Malicious PDF — malware analysis report

Static analysis result for SHA-256 e968a5dcaa7472e9…

MALICIOUS

PDF

41.3 KB Created: 2021-05-14 23:05:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 70ec50c93222cbbd898a63bb4a153d5c SHA-1: 245d1db2c90fa7b232ac2b1b8938fde8891caa85 SHA-256: e968a5dcaa7472e90432b199e16040760cf0ff1874058c111662a6bdc7d3da3e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The ML classifier strongly flagged this PDF as malicious. The embedded URLs and the document body content indicate a social engineering lure to trick users into visiting potentially harmful 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/how-to-get-free-coins-in-coin-master-game-hack In PDF document text
    • http://killebergsridsport.se/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://killebergsridsport.se/images/play-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/roblox-exploit-download_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/coin-master-admin-free-spins_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-magical-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • http://killebergsridsport.se/images/coin-master-download_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://killebergsridsport.se/images/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/minecraft-bedrock-server-hosting-free_GM479516143.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_off00004968.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4968 25012 bytes
SHA-256: 0334dac45199e9155b293e0c3a5422500c2a4fe41c642a662982a473e2b08191
font_01_sfnt_off0000806a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x806A 17872 bytes
SHA-256: ea6dcb3ab890178a05547e3161835c8edeffae3732ad32b35eba99407f3e1bd5

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