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Lawxsz is an Argentinian cybercriminal and malware author associated with the development, distribution, and promotion of multiple information-stealing malware families and remote access tools, including Prysmax Stealer, Valkyrie Stealer, and Packit Stealer. The actor has also operated as a broader cybercrime facilitator, advertising fully undetectable stealers and RATs, brokering access to credential aggregation tooling, participating in carding activity, seeking phishing-kit development, and trading identity-related data tied to Argentina. Known aliases include Prysmaxadmin, Martinkwa, thesystemowner, Lukixploit, thesystemowners, lawxsex, luquii, and Lucas555. Operationally, Lawxsz has maintained a presence across multiple underground forums, messaging platforms, code-hosting services, and social platforms. Activity attributed to the actor spans at least from 2023 through 2026. The actor’s malware offerings and advertisements indicate a focus on credential theft and related post-compromise monetization, including theft of passwords, browser cookies, and cryptocurrency wallets. Publicly linked development activity also suggests familiarity with anti-analysis techniques and offensive tooling. The actor is assessed to originate from Argentina with high confidence, based on converging attribution evidence including language use, timezone-consistent activity, Argentina-focused community participation, and multiple identity-linkage artifacts. The overall pattern is consistent with a financially motivated cybercrime operator centered on malware development, credential theft, and illicit data trading rather than espionage or disruptive operations.
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Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Attributed origin per open-source reporting.
22 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
4 malware families attributed to this actor across reporting.
9 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.