Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d20865d7bba9885…

MALICIOUS

PDF

35.4 KB Created: 2021-06-29 14:06:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 39fbc322d5e408525b5ead3b68f1da0a SHA-1: d221e0150d8e2f3635997f8d8ea60db66fecb176 SHA-256: 9d20865d7bba98850acdb8a731bd05164b78f0824286375b82929bcb491878c2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to Roblox game hacks and free items to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or exploits. The presence of numerous similar URLs suggests a campaign focused on phishing for game-related credentials or distributing malware.

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/roblox-dungeon-quest-lvl-hack-game-hack In PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/epic-mini-games-cheats-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-gamecards-redeem-2021-free_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/anti-speed-hack-script-undetected-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-free-admin-script_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/los-hacker-de-roblox-mas-peligrosos_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-can-u-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-hack-ronlox-infinity-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/new-roblox-free-faces_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/play-hacked-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/speed-run-4-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-hack-client-android_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/sex-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-pet-simulator-cheat-codes_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/denisdaily-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/gg-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-gift-cards-cods-for-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-gift-card-20210-robux-codes-2021_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_off000032e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32E8 22300 bytes
SHA-256: f0662afd497e2b07a9fe5f98782efc9ecfb6b7f8f336341f0ac03daeaffc4e8d
font_01_sfnt_off00006433.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6433 19340 bytes
SHA-256: 6fce93c51caeb402b7b5e41ef4f43c8075d1f1240737a0a49a092be20b977480

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