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: 1244

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]: 4 (Earth Minotaur, LiteHTTP Bot, XMRig Coinminer, CyberHaven Compromised Extension)
Major changes to detections(s) [2]: 239
Updated threat detection(s) [3]: 426

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

New Threat(s) Detected

The following detections were added to your Clear NDR this past week:

Earth Minotaur (APT)

Earth Minotaur uses instant messaging apps to trick victims into clicking malicious links, disguising themselves as various characters to increase success. The links lead to MOONSHINE exploit kit servers installing backdoors on devices.

Total number of detection methods: 2
Kill chain phase(s): delivery, exploitation
MITRE ATT&CK: T1189

LiteHTTP Bot (Botnet)

LiteHTTP bot is a new C# programmed HTTP bot that collects system information, downloads and executes programs, and can update or kill other bots on the system.

LiteHTTP Bot - Github | LiteHTTP Bot - anyrun |

Total number of detection methods: 3
Kill chain phase(s): command and control

XMRig Coinminer (Cryptocurrency)

XMRIG is a legitimate open-source app that mines Monero, but criminals use "bundling" to infiltrate systems without consent, often bringing other unwanted programs that gather information and deliver ads.

XMRig Coinminer - xmrig | XMRig Coinminer - SoC Prime |

Total number of detection methods: 3
Kill chain phase(s): command and control, installation
MITRE ATT&CK: T1496

CyberHaven Compromised Extension (Data Theft)

Cyberhaven's Chrome extension was breached, allowing attackers to inject malicious code, compromising sensitive data of 400,000 users. A threat campaign targeting 2.6 million users on the Chrome Web Store was exposed.

CyberHaven Compromised Extension - Reuters |

Total number of detection methods: 179
Kill chain phase(s): command and control

Major Detection Changes

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

ClickFix (Phishing)

In April 2024, researchers found compromised sites leading to an iframe on pley[.]es showing an error message. The payload domain was taken offline, preventing infection. Later, the iframe was replaced with the ClearFake inject.

Added kill chain phase(s): exploitation, delivery
Previously supported kill chain phase(s): exploitation, delivery, command and control
MITRE ATT&CK added: T1036
Previously existing MITRE ATT&CK: T1071, T1027, T1189
Methods added: 4

Ducktail Stealer (Data Theft)

Samples associated with the DUCKTAIL operation since late 2021 were written in .NET Core and compiled using its single file feature, bundling all dependencies into a single executable. This use of .NET Core in malware is uncommon.

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

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: 6

Keitaro (Phishing)

Cyber criminals exploited the TDS platform Keitaro to redirect users to malware exploit kits RIG and Fallout, infecting them with malicious software. Legitimate TDS platforms are used for targeted advertising.

Added kill chain phase(s): exploitation
Previously supported kill chain phase(s): exploitation, delivery, command and control
Methods added: 1

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: 12

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: 150

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
MITRE ATT&CK added: T1071
Previously existing MITRE ATT&CK: T1041, T1590, T1071, T1587
Methods added: 4

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: 1

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
Previously existing MITRE ATT&CK: T1071, T1027, T1189
Methods added: 6

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: 21

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: 29

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
ClickFix	4	exploitation, delivery	http	58	command and control, delivery, exploitation	dns, http, tls	2025-01-03
CyberHaven Compromised Extension	179	command and control	dns, tls, http	179	command and control	dns, tls, http	2025-01-06
Ducktail Stealer	5	command and control, actions on objectives	http	29	actions on objectives, command and control, delivery	dns, http, tls	2025-01-04
Earth Minotaur	2	delivery, exploitation	http	2	delivery, exploitation	http	2025-01-06
Fake Browser	6	exploitation	dns, tls, http	1299	command and control, delivery, exploitation	dns, http, tls	2024-12-31
Keitaro	1	exploitation	http	395	command and control, delivery, exploitation	dns, http, tls	2025-01-01
LandUpdate808	12	command and control	dns, tls, http	155	command and control, delivery	dns, http, tls	2025-01-04
LiteHTTP Bot	3	command and control	http	3	command and control	http	2025-01-06
Lumma	150	command and control, actions on objectives	dns, tls, http	3514	actions on objectives, command and control, delivery, installation	dns, http, tls	2025-01-04
Molerats	4	command and control	dns, tls, http	277	command and control, delivery	dns, http, tcp, tls	2025-01-04
RAT Generic	1	command and control	tcp	190	actions on objectives, command and control, delivery, installation	dns, http, tcp, tcp-pkt, tls, udp	2024-12-31
SocGholish	6	command and control	dns, tls, http	1212	actions on objectives, command and control, delivery, exploitation, reconnaissance	dns, http, tcp, tcp-pkt, tls	2025-01-03
TA582	21	command and control	dns, http, tls	643	command and control	dns, http, tls	2025-01-04
XMRig Coinminer	3	command and control, installation	tcp, http	3	command and control, installation	tcp, http	2025-01-06
XWorm	29	command and control	tcp-pkt	2090	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2025-01-04

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