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Mobile and Malware Forensics

Practise Computer Hacking Forensic Investigator CHFI Mobile and Malware Forensics practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.

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What to know about Mobile and Malware Forensics

Mobile and Malware Forensics questions test whether you can apply the concept in context, not just recognise a definition.

How the topic appears in realistic exam-style scenarios.

Which detail in the question changes the correct answer.

How to eliminate plausible but wrong options.

How to connect the question back to the wider exam objective.

Watch out for

Common Mobile and Malware Forensics exam traps

  • Answering from memory before reading the full scenario.
  • Missing a constraint such as cost, availability, security, scope or command context.
  • Choosing a broad answer when the question asks for the most specific fix.
  • Ignoring why the wrong options are tempting.

Question index

All Mobile and Malware Forensics questions (42)

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1

A malware analyst is performing dynamic analysis of a trojan. Which THREE of the following tools are commonly used to monitor system changes during execution?

Hard
2

A forensic analyst is examining a malware sample that uses packing to obfuscate its code. Which static analysis tool is BEST suited to identify the packer used and potentially unpack the executable?

Hard
3

During a mobile forensic investigation of an iPhone, an examiner needs to recover deleted SMS messages. Which acquisition method provides the highest likelihood of retrieving deleted data from the device's flash memory?

Easy
4

During dynamic analysis of a malware sample in a sandbox, an analyst observes the following behaviours: (1) A file is created at C:\Windows\System32\drivers\etc\hosts, (2) A registry key is set at HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UpdateSvc, (3) Outbound TCP connections to 198.51.100.10 on port 8080. Which THREE of the following IoCs are MOST relevant to share with the threat intelligence team?

Hard
5

An investigator recovers a suspicious file from a compromised system. Using PEiD, the file is detected as 'UPX 0.89.6 - 1.02 / 1.05 - 1.24'. What is the MOST appropriate next step in the analysis?

Medium
6

During an iOS forensics investigation, an examiner extracts an iTunes backup and finds the SQLite database files. Which TWO of the following databases are LEAST likely to contain forensically relevant artefacts for a communication analysis?

Medium
7

In mobile forensics, which acquisition method preserves the highest level of data integrity and captures the most data from an iOS device?

Easy
8

In an iOS forensic examination, an analyst extracts an encrypted iTunes backup. The backup contains a file named 'manifest.plist' which lists the backup version and encryption state. Which tool is specifically designed to brute-force the backup password using GPU acceleration?

Hard
9

An incident responder receives an alert that a workstation is beaconing to a known malicious IP address. The responder captures network traffic and analyzes it with Wireshark. Which of the following would be an immediate indicator of compromise (IoC) visible in the traffic capture?

Medium
10

An incident responder analyzes a compromised system and finds evidence of timestomping: the Modified timestamp of a malicious DLL is earlier than the Creation timestamp. Additionally, the DLL is encrypted with an XOR key. Which anti-forensic techniques are being employed?

Hard
11

During a mobile forensic investigation, an analyst uses Cellebrite UFED to extract data from a locked iOS device. The extraction successfully retrieves the device's passcode, call logs, SMS messages, and application data. Which extraction method did the analyst MOST likely use?

Medium
12

During a mobile forensic investigation, an examiner wants to recover deleted WhatsApp messages from an Android device. Which of the following artefacts should the examiner examine? (Select TWO.)

Medium
13

A malware analyst is performing static analysis on a packed executable. Which THREE techniques are effective for unpacking or analyzing packed malware? (Select THREE.)

Hard
14

During an iOS forensic examination, an analyst extracts an iTunes backup and finds the file '3d0d7e5fb2ce288813306e4d4636395e047a3d28'. Which type of data does this file typically contain?

Medium
15

An examiner is analyzing an Android device using Cellebrite UFED. The device is locked with a PIN, and the examiner has no PIN. Which acquisition type should the examiner attempt FIRST to maximize data recovery without destroying evidence?

Medium
16

Which TWO tools are commonly used for static analysis of malware binaries?

Medium
17

An Android forensic analyst connects a suspect device to their workstation and issues the command "adb backup -apk -shared -all -f backup.ab". Which type of acquisition is being performed?

Medium
18

During a malware analysis, an analyst runs a suspicious executable in a Cuckoo Sandbox and observes that the process creates a mutex named 'Global\XPSS-1.0.0' and writes a registry key under HKCU\Software\Microsoft\Windows\CurrentVersion\Run. What do these actions MOST likely indicate?

Medium
19

A forensic analyst is examining an Android device that has been factory reset. Which type of data is LEAST likely to be recoverable using forensic tools?

Hard
20

An Android phone is seized, and the forensic examiner needs to acquire the device in a forensically sound manner. The phone is running Android 12 and has USB debugging enabled. Which acquisition method provides the most complete data without physically modifying the device?

Easy
21

A forensic analyst is examining an Android device that was factory reset before seizure. Which Google account artefacts are MOST likely still recoverable from the device's storage?

Medium
22

During an iOS forensic examination of an iCloud backup, an analyst finds that the SQLite database files for the Health app are encrypted. Which component is MOST likely responsible for encrypting this data, and what is required to decrypt it?

Hard
23

A forensic examiner uses Oxygen Forensic Detective to acquire data from an Android device. The tool reports that it performed a 'full file system' extraction. Which of the following is a prerequisite for this type of extraction?

Medium
24

A forensic analyst is examining a Windows malware sample using static analysis. Which tool is BEST suited for viewing the PE header structure, including sections, imports, and exports?

Easy
25

In Android forensics, which of the following acquisition methods provides the most complete and forensically sound image of the device's internal storage?

Easy
26

During a mobile forensics investigation, an examiner needs to acquire data from an iPhone running iOS 14. Which of the following acquisition methods provides the MOST complete data extraction?

Easy
27

In Android forensics, which command is used to extract a full physical image of a device's flash memory over USB using the Android Debug Bridge (ADB)?

Easy
28

A forensic examiner is analyzing an Android device that has been factory reset. Which of the following artefacts is MOST likely to still be recoverable from the device's flash memory after a factory reset, assuming no overwrite has occurred?

Hard
29

A forensic investigator is analyzing a malware sample that appears to be packed. Using PEiD, the analyst detects an entropy value of 7.8 and the entry point section is named 'UPX0'. Which of the following tools should the analyst use NEXT to unpack the malware for static analysis?

Hard
30

Which mobile forensics tool is specifically designed for physical extraction of iOS devices, including bypassing passcodes and extracting full file system images?

Easy
31

A malware analyst is examining a suspicious Windows executable. Running 'strings' reveals references to 'C:\Windows\System32\drivers\etc\hosts' and IP addresses 185.130.5.21 and 192.168.1.1. Dynamic analysis in a sandbox shows the binary modifies the hosts file and creates a mutex named 'Global\Mtx_Update'. Which behavioral indicator is MOST clearly associated with persistence?

Hard
32

A security analyst observes a suspicious process creating multiple mutexes with names like 'XxX_12345' and 'XxX_67890' and making outbound connections to an IP address 185.130.5.1 on port 443. Which behavioral indicator is MOST consistent with malware communication?

Hard
33

During dynamic analysis of a suspected malware sample, an analyst observes the following behaviors: (1) The process creates a service named 'WindowsDefender' that starts automatically. (2) It writes an encrypted payload to the registry under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run. (3) It injects code into explorer.exe. (4) It attempts to resolve the domain 'malware-update.com'. (5) It creates a mutex named 'Global\MyMutex'. Which THREE behaviors are indicators of malware persistence? (Select THREE.)

Hard
34

An analyst is investigating a potential data breach on an Android device. Which TWO artefacts are MOST useful for determining which third-party apps were installed and used? (Select TWO.)

Medium
35

During dynamic analysis of a suspicious executable in Cuckoo Sandbox, the report shows that the process created a registry key under HKCU\Software\Microsoft\Windows\CurrentVersion\Run named 'WindowsUpdate' and dropped a file 'svchost.exe' in %AppData%. Which conclusion is MOST consistent with these indicators?

Hard
36

Which mobile forensic tool is commonly used to perform a physical extraction of an iOS device, including bypassing the lock screen on certain models?

Easy
37

During a mobile device investigation, an examiner needs to acquire the maximum amount of data from a locked iOS device without modifying it. Which acquisition type should be used?

Easy
38

A forensic analyst receives a mobile device that has been factory reset. Which of the following types of data is MOST likely to be recoverable using advanced forensic techniques?

Medium
39

Which of the following tools is designed specifically for dynamic analysis of malware by executing it in a controlled, isolated environment?

Easy
40

During an iOS forensic examination, an analyst extracts an iTunes backup and finds a file named 'SMS.db'. Which of the following tools is BEST suited to parse and analyze this SQLite database for SMS and iMessage content?

Medium
41

An Android device is seized as evidence. The screen is locked with a PIN. Which tool or method is MOST appropriate for acquiring a physical image of the device without bypassing the lock screen, assuming the device is rooted?

Medium
42

Which tool is specifically designed for performing physical extraction of iOS devices and is widely used by law enforcement for bypassing passcode restrictions on modern iPhones?

Easy

Frequently asked questions

What does the Mobile and Malware Forensics domain cover on the CHFI exam?
Mobile and Malware Forensics questions test whether you can apply the concept in context, not just recognise a definition.
How many questions are in this domain?
This page lists all 42 Mobile and Malware Forensics questions in the CHFI question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
What is the best way to practise this domain?
Start with a short focused session (10 questions) to identify gaps, then work through explanations. Repeat with a longer session once the weak areas feel solid.
Can I practise only Mobile and Malware Forensics questions?
Yes — the session launcher on this page filters questions to this domain only. Choose any session length for inline explanations and scoring.
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