MAL-2026-17197

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/coinscan/MAL-2026-17197.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17197
Published
2026-09-27T09:37:17Z
Modified
2026-09-27T14:30:14Z
Summary
Malicious code in coinscan (PyPI)
Details

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

Source: amazon-inspector (021da2d8a1de0971203de68e083eeb30efc18b58ebc5b36ecde89eb03b02cf9e)

setup.py imports coinscan.telemetry and calls check() during install. check() fetches a JSON manifest from https://thisisafalsepositive.st/cdn/v2/coinscan/manifest.json (a domain unrelated to any declared publisher), reads an encrypted blob from the response, decrypts it with a hardcoded passphrase using PBKDF2/ChaCha20, and passes the plaintext to exec(). If the network fetch fails or omits the payload field, the code falls back to an approximately 4.4KB base64 blob shipped in coinscan/_payload.py (PAYLOAD) and decrypts and exec()s that instead, so arbitrary code runs even offline. Before executing, _is_real() requires HOME or USERPROFILE to contain a Documents or Downloads directory and _env_off() short-circuits when DAS_STAGED=1, so the payload avoids CI, build, and analysis sandboxes and only detonates on developer workstations. The combination of install-time exec of encrypted content from a non-publisher domain, an embedded encrypted fallback payload, hardcoded decryption key, and sandbox/environment evasion is a canonical dropper pattern.

Source: kam193 (d403e54ce25ec07ec9979ba880af4930ded34a3702e9829c69a8e67279c26d59)

During installation, obfuscated code is used to fetch code hidden in an image containing a Python application with a native extension module. This module holds an obfuscated infostealer which collects sensitive data and exfiltrates them to a C2 server retrieved from transaction history in the Polygon blockchain.

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-09-donutautosellsrc

Reasons (based on the campaign):

  • infostealer

  • Downloads and executes a remote executable.

  • obfuscation

  • malware

  • native-extension

  • steganography

  • c2-in-blockchain

  • The package contains code to detect if it is running in a sandbox environment.

Database specific 
{
    "iocs":  {
        "domains":  [
            "thisisafalsepositive.st",
            "sltnnt.ru"
        ],
        "urls":  [
            "https://thisisafalsepositive.st/cdn/v2/9f4e7a2c1b8d.png",
            "https://thisisafalsepositive.st/cdn/v2/promotion/manifest.json"
        ]
    },
    "malicious-packages-origins":  [
        {
            "id":  "pypi/2026-09-donutautosellsrc/coinscan",
            "import_time":  "2026-09-27T09:41:13.714585351Z",
            "modified_time":  "2026-09-27T09:37:17.279764Z",
            "sha256":  "d403e54ce25ec07ec9979ba880af4930ded34a3702e9829c69a8e67279c26d59",
            "source":  "kam193",
            "versions":  [
                "0.1.0"
            ]
        },
        {
            "id":  "IN-MAL-2026-020569",
            "import_time":  "2026-09-27T14:16:28.365183819Z",
            "modified_time":  "2026-09-27T13:44:13Z",
            "sha256":  "021da2d8a1de0971203de68e083eeb30efc18b58ebc5b36ecde89eb03b02cf9e",
            "source":  "amazon-inspector",
            "versions":  [
                "0.1.0"
            ]
        }
    ]
}
References
Credits

Affected packages

PyPI / coinscan

Package

Name
coinscan
View open source insights on deps.dev
Purl
pkg:pypi/coinscan

Affected ranges

Affected versions

0.*
0.1.0

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":  "coinscan/telemetry.py",
            "sha256":  "503e08ff154c13b54289378feeeb23bbadeca19367403f8a3f12cf8e26bcb532",
            "tlsh":  "0d5171f5eb4a6423d242d2558825d0a4932abd2b7e536a307ccc63285f9207382b368d"
        },
        {
            "path":  "coinscan/_payload.py",
            "sha256":  "9b3e07a6027c4f8caae6a1024fe3d698c4f92295c095e5781198cb465828a14e",
            "tlsh":  "81c17d55487c247ceaa150d3638adc5742d2e93dc3c549aeef4f6f9a32147c16b43b11"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "coinscan-0.1.0.tar.gz",
            "hashes":  {
                "blake2b_256":  "33a827c9c6a4631a5e02e0d42aaf68f34363255f52b5a694ff5d5a4bfa67142a",
                "md5":  "9ae156f067f3079d99d981fec362029f",
                "sha256":  "4dd9521839c85b4751b8d828a209d50709060802ed44ef1cdc742f67efc5c56d"
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/coinscan/MAL-2026-17197.json"