Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f8d2803f8b21299…

MALICIOUS

PDF

34.4 KB Created: 2021-06-27 15:32:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 522b3e3be1ad2e3cacbed5da60caf645 SHA-1: 520b48d73a1be8c228ccc16a9ff17e8d9f598173 SHA-256: 6f8d2803f8b212996155dd15565e1b50b1c914ffe3d804e912f25bf11340d4f9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free in-game currency. The ML classifier also flagged this PDF as malicious. The embedded links likely lead to further malicious content or phishing pages designed to steal user credentials or distribute additional malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/citizen-roblox-hack-game-hack In PDF document text
    • http://muslib.unmus.ac.id/repository/citixen-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/cryptic-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/ariana-grande-break-free-roblox-id_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-fun-free-spins_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-websites-that-scam-you_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-money-on-rocitizens-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-rixty-robux-codes_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-extension_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/hack-any-roblox-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-coins--spins-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-no-buying-apps_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/pastebin-free-robux-hack-no-wait_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-work-at-a-pizza-place-cheats-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-cards_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDF 22256 bytes
SHA-256: 80fcce06b323ddac89ddb4c362e3fa1ba35562acb41a6c197cd2e6a77286f2d6
font_01_sfnt_off00006151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6151 18960 bytes
SHA-256: 43218f6a6db0ed9f11a9b1e81ab33eb8f07fc146df645883190c2ec6e25b2a9d

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