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: 1396

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]: 1 (NordDragonScan)
Major changes to detections(s) [2]: 222
Updated threat detection(s) [3]: 230

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 (formerly Stamus Security Platform) this past week:

NordDragonScan (Data Theft)

FortiGuard Labs discovered a delivery site hosting NordDragonScan infostealer. It collects data, captures screenshots, and sends information to a command-and-control server for further instructions and confirmation of victim's online status.

Total number of detection methods: 8
Kill chain phase(s): command and control, actions on objectives
MITRE ATT&CK: T1041

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):

ACR Stealer (Data Theft)

ACR Stealer is a Malware-as-a-Service offered by threat actor SheldIO on Russian cybercrime forums since March 2024, possibly related to a previous private stealer program.

Added kill chain phase(s): command and control, actions on objectives
Previously supported kill chain phase(s): command and control, actions on objectives
MITRE ATT&CK added: T1041
Previously existing MITRE ATT&CK: T1071
Methods added: 3

AgentTesla (Data Theft)

Agent Tesla is a spyware Trojan targeting Windows computers, written in the .NET framework, and first observed in 2014.

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

DarkCloud (Data Theft)

Info stealers are malware that collect data on an infected computer and send it to attackers. They steal information like credentials through various methods like keylogging or form grabbing.

Added kill chain phase(s): actions on objectives
Previously supported kill chain phase(s): actions on objectives
Methods added: 2

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: 4

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
MITRE ATT&CK added: T1189
Previously existing MITRE ATT&CK: T1189, T1071
Methods added: 9

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: 3

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: 54

NetSupport RAT (RAT)

Remote Access Trojans allow covert surveillance and unauthorized access to victim PCs, collecting keystrokes, passwords, screenshots, and more. They differ from keyloggers by providing remote access capabilities to attackers.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): actions on objectives, command and control, exploitation, installation
MITRE ATT&CK added: T1105
Previously existing MITRE ATT&CK: T1071, T1105
Methods added: 8

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: 21

TA399 (APT)

An APT is a sophisticated, long-term cyber-attack carried out by skilled threat actors with significant resources. Unlike short-lived attacks, APTs focus on sustained operation and specific objectives, often sponsored by nation-states or large criminal organizations.

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

TA4903 (APT)

Advanced persistent threats (APTs) are stealthy threat actors, often nation states or state-sponsored groups, who gain unauthorized access to networks for political or economic motivations, utilizing various tactics to remain undetected.

Added kill chain phase(s): delivery
Previously supported kill chain phase(s): delivery
Methods added: 3

Unknown APT (APT)

Sophisticated adversary with expertise and resources uses multiple attack vectors to establish presence in organizations' IT infrastructure, exfiltrate information, undermine missions, and persistently adapt to defenders.

Added kill chain phase(s): command and control
Previously supported kill chain phase(s): command and control, delivery
Methods added: 84

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: 27

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
ACR Stealer	3	command and control, actions on objectives	http	77	actions on objectives, command and control	dns, http, tls	2025-07-10
AgentTesla	1	actions on objectives	tcp-pkt	53	actions on objectives, command and control, delivery	dns, ftp, http, smtp, tcp, tcp-pkt, tls	2025-07-11
DarkCloud	2	actions on objectives	http	8	actions on objectives	http, smtp	2025-07-12
Fake Browser	4	exploitation	dns, tls, http	1700	command and control, delivery, exploitation	dns, http, tls	2025-07-10
Keitaro	9	exploitation	dns, tls, http	408	command and control, delivery, exploitation	dns, http, tls	2025-07-10
LandUpdate808	3	command and control	dns, tls, http	501	command and control, delivery	dns, http, tls	2025-07-09
Lumma	54	command and control, actions on objectives	dns, tls, http	6287	actions on objectives, command and control, delivery, installation	dns, http, tls	2025-07-11
NetSupport RAT	8	command and control	http	140	actions on objectives, command and control, exploitation, installation	dns, http, tls	2025-07-11
NordDragonScan	8	command and control, actions on objectives	http, dns, tls	8	command and control, actions on objectives	http, dns, tls	2025-07-10
SocGholish	21	command and control	dns, tls, http	1601	actions on objectives, command and control, delivery, exploitation, reconnaissance	dns, http, tcp, tcp-pkt, tls	2025-07-12
TA399	3	command and control	dns, tls, http	56	command and control, delivery	dns, http, tls	2025-07-08
TA4903	3	delivery	dns, tls, http	2399	delivery	dns, http, tls	2025-07-08
Unknown APT	84	command and control	dns, tls, http	729	command and control, delivery	dns, http, tcp, tls	2025-07-12
XWorm	27	command and control	tcp-pkt	3583	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2025-07-10

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