What We Do
How we do it
Resources
TRU INTELLIGENCE CENTER
Our Threat Response Unit (TRU) publishes security advisories, blogs, reports, industry publications and webinars based on its original research and the insights driven through proactive threat hunts.
View Threat Intelligence Resources →
SECURITY ADVISORIES
Jun 01, 2023
Critical Vulnerability in MOVEit Transfer
THE THREAT eSentire is aware of reports relating to the active exploitation of a currently unnamed vulnerability impacting Progress Software’s managed file transfer software MOVEit Transfer.…
Read More
View all Advisories →
Company
ABOUT ESENTIRE
About Us
eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 2000+ organizations in 80+ countries from known and unknown cyber threats. Founded in 2001, the company’s mission is to hunt, investigate and stop cyber threats before they become business disrupting events.
Read about how we got here
Leadership Work at eSentire
LATEST PRESS RELEASE
Mar 20, 2023
Exertis and eSentire Partner to Deliver 24/7 Multi-Signal MDR, Digital Forensics & IR Services and Exposure Management to Organisations Across the UK, Ireland, and Europe
Basingstoke, UK– 20 March, 2023. Leading technology distributor, Exertis, announced today that it has bolstered its cybersecurity services, adding eSentire, the Authority in Managed Detection and Response (MDR), to its Enterprise portfolio of offerings. eSentire’s award-winning, 24/7 multi-signal MDR, Digital Forensics & Incident Response (IR), and Exposure Management services will be available…
Read More
Partners
PARTNER PROGRAM
e3 Ecosystem
We provide sophisticated cybersecurity solutions for Managed Security Service Providers (MSSPs), Managed Service Providers (MSPs), and Value-Added Resellers (VARs). Find out why you should partner with eSentire, the Authority in Managed Detection and Response, today.
Learn more
ECOSYSTEM PARTNER RESOURCES
Apply to become an e3 ecosystem partner with eSentire, the Authority in Managed Detection and Response.
Login to the Partner Portal for resources and content for current partners.
Search
Resources
Security advisories — Feb 26, 2019

HelloFax Hancitor Campaign

2 minutes read
Speak With A Security Expert Now

The eSentire Threat Intelligence team is tracking a recently identified campaign delivering Hancitor malware through malicious “HelloFax” emails. This campaign leverages trusted cloud services for delivering malicious Microsoft Word documents to victims. If executed successfully, Hancitor results in the installation of additional malware such as banking trojans.

What we’re doing about it

What you should do about it

Additional information

HelloFax is an online fax service that allows users to send PDF documents as faxes or receive faxes as PDF documents via email.

Hancitor is a downloader that has been known to download and install a variety of other malware including banking trojans and ransomware. Although originally identified in 2014, Hancitor has remained popular amongst threat actors, and is actively maintained and modified.

Beginning on April 19, 2018, eSentire’s Security Operation Centre responded to multiple incidents associated with this threat. Observed emails include a link to one of several compromised domains hosting malicious Word documents on Google Drive. End users that download the file and enable macros will unwittingly be infected by the Hancitor downloader (see figure 1 for example). This is an active campaign; the attacker may institute additional compromised domains to carry out attacks.

Indicators

Sender Addresses:

Subject Lines:

Links to Malware Document (all resolve to 35.204.196.178* as of 2018-04-20):

Malware Document:

Command and Control Infrastructure:

Malware Analysis Notes

When the document macro is executed, it will inject malicious code into a svchost.exe process. The svchost.exe process will then reach out to the Hancitor Command and Control infrastructure to download a secondary payload. Recently observed secondary payloads for Hancitor have included the Pony Trojan and the Zeus Panda Banking Trojan.

[image src="/assets/9edbde9e29/HelloFax-Hancitor-Campaign-figure-1.jpg" id="1226" width="589" height="419" class="center ss-htmleditorfield-file image" title="HelloFax Hancitor Campaign figure 1"]

*eSentire is actively blocking observed Hancitor Command and Control infrastructure.

As the malicious Word documents are hosted using a trusted cloud service (IP 35.204.196.178 and Google Drive), it is not feasible to block these addresses at this time.

View Most Recent Blogs