Malicious PDF — malware analysis report

Static analysis result for SHA-256 436fdb4f97b959e3…

MALICIOUS

PDF

46.0 KB Created: 2021-05-14 20:35:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f4a90b70f7ff2e0da353c85a7ff2c75a SHA-1: 63b3c08f40c3e5f9c0f2d635f2f931d7cb1b946e SHA-256: 436fdb4f97b959e3f23c446186a1d573f54e56a58704e7304efde4e9e035ab15
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a game hack or generator. The primary link, https://netcdn.xyz/app/479516143/free-minecraft-windows-10-with-java-game-hack, is flagged as a known malicious redirector. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful websites. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/479516143/free-minecraft-windows-10-with-java-game-hack In PDF document text
    • https://www.les-sp.org/images/coin-master-hack-apk-facebook-login_GM406889139.pdfIn PDF document text
    • https://www.les-sp.org/images/https-oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.les-sp.org/images/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • https://www.les-sp.org/images/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdfIn PDF document text
    • https://www.les-sp.org/images/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/robux-claimer_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://www.les-sp.org/images/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • https://www.les-sp.org/images/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • https://www.les-sp.org/images/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
    • https://www.les-sp.org/images/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • https://www.les-sp.org/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • https://www.les-sp.org/images/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • https://www.les-sp.org/images/free-robux-hacker-us_GM431946152.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_off00004beb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BEB 25368 bytes
SHA-256: 8a07fc55e675c49a678af73f68915dc9a0d1d9053e17781ef746fa7cf96942eb
font_01_sfnt_off00008521.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8521 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008f0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F0C 18972 bytes
SHA-256: f8addffde6ee253966e41eae90cec454d3cd0db0a10e1e45b392757e131b0e3a

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