Malicious PDF — malware analysis report

Static analysis result for SHA-256 e483ddfdfb4f34f9…

MALICIOUS

PDF

48.2 KB Created: 2021-05-14 01:32:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c760c16a1c2a56b8f514b65f73c39a2c SHA-1: 2b2a9a18cd0808f3abc0851504d283e306bdd862 SHA-256: e483ddfdfb4f34f9ce2e30d2a0d0dbd509d11b61a91feae5fb82b7c64fa95648
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or generators. The ML classifier also flagged this PDF as malicious. The embedded URLs are designed to lure users into downloading further malicious content or visiting phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/431946152/free-robux-place-game-hack In PDF document text
    • https://sunnygarden.com.tw/image/data/files/hack-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/claim-robux_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/robux-generators-that-actually-work_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c0d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C0D 26580 bytes
SHA-256: 972d69a5a60ff2ac3ced166b4a37131c82460e35323ca5e26a468e0e992c12f9
font_01_sfnt_off000087ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87CA 7448 bytes
SHA-256: a76ff9b4805dcff342f7268a16e2e3c2ff2b31b96c381fe4deb6ceea777bce90
font_02_sfnt_off000099ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99AD 18472 bytes
SHA-256: a8315d3de564ce67f995c8887965c7d9f34366905f839248eafe88b792a59691

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