Category: Threat Intelligence
Articles tagged Threat Intelligence

Update to the REF2924 intrusion set and related campaigns
Elastic Security Labs is providing an update to the REF2924 research published in December of 2022. This update includes malware analysis of the implants, additional findings, and associations with other intrusions.

SiestaGraph: New implant uncovered in ASEAN member foreign ministry
Elastic Security Labs is tracking likely multiple on-net threat actors leveraging Exchange exploits, web shells, and the newly discovered SiestaGraph implant to achieve and maintain access, escalate privilege, and exfiltrate targeted data.

Operation Bleeding Bear
Elastic Security verifies new destructive malware targeting Ukraine: Operation Bleeding Bear

Exploring the REF2731 Intrusion Set
The Elastic Security Labs team has been tracking REF2731, an 5-stage intrusion set involving the PARALLAX loader and the NETWIRE RAT.
KNOTWEED Assessment Summary
KNOTWEED deploys the Subzero spyware through the use of 0-day exploits for Adobe Reader and the Windows operating system. Once initial access is gained, it uses different sections of Subzero to maintain persistence and perform actions on the host.

Doing time with the YIPPHB dropper
Elastic Security Labs outlines the steps collect and analyze the various stages of the REF4526 intrusion set. This intrusion set uses a creative approach of Unicode icons in Powershell scripts to install a loader, a dropper, and RAT implants.

ICEDIDs network infrastructure is alive and well
Elastic Security Labs details the use of open source data collection and the Elastic Stack to analyze the ICEDID botnet C2 infrastructure.
CUBA Ransomware Campaign Analysis
Elastic Security observed a ransomware and extortion campaign leveraging a combination of offensive security tools, LOLBAS, and exploits to deliver the CUBA ransomware malware.
LUNA Ransomware Attack Pattern Analysis
In this research publication, we'll explore the LUNA attack pattern — a cross-platform ransomware variant.

Exploring the QBOT Attack Pattern
In this research publication, we'll explore our analysis of the QBOT attack pattern — a full-featured and prolific malware family.

Elastic Security uncovers BLISTER malware campaign
Elastic Security has identified active intrusions leveraging the newly identified BLISTER malware loader utilizing valid code-signing certificates to evade detection. We are providing detection guidance for security teams to protect themselves.
A close look at the advanced techniques used in a Malaysian-focused APT campaign
Our Elastic Security research team has focused on advanced techniques used in a Malaysian-focused APT campaign. Learn who’s behind it, how the attack works, observed MITRE attack® techniques, and indicators of compromise.