{"id":"MAL-2026-6776","summary":"Malicious code in @marketfront/dynamicpageparams (npm)","details":"The @marketfront/dynamicpageparams package is part of a 25-package malicious campaign batch-published to the @marketfront npm scope by npm user 'marketfront' (marketfront@tutamail.com) within a roughly 3-minute window on 2026-07-01. All packages in the campaign were published at version 7.0.0 and use e-commerce/marketing frontend component names as cover.\n\nThe package declares a postinstall hook (node scripts/postinstall.js) that executes heavily obfuscated (obfuscator.io-style) code automatically at npm install time. Static analysis of the decoded payload revealed a credential harvester that dynamically requires fs, os, http, https, zlib, path and dns, then reads approximately 20 sensitive credential files including ~/.ssh, ~/.aws/credentials, ~/.kube/config, ~/.docker/config.json, ~/.npmrc, ~/.netrc, ~/.pgpass, ~/.git-credentials, ~/.env and ~/.bash_history. Collected data is exfiltrated via a gzip-compressed HTTPS POST with a custom X-Secret header to the path /api/v1/events, alongside a DNS resolver beacon. The command-and-control host is concealed behind an additional RC4+XOR encryption layer around an embedded configuration blob and was not statically resolved.\n\nThe decoded behavioral payload (module requires, credential-file target list, exfiltration headers and endpoint) is byte-for-byte identical across sampled packages in the campaign. The campaign shares tooling and infrastructure patterns (obfuscated postinstall credential harvester, X-Secret header, /api/v1/events exfiltration path, RC4-concealed C2) with the earlier @emcd-vue campaign, indicating the same actor rotating scopes and disposable maintainer emails.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (514b19e5c1b1245c9c2a18b89858e78e48cde1170365d2e033d128491234e36b)\nAutomated tracing of this package's contents was withheld by an upstream content filter, and no a static rule findings are available to corroborate a specific attack fingerprint. The content-filter signal is suggestive but, on its own without concrete traced or static evidence naming a specific installer-harm behavior (exfiltration destination, credential path read, install-time fetch-and-execute, backdoor), it does not meet the bar for a published block verdict. The package should be manually inspected before use: review package.json lifecycle scripts (preinstall/install/postinstall/prepare), the module's top-level require/import side effects, and any bundled or minified JavaScript for hardcoded network destinations, credential-path reads (~/.npmrc, ~/.aws, ~/.ssh, environment scraping), or remote fetch-and-execute patterns.\n","modified":"2026-07-09T22:17:04.877269631Z","published":"2026-07-02T00:00:00Z","database_specific":{"malicious-packages-origins":[{"import_time":"2026-07-09T22:02:34.735669228Z","source":"amazon-inspector","sha256":"514b19e5c1b1245c9c2a18b89858e78e48cde1170365d2e033d128491234e36b","versions":["7.0.0"],"id":"IN-MAL-2026-009471","modified_time":"2026-07-09T22:00:24Z"}]},"references":[{"type":"REPORT","url":"https://safedep.io/marketfront-dependency-confusion-campaign/"},{"type":"PACKAGE","url":"https://www.npmjs.com/package/@marketfront/dynamicpageparams/v/7.0.0"}],"affected":[{"package":{"name":"@marketfront/dynamicpageparams","ecosystem":"npm","purl":"pkg:npm/%40marketfront/dynamicpageparams"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"versions":["7.0.0"],"database_specific":{"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@marketfront/dynamicpageparams/MAL-2026-6776.json","cwes":[{"name":"Embedded Malicious Code","cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature."},{"name":"Embedded Malicious Code","cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature."}],"indicators":{"package_integrity":[{"hashes":{"sha1":"be319875ac4719b2eb34520c7688d56bf029d702","sha512_sri":"sha512-x/LW9BvZNncfTY6qoXYII1tEuXgLxWja4BRe1eIJvFvt7c2E2B2Au67eCwWTLm/Ox8qsGCA/6EWpfXXfL43KIA=="},"filename":"dynamicpageparams-7.0.0.tgz"}]}}}],"schema_version":"1.7.5","credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"},{"name":"SafeDep","contact":["https://safedep.io"],"type":"FINDER"}]}