Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d15716873affd41…

MALICIOUS

PDF

45.3 KB Created: 2021-05-11 00:35:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 13ed8081e1162d587ddfc8183f799896 SHA-1: 094bfebcd7f5f6c9f5d5ab9b6bb1e1dda1aa3603 SHA-256: 1d15716873affd416fbac21527f02d5a58210026eab396c85f0fcefa1fac10c6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising 'game hacks' and 'free spins' for popular games. The primary malicious URL identified is https://netcdn.xyz/app/431946152/roblox-hack-ios-game-hack, which is flagged as a known malicious redirector. The document body and embedded links suggest a social engineering lure to trick users into visiting these sites, likely for further malware delivery or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9551

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/431946152/roblox-hack-ios-game-hack In PDF document text
    • http://library.umla.ac.id/repository/coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/roblox-free-body_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/minecraft-linux-free_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/download-coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-robux-no-verification-no-download-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000494d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x494D 25728 bytes
SHA-256: a7f356a2b74fb2fa595caff3e85a596189cd8cfb66bbd8fa3c6c286e64fa2e89
font_01_sfnt_off00008471.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8471 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00008e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E81 18184 bytes
SHA-256: f12c7157a0abee9a7103123c9d307fa47fe2494659220a603733cc764a4b7828

Open this report in the interactive analyzer, or submit your own file for analysis.