Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dd48cc743425212…

MALICIOUS

PDF

42.1 KB Created: 2021-05-17 10:15:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6e82dc5348ef07d4608ba7f8859876d9 SHA-1: 6375451285a5352c6053e91f354f72615dce4a0c SHA-256: 4dd48cc74342521219dd9e2a4594927f147f099e97d4bd788e23030de687a3d1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, disguised as game hacks and cheats. The ML classifier strongly flagged this PDF as malicious. The embedded URLs likely serve as a lure to download further malicious content or lead to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-hack-game-download-game-hack In PDF document text
    • http://j-cook.pro/images/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://j-cook.pro/images/how-to-hack-coin-master-apkmody_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/how-to-get-free-spins-on-coin-master-2021-iphone_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://j-cook.pro/images/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/roblox-2021_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://j-cook.pro/images/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • http://j-cook.pro/images/roblox-generator_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
stream_003_off000049ec.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49EC 24360 bytes
SHA-256: e93b3c92a2186dd6fab8a92983ec4ed184870b11ddb50cbf6e3311b11f99db36
font_01_sfnt_off00008134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8134 18556 bytes
SHA-256: 89621ed490658390f1fc014040a62f50e37bffa9e55a8f0811625641fd44cbe0

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