Malicious PDF — malware analysis report

Static analysis result for SHA-256 445626ecea6a4e96…

MALICIOUS

PDF

33.6 KB Created: 2021-06-27 23:30:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-10
MD5: ad874d8838247fd3f559ebfc05d5f630 SHA-1: c3610d8ab749cef75a2f77c1f0fd43e70e60605d SHA-256: 445626ecea6a4e9671455fce7e98a825486c058cd84495a3273ee80e8e42669b
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.co/app/431946152/free-robux-we-game-hack In PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/minecraft-bedrock-download_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-hair-roblox-real_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/tiktok-free-names_GM835599320.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/hack-robloxco-youtube_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/dashing-simulator-roblox-hack-tutorial_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-spins-and-coins-com_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/demon-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/roblox-jailbreak-money-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-hack-to-get-robux-for-free-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-card-link-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-mod-apk-free-download_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_off00002d40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D40 22244 bytes
SHA-256: 1481e6f56506318657f68eafde97e8f87aa1f84d4ab1278ee66db5780d3e1dc3
font_01_sfnt_off00005ea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA1 18912 bytes
SHA-256: 1b7c5e8b141605633d203980431ccf24819974dc347606b2fb56ae9da54d4c58