A Look at the Social Engineering Element of Spear Phishing Attacks

Guest blog courtesy of LevelBlue and written by David Balaban.

When you think of a cyberattack, you probably envision a sophisticated hacker behind a Matrix-esque screen actively penetrating networks with their technical prowess. However, the reality of many attacks is far more mundane.

A simple email with an innocent subject line, such as “Missed delivery attempt,” sits in an employee’s spam folder. They open it absentmindedly, then enter their Office 365 credentials on the credible-looking login page that appears. In an instant, bad actors have free reign in the organization’s systems without breaking a sweat.

This example (which is all too realistic) highlights the massive threat spear phishing poses today. Rather than overt technical exploits, attackers leverage social engineering techniques that tap into the weaknesses of the human psyche. Meticulously crafted emails bypass even the most secure perimeter defenses by manipulating users into voluntarily enabling access.

In this blog, I will analyze attackers’ real-world techniques to exploit our weak spots and pain points. I will also show just how much more elaborate these hacking attempts can be compared to the typical phishing attacks that many of us have become accustomed to. That way, you can recognize and resist spear phishing attempts that leverage psychological triggers against you.

Anatomy of a Spear Phishing Hoax

Before analyzing the specifics of social engineering, let’s level set on what defines a spear phishing attack.

With that foundation set, let’s examine how spear phishers socially engineer their attacks to exploit human vulnerabilities with frightening success.

#1: They Leverage the Human Desire to Be Helpful

Human beings have an innate desire to be perceived as helpful. When someone asks you for a favor, your first instinct is likely wanting to say yes rather than second-guess them.

Spear phishers exploit this trait by crafting emails that make requests sound reasonable and essential. Even just starting an email with “I hope you can help me with...” triggers reciprocity bias that increases vulnerability to attack. Let’s take a look at an example:

Subject: URGENT Support Needed

Email Body: “Hi Amanda, I’m reaching out because I need your help, please. I’m currently out of office and having issues accessing invoices. Do you mind sending me over the 2 most recent invoices we received? I need to send them out by end of day. Sorry for the urgent request! Please let me know. Thanks, Sarah”.

This email pulls together four highly effective social engineering triggers:

When faced with a politely worded request for help that seems time-sensitive, many will comply without considering potential risks. This allows spear phishers to gather sensitive data or get victims to click dodgy links quite easily.

#2: They Manufacture Authority

Human psychology is strongly conditioned to defer to authority figures. When someone in leadership asks you to do something, you likely just execute without asking many questions.

Spear phishing attacks often take advantage of this tendency by assuming a position of authority. They spoof executive names, manager titles, administrator accounts, or roles like HR that give directions, making victims far more likely to instantly comply with requests. Here are some examples:

Positioning the sender as influential causes targets to lower their guard and engage without skepticism. Rather than evaluating critically, victims find themselves moving quickly to avoid disappointing the people upstairs.

#3: They Create Illusions of Trust

The principle of social proof states that if other people trust something, we are more likely to trust it too. Spear phishing once again takes advantage of this by building illusions that it is trustworthy through recognizable details.

Instead of coming from totally unknown or random accounts, spear phishing emails will often spoof:

The tiny familiar details make the sketchy emails feel authentic rather than random, which opens victims up to manipulation using other social engineering techniques.

For instance, an email that pretends to be from a known contact asking you to download a document would trigger almost no scrutiny. The supposed trust earns clicks without critical thought, allowing malware and malicious links to penetrate environments more easily.

#4: They Spark Strong Emotions

Spear phishing emails often try to spark strong emotions that override your logical thinking. Your ability to evaluate situations greatly decreases when you feel urgent excitement or anger. The attackers will use words that tap into emotions like:

The objective is to make us react from the gut rather than carefully analyze what’s happening. But if you’ve been made aware of these psychological tricks, you can catch yourself in the moment. Just take a beat to consider why certain emails spark strong feelings and whether someone wants you to click without thinking. Staying aware of emotional triggers helps avoid careless errors down the line.

#5: They Exploit Human Sloth

Here’s an unfortunate truth about human nature – we like to expend as little effort as possible. Chances are you don’t thoroughly verify every work email that hits your inbox. It takes a good deal of time and effort when you’re trying to power through tasks.

Spear phishing piggybacks on this tendency for laziness and mental shortcuts. In contrast to overly complex attacks, they present simple calls to action:

When there are no conspicuous red flags, most users fall prey to lazy thinking. Effortlessly clicking links seems easier than scrutinizing sender details, evaluating URLs, or opening documents safely.

This willingness to take the easy path of least resistance plays perfectly into spear phishers’ hands. They want recipients to act quickly without too much thought or effort. Catching people when they’re cognitively lazy is the most reliable way to succeed.

Final Word

While standard phishing attacks are already a big enough headache to deal with, spear phishing takes it one step further by incorporating some clever social engineering tactics to try and fool people into taking action. While anyone could fall for these tricks, vigilance and awareness are the best defense against them. Now that you know the telltale signs and the tactics that these malefactors use, you will be better equipped to spot the attack if you ever find yourself on the receiving end of one.