Malicious PDF — malware analysis report

Static analysis result for SHA-256 793b482ef410e951…

MALICIOUS

PDF

34.0 KB Created: 2021-07-02 00:14:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 3b2aa8e0b3bae1a4dd48ddac8d2277cf SHA-1: a6049f94efe1130c0d12e07eb5460719d8bdda45 SHA-256: 793b482ef410e95145b64730efe8b419206f980e491be0657f42abc453647c9f
188 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 6

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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/non-blocked-cheat-engine-roblox-game-hack In PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/pokemon-go-free-pokecoins_GM1094591345.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/get-free-robux-robloxcom_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-x-ray-hack-autohotkey_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/scp-anomaly-breach-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/script-hack-roblox-download_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/builder-assistant-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-spins-on-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-hair-roblox-no-model_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-games-no-scams_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/fightforglorton-free-l-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-command-cheat_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-robux-generator-no-hack_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-arsenal-hacks_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-teleport-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-robux-2021-easy_GM431946152.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_off00002dd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD2 22272 bytes
SHA-256: c215201dbe5893b462bf672a2c312e2c1b26ec0267c6e60a025ea5280c223953
font_01_sfnt_off00005f1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1E 19220 bytes
SHA-256: b9c5100f1e201f1fd4d8c6e1f14951d8713a69de471a91589300e02714c788fa

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