Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ea3b670ed0e586…

MALICIOUS

PDF

33.5 KB Created: 2021-07-05 07:58:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-21
MD5: c9f78304ce2bacc46d77c26ee5b88428 SHA-1: c966c0e4264eaa38047177fe15834a8a09f9bf9e SHA-256: d3ea3b670ed0e586430dc23931761436d85c7b529f7c206b7fe55ba74c47efd3
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/431946152/roblox-gang-game-hack In PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-hack-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/denis-free-robux-obby-omg_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/cheat-codes-for-hoes-roblox-song-id-bypassed_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-minecraft-shaders_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-gang_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-v3rmillion_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/app-para-hackear-cuentas-de-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-drivetm-hack_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-70-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-roblox-supreme-roblox-shirt_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/surf-hack-script-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/is-minecraft-vr-free_GM479516143.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_off00002e18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E18 22180 bytes
SHA-256: 41ca9a9098ca09337344528c06f408dd056b1aac514a77deda1cd982a6272a44
font_01_sfnt_off00005f3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3A 18484 bytes
SHA-256: 29f392fad5126cc1b661e988d151d83fa60bd2500465ef97b0a10363f3654a7c