The Week in Review from Stamus Labs

Welcome to the weekly threat detection update report from Stamus Networks. Each week, you will receive this email with a summary of the updates.

Current Stamus Threat Intelligence (STI) release version: 1223

This week, in addition to daily ruleset and IOC updates, we provided Stamus Security Platform customers with the following improved defense(s):

New threat detection(s) added [1]: 0
Major changes to detections(s) [2]: 297
Updated threat detection(s) [3]: 297

Note: a "method" as referenced below, is a discrete detection vector for a given threat.

Major Detection Changes

The following detections for Stamus Security Platform (SSP) were updated this past week with changes to kill chain phase(s) or MITRE ATT&CK tactic(s)/technique(s):

Android Trojan Agent (Trojan)

Adware malware family monetizes through advertising, installing new adware to display more ads. Trojans can gain root privileges and hide in system folder, making them hard to remove.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): delivery, command and control, actions on objectives
MITRE ATT&CK added: T1071
Previously existing MITRE ATT&CK: T1041
Methods added: 1

Emmenhtal Loader (Loader)

A shortcut file triggers a chain of events, leading to the execution of malicious PowerShell scripts, including the downloading and running of Infostealers like CryptBot or Lumma stealer.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control, delivery
Methods added: 9

Fake Browser (Trojan)

Attackers infect enterprise networks with malware by promoting fake browser updates on hacked websites, leading to the installation of banking trojans and later ransomware encryption on compromised networks.

Added kill chain phase(s): exploitation
Previously supported kill chain phase(s): delivery, exploitation, command and control
MITRE ATT&CK added: T1189
Previously existing MITRE ATT&CK: T1071, T1189
Methods added: 44

LandUpdate808 (Trojan)

Fake update variants like SocGholish, Clear Fake, Smart Ape, and ClickFix are being tracked by a collaboration introducing the LandUpdate808 Fake Update Variant.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): delivery, command and control
MITRE ATT&CK added: T1189
Previously existing MITRE ATT&CK: T1189
Methods added: 6

Lumma (Data Theft)

Lumma is a C-based information stealer sold on Russian underground forums and Telegram by LummaC since August 2022. It targets cryptocurrency wallets and has file grabber capabilities.

Added kill chain phase(s): command and control, actions on objectives
Previously supported kill chain phase(s): actions on objectives, command and control, installation, delivery
MITRE ATT&CK added: T1071
Previously existing MITRE ATT&CK: T1005, T1071, T1573
Methods added: 130

Malicious DGA Domain (Generic CnC)

Malicious domains are used by threat actors for malware spreading and phishing. C2 servers are established worldwide to evade detection. DGA generates domain names for command and control, challenging security professionals. Stamus Networks offers specialized detection methods.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control
Methods added: 22

Molerats (APT)

The politically-motivated threat group Molerats has been active since 2012 targeting victims in the Middle East, Europe, and the US according to reports by MITRE.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control, delivery
Methods added: 3

RAT Generic (RAT)

Remote Access Trojans allow covert surveillance and unauthorized access to victim PCs, collecting data like keystrokes and screenshots. They differ from keyloggers by enabling remote access for attackers.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): installation, command and control, actions on objectives, delivery
MITRE ATT&CK added: T1573
Previously existing MITRE ATT&CK: T1071, T1041, T1573
Methods added: 5

SocGholish (Social Engineering)

Malwarebytes found a new social engineering toolkit that uses compromised websites to perform advanced fingerprinting checks and deliver the NetSupport RAT payload.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control, exploitation, delivery, reconnaissance, actions on objectives
MITRE ATT&CK added: T1189, T1071
Previously existing MITRE ATT&CK: T1071, T1027, T1189
Methods added: 14

TA582 (APT)

An APT is a stealthy threat actor, often nation state or state-sponsored, gaining unauthorized access and remaining undetected in a network for political or economic reasons, targeting various sectors.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control
Methods added: 28

XWorm (RAT)

Cyble research labs found a malware developer advertising a powerful Windows RAT on the dark web during a threat-hunting exercise.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control, delivery
MITRE ATT&CK added: T1573
Previously existing MITRE ATT&CK: T1071, T1573
Methods added: 35

Other Threat Detection Update(s)

The following threat detection(s) were improved this past week with new or updated threat methods.

Name of threat	New coverage			Total coverage			Last updated
	New Detection methods	Kill chain phases	Protocols involved	Detection methods	Kill chain phases	Protocols involved
Android Trojan Agent	1	command and control	http	223	actions on objectives, command and control, delivery	dns, http, tcp, tls	2024-12-06
Emmenhtal Loader	9	command and control	dns, tls, http	80	command and control, delivery	dns, http, tls	2024-12-05
Fake Browser	44	exploitation	dns, tls, http	1216	command and control, delivery, exploitation	dns, http, tls	2024-12-07
LandUpdate808	6	command and control	dns, tls, http	80	command and control, delivery	dns, http, tls	2024-12-07
Lumma	130	command and control, actions on objectives	dns, tls, http	3037	actions on objectives, command and control, delivery, installation	dns, http, tls	2024-12-06
Malicious DGA Domain	22	command and control	http, tls	118	command and control	http, tls	2024-12-03
Molerats	3	command and control	dns, tls, http	273	command and control, delivery	dns, http, tcp, tls	2024-12-05
RAT Generic	5	command and control	tcp	185	actions on objectives, command and control, delivery, installation	dns, http, tcp, tcp-pkt, tls, udp	2024-12-06
SocGholish	14	command and control	dns, tls, http	1173	actions on objectives, command and control, delivery, exploitation, reconnaissance	dns, http, tcp, tcp-pkt, tls	2024-12-06
TA582	28	command and control	dns, http, tls	510	command and control	dns, http, tls	2024-12-06
XWorm	35	command and control	tcp-pkt	1958	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2024-12-06

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