Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff6dea7b21077222…

MALICIOUS

PDF

38.4 KB Created: 2021-07-06 13:26:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f47c105088eea4adf110f36a1111a59a SHA-1: 0e5de75e8a5afd8714ac611fd1931df42deb528b SHA-256: ff6dea7b210772221a7eb54466cd47983db2623753d0f0a06d95370c71149484
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a lure, promising free game currency (Robux) to entice users to click on a link. The embedded link redirects to a known malicious infrastructure, indicating a phishing or scam attempt. The document's content and the associated heuristics strongly suggest a malicious intent to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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.tw/app/431946152/how-to-get-free-robux-not-a-scam-game-hack In PDF document text
    • https://lib.unitri.ac.id/repository/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-tiktok-followers-no-human-verification_GM835599320.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/robux-hack-apk-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/fake-free-robux-place-download_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/killa-in-kalahari-sirius-mashup-copyright-free-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/cheat-codes-for-deletive-mod-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-nike-shirt-template-free-shipping_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-champl-dll-hack_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/freerbx-info-for-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/how-to-get-free-spins-on-coin-master-android_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/hacks-for-roblox-that-arnt-pachted-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-robux-gift-card-amazon_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003da0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DA0 22944 bytes
SHA-256: 3f505cd823fc2ab147684d25a4d900ecbdb051abdd3deaa5dd575654012b1185
font_01_sfnt_off000070ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70BA 19244 bytes
SHA-256: 983774d3ab3dc9a6ad7d8a23e2c7ce5fcf81accc4aa13182fbdeb0a54c040bf9

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