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: 1285

 

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 (REF7707)
• Major changes to detections(s) [2]: 277
• Updated threat detection(s) [3]: 301

 

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:

 

REF7707 (APT)

REF7707 targeted a South American foreign ministry with novel malware, including FINALDRAFT for Windows and Linux. They used an uncommon LOLBin for execution and relied on cloud services for C2, revealing additional exposed infrastructure.

REF7707 - Thehackernews |

• Total number of detection methods: 24
• 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):

 

Botnet Generic (Botnet)

A botnet is a network of compromised devices controlled by a central server to carry out cyber attacks, steal data, send spam, and grant unauthorized access to devices.

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

 

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: 18

 

Fake Service (Phishing)

Phishing involves scammers posing as familiar companies to obtain personal information. Consumers should avoid responding to suspicious emails requesting personal or financial details to prevent falling victim to these scams.

• Added kill chain phase(s): actions on objectives
• Previously supported kill chain phase(s): command and control, installation, delivery, actions on objectives
• MITRE ATT&CK added: T1071
• Previously existing MITRE ATT&CK: T1071, T1041
• 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: 17

 

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: 93

 

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: 40

 

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: 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: 3

 

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: 20

 

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
• Methods added: 6

 

TA455 (APT)

Meta took action against a hacking group from Iran that targeted various industries worldwide. The group's tactics resembled another threat actor, but with different targets, infrastructure, and malware.

• Added kill chain phase(s): command and control
• Previously supported kill chain phase(s): command and control, installation
• MITRE ATT&CK added: T1583
• Previously existing MITRE ATT&CK: T1071
• Methods added: 9

 

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: 12

 

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: 33

 

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: 20

 

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
Botnet Generic	1	actions on objectives	http	28	actions on objectives, command and control, delivery	dns, http, tcp, tcp-pkt, tls	2025-02-20
Fake Browser	18	exploitation	dns, tls, http	1458	command and control, delivery, exploitation	dns, http, tls	2025-02-22
Fake Service	1	actions on objectives	http	148	actions on objectives, command and control, delivery, installation	dns, http, tcp, tls	2025-02-20
LandUpdate808	17	command and control	dns, tls, http	261	command and control, delivery	dns, http, tls	2025-02-22
Lumma	93	command and control, actions on objectives	dns, tls, http	4473	actions on objectives, command and control, delivery, installation	dns, http, tls	2025-02-22
Malicious DGA Domain	40	command and control	http, tls	206	command and control	http, tls	2025-02-18
NetSupport RAT	4	command and control	http	86	actions on objectives, command and control, exploitation, installation	dns, http, tls	2025-02-20
RAT Generic	3	command and control	tcp	222	actions on objectives, command and control, delivery, installation	dns, http, tcp, tcp-pkt, tls, udp	2025-02-20
REF7707	24	command and control	dns, tls, http	24	command and control	dns, tls, http	2025-02-20
SocGholish	20	command and control	dns, tls, http	1299	actions on objectives, command and control, delivery, exploitation, reconnaissance	dns, http, tcp, tcp-pkt, tls	2025-02-22
TA399	6	command and control	dns, tls, http	18	command and control	dns, http, tls	2025-02-19
TA455	9	command and control	dns, tls, http	545	command and control, installation	dns, http, tls	2025-02-22
TA4903	12	delivery	dns, tls, http	1270	delivery	dns, http, tls	2025-02-19
Unknown APT	33	command and control	dns, tls, http	181	command and control, delivery	dns, http, tls	2025-02-20
XWorm	20	command and control	tcp-pkt	2401	command and control, delivery	dns, http, tcp, tcp-pkt, tls	2025-02-22

 

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