Quick Answer
The correct answer is to capture NTLM hashes for offline cracking. This is because `samdump2` leverages the SYSTEM registry hive, which contains the boot key, to decrypt the SAM file and extract NTLM password hashes of local user accounts. Without the SYSTEM hive, the SAM file remains encrypted and unreadable; the tool essentially uses the boot key as a decryption key to reveal the stored hashes. On the CEH exam, this technique tests your understanding of post-exploitation hash extraction and offline password attacks, often appearing alongside tools like John the Ripper or Hashcat. A common trap is confusing this with live password dumping or keylogging—remember that `samdump2` is strictly for offline extraction from acquired files, not active memory. Memory tip: think “SAM + SYSTEM = NTLM hashes for cracking,” and recall that the SYSTEM hive holds the decryption key, not the passwords themselves.
This CEH practice question tests your understanding of enumeration and system hacking. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 penetration tester uses the following command to extract the contents of a SAM file: 'samdump2 SYSTEM /mnt/windows/Windows/System32/config/SAM'. What is the primary purpose of this action?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
To escalate privileges on the system
Why wrong: Privilege escalation occurs before hash extraction usually.
To enumerate users via LDAP
Why wrong: LDAP enumeration uses different tools.
To capture NTLM hashes for offline cracking
SAM file contains hashed passwords; extracting them allows offline cracking.
To perform a pass-the-hash attack
Why wrong: Pass-the-hash uses hashes directly for authentication, not just extraction.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
To capture NTLM hashes for offline cracking
The `samdump2` tool extracts password hash data from the SAM (Security Account Manager) registry hive file. By providing the SYSTEM hive (which contains the boot key) and the SAM file, the tool decrypts and dumps the NTLM hashes of local user accounts. These hashes can then be used in offline cracking attacks (e.g., with John the Ripper or Hashcat) to recover plaintext passwords, making option C correct.
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.
To escalate privileges on the system
Why it's wrong here
Privilege escalation occurs before hash extraction usually.
To enumerate users via LDAP
Why it's wrong here
LDAP enumeration uses different tools.
To capture NTLM hashes for offline cracking
Why this is correct
SAM file contains hashed passwords; extracting them allows offline cracking.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
To perform a pass-the-hash attack
Why it's wrong here
Pass-the-hash uses hashes directly for authentication, not just extraction.
Common exam traps
The trap here is that candidates may confuse the purpose of dumping hashes (offline cracking) with the subsequent attack technique (pass-the-hash), but the question asks for the primary purpose of the `samdump2` command itself, which is hash extraction for cracking, not immediate authentication.
Detailed technical explanation
The SAM file stores password hashes in a weakly obfuscated form, encrypted using the RC4 algorithm with a key derived from the SYSTEM hive's boot key. `samdump2` automates the decryption by reading the `SysKey` from the SYSTEM registry file and then extracting the LM and NTLM hashes. In a real-world scenario, after gaining local admin access to a Windows machine, a tester would copy the SAM and SYSTEM files (e.g., from `C:\Windows\System32\config`) and use `samdump2` on a Linux attack box to retrieve hashes for offline cracking, bypassing online brute-force rate limits.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.
What to study next
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FAQ
Enumeration and System Hacking — This question tests Enumeration and System Hacking — Read the scenario before looking for a memorised answer..
The correct answer is: To capture NTLM hashes for offline cracking — The `samdump2` tool extracts password hash data from the SAM (Security Account Manager) registry hive file. By providing the SYSTEM hive (which contains the boot key) and the SAM file, the tool decrypts and dumps the NTLM hashes of local user accounts. These hashes can then be used in offline cracking attacks (e.g., with John the Ripper or Hashcat) to recover plaintext passwords, making option C correct.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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