observes registry modifications and persistence mechanisms, which are characteristic of dynamic analysis. This approach captures actual system interactions that static analysis cannot reveal.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
This CC practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CC exam.
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