Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dda63771feac5b4…

MALICIOUS

PDF

44.2 KB Created: 2021-05-14 17:05:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-26
MD5: 80e7767c070a353ccfcbd479a2a5b18b SHA-1: 3026a9cf22f555baf6bf2ab6d53f288908bb46f0 SHA-256: 3dda63771feac5b4857bdc5580b8c01a84b9073f2d3221ab7fcd67ec2d238eb4
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/get-free-coin-master-coins-game-hack In PDF document text
    • http://jasperfirstumc.com/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/legit-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/coin-master-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://jasperfirstumc.com/images/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/coin-master-hack-without-verification-code-2021_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/weird-roblox_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/facebook-coin-master-hack_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_off00004b2f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B2F 24512 bytes
SHA-256: c6ea384d1d4a8f1929a9f1d5d6575f2478621ce4d2c23d8a03c8ca4aaa9c46b0
font_01_sfnt_off00008265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8265 2824 bytes
SHA-256: 381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
font_02_sfnt_off00008c08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C08 17712 bytes
SHA-256: 21945d37724c890dd621455a00f6108c8bb3199d41d839a53701429653b6b663