{"id":"MAL-2026-6784","summary":"Malicious code in @marketfront/livestreampreviewpopup (npm)","details":"The @marketfront/livestreampreviewpopup 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 (93ffdd19e32de6c0b06508d32fac098925466ac85dbc28da3c20984abc72d4ef)\nThe package declares a postinstall hook (`node scripts/postinstall.js`) whose contents are an obfuscator.io-packed payload (string-array + RC4 decoder, hex identifiers, control-flow flattening) that runs automatically on `npm install`. On execution it collects installer host and identity data (os.hostname, os.userInfo, os.networkInterfaces, os.platform/release/arch, cwd, npm_config_user_agent, running-process enumeration, and the full process.env) and reads installer-owned secret files under the home directory (SSH keys, cloud credential files, npmrc/pypirc, browser profile data, shell history). The collected data is RC4-encrypted and transmitted to a hardcoded remote endpoint reassembled at runtime via atob() fragments over HTTPS POST, plus a base32-chunked DNS subdomain side-channel (`require('dns').Resolver` with `setServers([hostname])` and `resolve4` on `\u003cindex\u003e.\u003crandom\u003e.\u003cchunk\u003e.\u003crandom\u003e.\u003cattacker-domain\u003e`) to bypass HTTP egress filtering. The advertised library surface is decorative: `main` points at `dist/index.js`, which re-exports `../src/index.js`, but `src/` is not shipped in the tarball, so consumers requiring the package error immediately. The package presents itself as an internal `@marketfront` Platform-Engineering package with homepage/repo/bugs URLs at nonexistent `*.marketfront.io` hosts and instructs installers to configure `registry=https://npm.marketfront.io`, consistent with a dependency-confusion attack against organizations using a private `@marketfront` scope. Version 7.0.0 with no prior public history reinforces the shadow-a-private-name staging pattern.\n","modified":"2026-07-06T05:16:46.402788072Z","published":"2026-07-02T00:00:00Z","database_specific":{"malicious-packages-origins":[{"versions":["7.0.0"],"modified_time":"2026-07-06T03:21:11Z","import_time":"2026-07-06T04:58:10.980288912Z","source":"amazon-inspector","sha256":"93ffdd19e32de6c0b06508d32fac098925466ac85dbc28da3c20984abc72d4ef","id":"IN-MAL-2026-008032"}]},"references":[{"type":"REPORT","url":"https://safedep.io/marketfront-dependency-confusion-campaign/"},{"type":"PACKAGE","url":"https://www.npmjs.com/package/@marketfront/livestreampreviewpopup/v/7.0.0"}],"affected":[{"package":{"name":"@marketfront/livestreampreviewpopup","ecosystem":"npm","purl":"pkg:npm/%40marketfront%2Flivestreampreviewpopup"},"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/livestreampreviewpopup/MAL-2026-6784.json","cwes":[{"description":"The product contains code that appears to be malicious in nature.","cweId":"CWE-506","name":"Embedded Malicious Code"},{"description":"The product contains code that appears to be malicious in nature.","cweId":"CWE-506","name":"Embedded Malicious Code"}],"indicators":{"evidence_files":[{"path":"scripts/postinstall.js","sha256":"48dd47a57354c7b6c8169493ae8c6f70bfeaeef8da16d9110c61a8a503221029","tlsh":"d0f3eb892744d493d85fdfbfbe71e6f4e1197cc6c3c5244af714b82ce89852a9a48b80"},{"path":"package.json","sha256":"32acf7b18f0550397fa7e8db36e67840ceabccb264d6212fe4b9e72a894c8e4e","tlsh":"8a111f32c5258c2332d516e7fdb91e02b86a199f1889fc1ca2c3911c5fcd0aa60fd67e"},{"path":"dist/index.js","sha256":"ef33b25b7f17c5fc669db0d5c406e2eb41b8559b29f093d8aac7e3989dc2647a","tlsh":"35a0112a2ab2a282028200c2c0c3aa0200eac030008820220a088aac8088cc800ec8a8"}],"package_integrity":[{"filename":"livestreampreviewpopup-7.0.0.tgz","hashes":{"sha1":"0038d838ca6ba9b695ec87aaafd198711b12b12b","sha512_sri":"sha512-3iJZuf9eCX+RLYs3H6CqxgVmS2BcRwsaeUhoaV430vZDSgU2N6W1EkPJCdauT6NoLaq0G4ab816gY+jEkVxAtw=="}}]}}}],"schema_version":"1.7.5","credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"},{"name":"SafeDep","contact":["https://safedep.io"],"type":"FINDER"}]}