Malicious PDF — malware analysis report

Static analysis result for SHA-256 662211ebe51d1b79…

MALICIOUS

PDF

35.5 KB Created: 2021-06-20 00:09:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d02f3171b419df1d1f272a6a3cca28bb SHA-1: 876d0c7d596af6cc0eee865020c68b518fc32e40 SHA-256: 662211ebe51d1b798c9caeb0798e49a9914def53834ede4e999d1c9c994fd1c8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure URL is http://netcdn.co/app/431946152/roblox-pokemon-brick-bronze-shiny-hack-game-hack. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/roblox-pokemon-brick-bronze-shiny-hack-game-hack In PDF document text
    • http://elibrary.smknesbu.sch.id/repository/robux-gainer_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/get-free-lives-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-account-roblox-real_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-website-promo-codes_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-hack-roblox-on-youtube-on-your-phone_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/robux-hacks-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/robux-pastebin-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/robuxmatchcon_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-kat-hack_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_off00003176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3176 22848 bytes
SHA-256: 19d81cbedf06314c27c35aa040b0a60f5a955f7148f420bbfc4a8a3e0757f5fa
font_01_sfnt_off00006426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6426 19620 bytes
SHA-256: 62c27467dba7e7941730cf8dc6dc4e69843418a91f7a2bc5cf6177e0a2cca9b8

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