Malicious PDF — malware analysis report

Static analysis result for SHA-256 0be03d2b8217494a…

MALICIOUS

PDF

45.5 KB Created: 2021-05-11 22:06:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5a275dbdbc9abd8aa28e6da2417cd721 SHA-1: 64b2bb42bb6f96997657c41d8e8a6cbc5a45e14a SHA-256: 0be03d2b8217494a2096e014da0c83dda3d7b2e92216267ba055b8572b16969e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting game hacks and generators. The primary malicious URL identified is https://netcdn.xyz/app/406889139/hack-game-plus-com-coin-master-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aiming to lead the user to potentially malicious content or further downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/hack-game-plus-com-coin-master-game-hack In PDF document text
    • http://uctovnictvosnv.sk/images/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/coinmasterhack-club_GM406889139.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/coin-master-game-hack-link_GM406889139.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b95.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B95 25396 bytes
SHA-256: 36c5c2b2464f03f785eca3041462d9d191ad64cf71d729d182c58af9fe9a5513
font_01_sfnt_off00008569.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8569 2868 bytes
SHA-256: d2d857e2ddc1082c7667b23f2135a5c0ba26a2ff8b42c86c89c8e0b09aece855
font_02_sfnt_off00008f54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F54 18344 bytes
SHA-256: 67e0faa45ea1c1ed6f200b64ded63a8801cb37d584db731deacfac1a4f2a4512

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