Malicious PDF — malware analysis report

Static analysis result for SHA-256 ded4aec789f0181e…

MALICIOUS

PDF

55.9 KB Created: 2021-05-11 07:38:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 36c2ee39592a525f14e3e2d20bc2e651 SHA-1: fab9c84849fc2e0fe348290d35873fb64ef275f8 SHA-256: ded4aec789f0181ec837dd61d471995a2b960a2279d20c41999b0d4ddb047e34
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to websites offering 'free generator' or 'game hack' lures, indicative of a phishing or scam campaign. The heuristic firings confirm these links point to malicious redirector infrastructure. While no scripts were explicitly extracted, the nature of the lures and embedded URLs suggests an attempt to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8407

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/daily-free-spins-and-coins-coin-master-game-hack In PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/coin-master-server-hack_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/coin-master-free-spins-5-10-2021_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/can-you-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/impact-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/coin-master-redeem-code-free_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004da9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DA9 26012 bytes
SHA-256: b4a2a02b8cc18802520b9387c6024ef2f85f892e1572ad8a5c445babf5f7ed3d
font_01_sfnt_off00008ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE3 3088 bytes
SHA-256: e7854aff7cbc8fbdeb85d2b3d6248d12dc820ede8a581f4eac107fa6446c2222
font_02_sfnt_off000095ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95AE 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2
font_03_sfnt_off0000a8d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8D4 18480 bytes
SHA-256: 7c8814aa8241d1100b5fc7eb88efbf957a38e0e1504ba8bbc82257e077b03f3f
font_04_sfnt_off0000cb6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB6D 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0

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