Malicious PDF — malware analysis report

Static analysis result for SHA-256 7266c96677d73816…

MALICIOUS

PDF

44.2 KB Created: 2021-06-13 22:21:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cf21b12f1c7ed50e5a8400118cde486c SHA-1: d0448a45e5d33521f43c2f22bb0e44cc11cf1bca SHA-256: 7266c96677d73816ed3a3b5f9f0abef82545a715b6ea38db7e9eb3cd55bd75ed
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting "free Robux generator hack" lures. The primary malicious URL identified is http://netcdn.co/app/431946152/free-robux-generator-hack-club-game-hack. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or scam attempt, likely intended to lead users to a site that may host further malware or attempt credential harvesting.

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/free-robux-generator-hack-club-game-hack In PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/hacks-roblox-kazui_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/hack-de-counter-blox-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/roblox-free-robux-hack-without-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/free-robux-giveaway-live-now-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/real-free-robux-obby_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/hack-para-apocalypse-rising-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/free-online-robux-generator-no-download-no-survey_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/how-to-cheat-on-you-roblox-girlfriend_GM431946152.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_off00004eaa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EAA 25948 bytes
SHA-256: a576a5c9a231dd6c1038e0868fa342cf57e269abcba605909d2453fdda3f3711
font_01_sfnt_off000089c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89C3 18588 bytes
SHA-256: 02fd119fa7c517a99b632203c0ba65915020e051e65d3a8b6f4ae571450ff117

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