Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc36b415537ff94…

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 18:03:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-30
MD5: 880cabd4fbe094c5243756cb1446b0fa SHA-1: 9d11d33f51c500ca7a8b8a3d3f5ad4900417c6e0 SHA-256: 1dc36b415537ff94c1726902ef21dfa26abd6900e629b07ed35e1ef0af74084b
160 Risk Score

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.tw/app/479516143/how-to-download-minecraft-for-free-on-mac-game-hack In PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-oof-combat-hack_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-prison-lif-ewall-hacking-2021_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-free-robux-2021-100-works_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/robux-xyz_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-the-guest-body-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-only-1-step-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-hack-on-roblox-tea-cup-hack_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/featured-items-on-roblox-free_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-free-robux-on-samsung-tablet_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-free-hats-on-roblox_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_off000031c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C4 22192 bytes
SHA-256: db30f5760a0df5f4e0553c520f8871b52b43a2007a4c20ae9eb3aab36daf6c1e
font_01_sfnt_off0000630f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630F 18576 bytes
SHA-256: 3db645ecb8fb9826ba7aaba3d1c82ef7ae8964096d6f8c3c07f5dc50e3a2044e

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