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IOC Radar

Indicators are what attackers leave behind. Stolen credentials are what they arrive with.

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9 IOCs

Hidden World of xattr: Lazarus Group’s Abuse of "Rustyattr" to Evade Detection

Denwp Research
Denwp Research
Published November 19, 2024Original Report

Threat Actors

Excerpt

A technique, often overlooked, involves the use of extended file attributes —specifically the xattr command found in Unix-like operating systems such as macOS and Linux. Much like Windows Alternate Data Streams (ADS) , which allows attackers to hide data in the NTFS filesystem, xattr provides a mechanism for embedding metadata alongside files without altering their visible content. This stealthy use of xattr (which we’ll refer to as Rustyattr ) has been…

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Diamond Model

SOCIAL AXISTECHNOLOGY AXISADVERSARYLazarus GroupINFRASTRUCTURE104.168.165.203104.168.157.45cloudstore.businessCAPABILITYunknownVICTIMunknown
Adversary(1)
Infrastructure(4)
Capability
Victim

Indicators of Compromise

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9 indicators

TypeIndicatorConfidenceScoreFirst Seen
SHA2564bce97eff4430708299a1bb4142b9d359d8adf77a2e1673bf76485df25e6d357MediumScore 53/100First seen
IP104.168.165.203HighScore 58/100First seen
SHA512e87177e07ab9651b48664c3d22334248e012e8a2bab02f65c93fedd79af0a74f7464850d7d6891418c503d0e1732812d7703d6c1fd5cf3c821f3c202786f9422MediumScore 53/100First seen
IP104.168.157.45HighScore 58/100First seen
Domaincloudstore.businessHighScore 58/100First seen
SHA256878e3701df9b0abdaa7094e22d067c8398a9fc842cabe917fd5f75f2c84d8552MediumScore 53/100First seen
SHA25648ee5d0d44a015876d867fa515b04c1998fecf19badcbd69f4f3fa8497d57215MediumScore 53/100First seen
SHA256022344029b8bf951ba02b11025fe26c99193cb7c8a482c33862c9bbaa5e5528eMediumScore 53/100First seen
Domaindocsend.siteHighScore 58/100First seen

IOC Relationship Graph

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