Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5f09795a4ff5104…

MALICIOUS

PDF

41.8 KB Created: 2021-05-13 01:39:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 62001fef3ad830edf33d72502af0ddd1 SHA-1: 59aa73f09a6f87d7f073fd5f63e2113e9bc68413 SHA-256: a5f09795a4ff510404a658e9c993ef10ecdb2568693c561f8f22e9a334214b02
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free currency. The primary malicious link identified is https://netcdn.xyz/app/406889139/coin-master-spin-free-game-hack, which is associated with a "free generator / game hack" lure. The document body and embedded URLs suggest a phishing or scam attempt to trick users into visiting malicious sites, likely for credential harvesting or malware distribution.

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-spin-free-game-hack In PDF document text
    • http://poonhilltreks.com/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/robux-survey_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/daily-spin_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/rape-simulator_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-free-spins-2021-ios_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/are-robux-generators-safe_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
stream_003_off000048f0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48F0 25376 bytes
SHA-256: de0ab1e63cf1fa4fb7459344e27aa6ac2a1270556ccc2c9e555f7bd7af17c0ca
font_01_sfnt_off00008255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8255 17884 bytes
SHA-256: f64f8d8cd546afe107dcd88d9ce91258665e3d619825ef5ba403a2abc0c27184

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