Malicious PDF — malware analysis report

Static analysis result for SHA-256 e59d8c070b928dc2…

MALICIOUS

PDF

50.9 KB Created: 2021-05-19 03:31:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3fea8cd2f4554d99576f068b66b757ad SHA-1: 549e35360612265e22dabd52d2522a7d32c62563 SHA-256: e59d8c070b928dc2b9a9793eebb0cde27c22da83115dcb89f415b74fdacc4960
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it is a malicious redirector lure, specifically targeting users interested in game hacks and generators. The primary embedded URL, https://netcdn.xyz/app/431946152/roblox-robux-generator-no-human-verification-game-hack, is flagged as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9348

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-robux-generator-no-human-verification-game-hack In PDF document text
    • http://unionmusicaldebenidorm.com/images/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/free-coin-spin-daily-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/do-robux-generators-work_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/coin-master-free-spins-link-may-2021_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/coin-master-60-spins_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/coin-master-fb-free-spins-link_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/coin-drop-master-free_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_off00004bf8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BF8 26136 bytes
SHA-256: be85ce0430aa3364bedb1e28ecbc1bb0d22b48610666a3c7627a15e4927f9a0c
font_01_sfnt_off00008721.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8721 8704 bytes
SHA-256: ddfd86c88a6b8304bc31eeb9f28c8110fac325cdacc87503bacf4ac741777490
font_02_sfnt_off0000a38b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA38B 18772 bytes
SHA-256: d70e1896760ce565ff795a6c5d74f9ef69d680ae9e1e6e3d1ff99995b7d1b431

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