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Powerful MaaS On the Prowl for Credentials and Crypto Assets

Medium
Published: Thu Jul 17 2025 (07/17/2025, 19:39:21 UTC)
Source: AlienVault OTX General

Description

Katz Stealer is a sophisticated infostealer marketed as Malware-as-a-Service (MaaS), launched in early 2025. It features robust credential and data theft capabilities, along with modern evasion and anti-analysis techniques. The stealer targets a wide range of personal and sensitive information, including passwords, cryptocurrency keys, and browser session data. Operated through a web-based management panel, Katz Stealer allows affiliates to generate custom payloads and manage stolen data. Its infection chain involves obfuscated JavaScript droppers, steganography, and process hollowing techniques. The malware focuses heavily on browser data theft and cryptocurrency wallet targeting, with the ability to bypass some browser security measures.

AI-Powered Analysis

AILast updated: 07/17/2025, 20:31:38 UTC

Technical Analysis

Katz Stealer is a sophisticated Malware-as-a-Service (MaaS) infostealer that emerged in early 2025, designed primarily to harvest credentials and cryptocurrency-related data. It operates via a web-based management panel that enables affiliates to create customized payloads and efficiently manage stolen data, indicating a scalable and user-friendly criminal infrastructure. The malware employs advanced infection techniques including obfuscated JavaScript droppers, steganography to hide malicious code within benign files, and process hollowing to evade detection by security solutions. Katz Stealer targets a broad spectrum of sensitive information, focusing heavily on browser data such as saved passwords, session cookies, and cryptocurrency wallet keys, enabling attackers to bypass some browser security mechanisms. Its evasion capabilities include anti-analysis and anti-detection methods, making it difficult for traditional endpoint security tools to identify and mitigate the threat. The malware leverages multiple MITRE ATT&CK techniques such as credential dumping (T1555), process injection (T1055), obfuscated files or information (T1027), and data exfiltration (T1041), highlighting its multi-faceted approach to compromise and data theft. Despite its sophistication, there are no known public exploits or patches associated with Katz Stealer, as it is primarily distributed through MaaS affiliates rather than exploiting software vulnerabilities directly. The medium severity rating reflects the balance between its potent data theft capabilities and the requirement for initial infection vectors, typically involving user interaction or social engineering.

Potential Impact

For European organizations, Katz Stealer poses significant risks, particularly to sectors and individuals involved in cryptocurrency transactions and digital asset management. The theft of credentials and browser session data can lead to unauthorized access to corporate and personal accounts, resulting in financial loss, data breaches, and reputational damage. The malware's ability to bypass browser security measures increases the likelihood of successful exfiltration of sensitive information. Organizations with employees who handle cryptocurrency or use browsers to access sensitive systems are especially vulnerable. Additionally, the MaaS model lowers the barrier for cybercriminals to deploy this malware, potentially increasing the volume and diversity of attacks across Europe. The impact extends beyond financial theft to potential secondary attacks such as account takeover, lateral movement within networks, and espionage. Given the widespread use of browsers and cryptocurrency wallets in Europe, the threat could disrupt business operations and erode trust in digital financial services.

Mitigation Recommendations

To mitigate Katz Stealer effectively, European organizations should implement a layered defense strategy tailored to the malware's specific tactics. First, enhance endpoint protection with advanced behavioral detection capable of identifying process hollowing and obfuscated scripts. Deploy browser security solutions that monitor and restrict unauthorized access to stored credentials and session data. Employ strict application control policies to prevent execution of unauthorized JavaScript droppers and scripts, including disabling or sandboxing macros and script execution where feasible. Implement network monitoring to detect unusual outbound data flows indicative of data exfiltration. Educate users on phishing and social engineering risks to reduce initial infection vectors. For organizations involved in cryptocurrency, use hardware wallets or multi-factor authentication to protect keys, and segregate crypto-related activities from general browsing. Regularly audit and update incident response plans to address MaaS threats, including rapid identification and containment of infected endpoints. Finally, collaborate with threat intelligence providers to stay informed about evolving Katz Stealer variants and tactics.

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Technical Details

Author
AlienVault
Tlp
white
References
["https://www.sentinelone.com/blog/katz-stealer-powerful-maas-on-the-prowl-for-credentials-and-crypto-assets/"]
Adversary
null
Pulse Id
68795169d12d2d2919a05908
Threat Score
null

Indicators of Compromise

Hash

ValueDescriptionCopy
hash02115d0005c8ade176156c78565828dc
hash03552e4adc8dda4557edc5ca57c611ca
hash0710c5fd7d53dece6926b297e343d3f2
hash07a7f829677af65f778369a3fc4e1f86
hash151ab8a4cc1d5b1995e15c3ca19baff9
hash1ad13ba816a63bcf1d01c8485f500029
hash3786bf65df20165b526af646ab1e46c7
hash38331f134a3f5ee9a945c2d1d4f0768a
hash3f3ada874a48e48d72ac26d12f8c7e60
hash74a7b0e5438b16326b9230aea2a5b359
hash7b1b9f0292979cf0df3ef21f4bae0882
hash90c5821bf41c4ab7f33bb748551def22
hash94b5e34bef3d836632ef422205c5c1f3
hash9dca61626ab6343fb5e39ce310b367e8
hasha672f39ead8bd2f98386bb9b62c708a2
hashb52ace1f26aab3fbf89ee9fb8d23a52e
hashbb2b3420577efcc0c0a09f7488456b91
hashcd1dd021e439fd621fc3410bfb2dfb78
hashce02802067934e0eb072f69bf6427bf6
hashd384268b339c7e5440ee1a7607be3495
hashda7ec01e2e6a198d1968055642ec5012
hashe9b413e1abd01b6b98062d39c5552a57
hashf0220f5d1f935f09d58e869247cfdb5d
hashf175f4c2d99cc4f35f9aecdffc3489ed
hashf69bf1ed39691a1c5cabfbadc2faed6c
hash0076795b220fa48c92b57994b015119aae8242ca
hash0c1f2ee0328e0ed7e4ec84ef452bffa1749f5602
hash0fad38ab91d5676378265405b4f42d98e475c44c
hash17ce22264551bd32959790c4c2f57bec8304e2ce
hash1976a1a05a6a47ac33eb1cfc4e5a0eb11863f6eb
hash1b6b072df8f69a47fd481fa9be850c0063fd5b93
hash1d5ef46357eb2298b1c3c4faccbaafa729137613
hash1ee406eb68ab92bad77cf53df50c4ce6963e75fd
hash26e089bed61c0d89e5078f387bd55dd5895d4fc0
hash29daa866c85fc1e302c40a73bc2a0772aa285295
hash2f2ced67e87101f4d1275456f0861209809492fc
hash3cf4f3ababa912e0e6bb71ab5abb43681d8e7ecc
hash47ea1c41f79f775f0631191ee72852c1bfb61a7e
hash4e69cb16a3768733d94bb1b5d8f1556d0bddd09b
hash4eeda02db01cdf83948a83235c82e801522efa54
hash5179dbf5e9fd708f6e6df8b4913f21c3b78d5529
hash5492947d2b85a57f40201cd7d1351c3d4b92ae88
hash571b3681f7564236b7527d5b6fe14117f9d4de6d
hash5de014856702b9f1570944e8562ce283f7cd0a64
hash6351b5505dc671d143d5970eb08050d2f7344149
hash680984e43b76aa7a58ed9b617efe6afcb1f04bb7
hash6d88a5f0021278c2c3a56c177f39f4a31f286032
hash76bb7ffe523f594308ecd482db4f32047905c461
hash80f1b8b27833db614d3f7c2a389aceb033b8ce80
hash82dc7c0ca39f114c333caae9a6931a2a1c487ee5
hash8c2422ebab77a0de81d2e46e1326d8912b099018
hash9becb041aedc7c6aafeb412b4b91788e1df65b38
hash9c60a2b4764b7b5e3a6c7f20036490a539996d8a
hasha0717a486b4e037871c4657cf353cd298f13601f
hashb3d574dfb561f5439930e2a6d10917f3aa58c341
hashb40e56439d4dcdc238b8254adbd8862c73ca34bc
hashb61f92613dc911609b78a1e83c5baadc7e289dbc
hashb744179d3304d1e977e680502d201b7df49cb188
hashbbf2a5fdb039366b3f9eca603bf08ae92c43c0ef
hashcc800e4977d76c38656f3f60c5ed5f02df6a2f7b
hashce19aa5eb7fce50dd94b5f740d162f8d9b057fde
hashda5ed6b939f51370709f66cbf0d8201ec8cd58b0
hashdffc1167399631ed779b5698d0ac2d9ea74af6c8
hashdffddd2fb7b139d2066284c5e0d16909f9188dc2
hashe26d65d8c25b0be7379e4322f6ebcadecbb02286
hashe78f942ca088c4965fcc5c8011cf6f9ee5c2a130
hashfb4792306f2cf514e56bc86485920b8134954433
hash22af84327cb8ecafa44b51e9499238ca2798cec38c2076b702c60c72505329cb
hash25b1ec4d62c67bd51b43de181e0f7d1bda389345b8c290e35f93ccb444a2cf7a
hash2798bf4fd8e2bc591f656fa107bd871451574d543882ddec3020417964d2faa9
hash2852770f459c0c6a0ecfc450b29201bd348a55fb3a7a5ecdcc9986127fdb786b
hash5dd629b610aee4ed7777e81fc5135d20f59e43b5d9cc55cdad291fcf4b9d20eb
hash6dc8e99da68b703e86fa90a8794add87614f254f804a8d5d65927e0676107a9d
hash85f2455dfe4edd531a7074bd3ad2b49d065b42e9caa5129a075728961767b6b7
hash8d2ba9e251d0dc9bc1d047f8d4cb36624d0288ba417c2afa48f11348454db7aa
hash925e6375deaa38d978e00a73f9353a9d0df81f023ab85cf9a1dc046e403830a8
hash945365891630b70db7bd0069dca9890c3894702bfeac10a788a487eb9900870f
hash964ec70fc2fdf23f928f78c8af63ce50aff058b05787e43c034e04ea6cbe30ef
hash96ada593d54949707437fa39628960b1c5d142a5b1cb371339acc8f86dbc7678
hasha6b736988246610da83ce17c2c15af189d3a3a4f82233e4fedfabdcbbde0cff0
hashb249814a74dff9316dc29b670e1d8ed80eb941b507e206ca0dfdc4ff033b1c1f
hashb912f06cf65233b9767953ccf4e60a1a7c262ae54506b311c65f411db6f70128
hashc601721933d11254ae329b05882337db1069f81e4d04cd4550c4b4b4fe35f9cd
hashc929ee54bdd45df0fa26d0e357ba554ef01159533501ec40f003a374e1e36974
hashd21beddb601c2b16bbdb7934a12b822962e40d3b3f64b7f83edc763c57649bcf
hashd92bb6e47cb0a0bdbb51403528ccfe643a9329476af53b5a729f04a4d2139647
hashe345d793477abbecc2c455c8c76a925c0dfe99ec4c65b7c353e8a8c8b14da2b6
hashe4249cf9557799e8123e0b21b6a4be5ab8b67d56dc5bfad34a1d4e76f7fd2b19
hashe73f6e1f6c28469e14a88a633aef1bc502d2dbb1d4d2dfcaaef7409b8ce6dc99
hashfb2b9163e8edf104b603030cff2dc62fe23d8f158dd90ea483642fce2ceda027
hashfdc86a5b3d7df37a72c3272836f743747c47bfbc538f05af9ecf78547fa2e789

Ip

ValueDescriptionCopy
ip185.107.74.40
ip195.182.25.71
ip31.177.109.39
ip80.64.18.219

Domain

ValueDescriptionCopy
domainkatz-panel.com
domainkatzstealer.com
domainzxczxczxczxc.twist2katz.com

Threat ID: 68795a0aa83201eaace8b7fe

Added to database: 7/17/2025, 8:16:10 PM

Last enriched: 7/17/2025, 8:31:38 PM

Last updated: 7/17/2025, 8:31:38 PM

Views: 2

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