Malicious PDF — malware analysis report

Static analysis result for SHA-256 94c51fb6172740df…

MALICIOUS

PDF

36.2 KB Created: 2021-06-29 18:57:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 455107a0a611b840902ceda68e94c7aa SHA-1: 0439f56d256277e9cca3a586834fb3400e9487e5 SHA-256: 94c51fb6172740df64ef6a3fefe22ac28588ad6c894ce3670c8de3d12afd7dfc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a known malicious domain, masquerading as a game hack generator. The document body and heuristics indicate a lure to trick users into visiting this malicious site, likely for further exploitation or malware delivery. No scripts were extracted, but the presence of malicious links and the ML classifier strongly suggest malicious intent.

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/hack-pc-with-cheat-engine-roblox-game-hack In PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-hack-mad-city-in-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/hacks-in-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spin-app-reviews_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/cool-free-roblox-charecters-uu_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-noclip-cheat-engine-download_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/http-roblox-hack-top_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-send-a-trade-on-roblox-free_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-bugatti-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/robuxfree-con_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-hacker-shirt-template_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/speed-hack-roblox-jailbreak-cheat-engine_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/april-fools-day-2021-hack-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-place-view-bot-hack-fourme_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/daily-free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-admin-on-roblox-ios_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-giant-dance-off-simulator-free-maschrum-pack_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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
font_00_sfnt_off0000348e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x348E 22840 bytes
SHA-256: 626584c0f77ac8a1e9daf38549d9292aacf5e81307058d28962761ec2139e2ef
font_01_sfnt_off00006775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6775 19396 bytes
SHA-256: 8ebec5f29feb8462c8968d4a45022891b45d9575ae4d389bbf14ac85a77e94e9

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