mal-2026-13647
Vulnerability from ossf_malicious_packages
Published
2026-08-08 00:44
Modified
2026-08-08 00:44
Summary
Malicious code in sme-rko-finance-front-operations-shared (npm)
Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (a26817ccf57c03ae447f3181ec0a18c3cf5a2bcd09da40cd8aaa3fa56446ab21)

On require/import, index.js loads./bootstrap and re-exports./lib/telemetry, both of which execute a download-and-execute dropper. _bootstrap.js reconstructs hardcoded hosts via array-join obfuscation (oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, with a DNS-TXT chunked fallback under *.dl.wel1.ru), fetches a platform-specific binary via https.get, writes it to /var/tmp or %TEMP% under a disguised name (.cache / dotnet_diag_.exe), chmods 0o755 on POSIX, and detached-spawns it via cp.spawn('/bin/sh',['-c', fp+' &'],{detached:true}).unref(). Sensitive APIs are also obfuscated (require('child_'+'process'), fs['chmod'+'Sync']) to evade string-based scanners, and markerFresh() rate-limits re-execution. lib/telemetry.js (the module actually exported from index.js) contains a parallel dropper that base64-decodes embedded chunks, writes them to disk, chmods 0o755 via the same obfuscated accessor, and detached-spawns them through /bin/sh. The package presents as "analytics" but ships two independent import-time RCE paths delivering attacker-controlled binaries from anonymous Cloudflare workers.dev endpoints and a Russian lookalike TLD, unpinned and unverified.

CWE
  • CWE-506 - The product contains code that appears to be malicious in nature.
Credits

{
  "affected": [
    {
      "database_specific": {
        "cwes": [
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "_bootstrap.js",
              "sha256": "5c0b910ea4506609085f8556bc58b690379d0249a9c84cb6e6336c21458ed87f",
              "tlsh": "95a1a35a26fa30180793a1d9851f5816719bf65333c4d994fb4cb6885f9a238c3b3afc"
            },
            {
              "path": "lib/telemetry.js",
              "sha256": "6787007ba8159afe11203bd5b258f829e3164473569a685b071c58c9e2990e8e",
              "tlsh": "a773304966fb10214263b0685fab40437635c4072a4eed5dba9c43ec9f8db3896f1fb9"
            }
          ],
          "package_integrity": [
            {
              "filename": "sme-rko-finance-front-operations-shared-35.8.1.tgz",
              "hashes": {
                "sha1": "b65378a9ca1e9a66f022b82581f088568b0b1038",
                "sha512_sri": "sha512-Zo2xERNUF7o34HKxiU8cy8mlO4lKSFAFpNGlI0c7h+aMKwfHFsXZAEDN/JF15OPphxBCErnkB7iDCHbZ723Cgg=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "sme-rko-finance-front-operations-shared"
      },
      "versions": [
        "35.8.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-017146",
        "import_time": "2026-08-08T00:53:06.790004853Z",
        "modified_time": "2026-08-08T00:44:32Z",
        "sha256": "a26817ccf57c03ae447f3181ec0a18c3cf5a2bcd09da40cd8aaa3fa56446ab21",
        "source": "amazon-inspector",
        "versions": [
          "35.8.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (a26817ccf57c03ae447f3181ec0a18c3cf5a2bcd09da40cd8aaa3fa56446ab21)\nOn require/import, index.js loads./_bootstrap and re-exports./lib/telemetry, both of which execute a download-and-execute dropper. _bootstrap.js reconstructs hardcoded hosts via array-join obfuscation (oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, with a DNS-TXT chunked fallback under *.dl.wel1.ru), fetches a platform-specific binary via https.get, writes it to /var/tmp or %TEMP% under a disguised name (.cache_\u003crnd\u003e / dotnet_diag_\u003crnd\u003e.exe), chmods 0o755 on POSIX, and detached-spawns it via cp.spawn(\u0027/bin/sh\u0027,[\u0027-c\u0027, fp+\u0027 \u0026\u0027],{detached:true}).unref(). Sensitive APIs are also obfuscated (require(\u0027child_\u0027+\u0027process\u0027), fs[\u0027chmod\u0027+\u0027Sync\u0027]) to evade string-based scanners, and markerFresh() rate-limits re-execution. lib/telemetry.js (the module actually exported from index.js) contains a parallel dropper that base64-decodes embedded chunks, writes them to disk, chmods 0o755 via the same obfuscated accessor, and detached-spawns them through /bin/sh. The package presents as \"analytics\" but ships two independent import-time RCE paths delivering attacker-controlled binaries from anonymous Cloudflare workers.dev endpoints and a Russian lookalike TLD, unpinned and unverified.\n",
  "id": "MAL-2026-13647",
  "modified": "2026-08-08T00:44:32Z",
  "published": "2026-08-08T00:44:32Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/sme-rko-finance-front-operations-shared/v/35.8.1"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in sme-rko-finance-front-operations-shared (npm)"
}



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