Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3eabe4faf8d61fd…

MALICIOUS

PDF

41.1 KB Created: 2021-05-15 12:06:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6111d9eb81793cda33c228d45ccc7e6b SHA-1: 56644b1fa7fe026a5d4acd9787d1d2c9ebbe3a93 SHA-256: f3eabe4faf8d61fd371bf7d21fcf2db34417f3cfbe150c11d9d449dc34e0b42e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are flagged as malicious redirectors, specifically promoting 'free generator / game hack' lures. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to trick users into visiting malicious sites. While no scripts were explicitly extracted, the nature of the links and the heuristic firings indicate a high likelihood of leading to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/406889139/get-free-spins-coin-master-link-game-hack In PDF document text
    • http://grupodin.com.br/images/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://grupodin.com.br/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://grupodin.com.br/images/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://grupodin.com.br/images/http-bitly-coin-master-free-2021-spins_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://grupodin.com.br/images/level-coin_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://grupodin.com.br/images/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://grupodin.com.br/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/coin-master-in-app-purchase-hack_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/coin-master-free-coins-and-spins-online-tool_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://grupodin.com.br/images/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/como-hackear-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://grupodin.com.br/images/coins-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004811.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4811 24036 bytes
SHA-256: 6e9065b4ca217274c8978a47d91ba0477d4346231d4620507c725b64e6ff7892
font_01_sfnt_off00007ef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF2 18056 bytes
SHA-256: ab85056fbf29cd03dcfab7de7beb0343ed26656e2e8858e8ad52cb7aa31a5a92

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