Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6df467d1a3553a1…

MALICIOUS

PDF

48.1 KB Created: 2021-06-03 14:48:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c057e1819d9c5f4d407fcd4ea0936489 SHA-1: e28161f5acb8c8d1bf09db85004d499779706229 SHA-256: e6df467d1a3553a111d6ebe33cbb32c52284188195c3b9f8345abbcb2d18b885
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a lure for free game currency or hacks, directing users to a malicious URL. The embedded link, https://netcdn.online/app/431946152/game-give-free-robux-game-hack, is flagged as malicious infrastructure. The document's structure and embedded links suggest it is designed to trick users into visiting potentially harmful sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/game-give-free-robux-game-hack In PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-hack-apk-july-2021_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/aimbot-exe-roblox_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/freer-pro-tiktok_GM835599320.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-free-spins-that-really_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-spin-coin-master-app-download_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-to-get-java-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/minecraft-bedrock-download_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-roblox-cards-pin-number_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/best-minecraft-hacked-client-2021_GM479516143.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_004_off00004fad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FAD 25528 bytes
SHA-256: 0e6b398b3ae09db1c77dc91a3364e909a336031a8c0135e92581791d94105300
font_01_sfnt_off00008b5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B5E 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00009806.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9806 18736 bytes
SHA-256: 457049c0c0b067ea8a2ccaf5c24f39a354f8c872058b648fa686429afe9091ea

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