Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dded42370760b05…

MALICIOUS

PDF

34.0 KB Created: 2021-07-04 23:41:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-26
MD5: 2bcc2fdd4c63b3214ccea734ba9c3ecc SHA-1: d90bb1ccb475a0dc4f8a9a5e57c5838b0c99523f SHA-256: 3dded42370760b0529754502438c58dbd1d0d3eb846b54322a2d3d563ded5d5f
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/406889139/coin-master-free-coins-links-2021-game-hack In PDF document text
    • https://elibrary.sttar.ac.id/repository/free-robux-model_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/how-to-cheat-on-roblox-got-talent_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/roblox-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/coin-master-exchange-40-free-spins_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/nike-t-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-robux-meme_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-vip-server-roblox-anime-battlegrounds_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/speed-hack-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/coin-master-mod-version-free-download-2021_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/roblox-play-as-guest-free_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/coin-master-apk-mod-hack-download_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/coin-master-daily-free-spins-link-2021-today_GM406889139.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
font_00_sfnt_off00002ed3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED3 22608 bytes
SHA-256: 1bd0fed3b14f1f56ff79cb15e911e13d5c25e0b76ca40423f7e1babe18fdc585
font_01_sfnt_off00006127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6127 18568 bytes
SHA-256: 5c6f2b8c8950227f34c0c7c762a0319831c5dcbb819f0110f1dbfe9ff8d1e338

Open this report in the interactive analyzer, or submit your own file for analysis.