Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd290089655a52bd…

MALICIOUS

PDF

35.4 KB Created: 2021-06-28 20:45:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d0a6eadf4db6946f9ffe494204ae1401 SHA-1: 190f52167d4b8ef56ebe4a4f90dbb23ccd800a44 SHA-256: cd290089655a52bda964acc9f92a9aef424bc4e0d070c321d305b2184a14d915
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically advertising 'game hacks' and 'free generators' for popular games. The heuristic firings confirm these links are associated with malicious redirectors and lures. While no scripts were extracted, the document's structure and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful content or further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-free-clothes-on-roblox-without-bc-2021-game-hack In PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/free-robux-mod_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/pubg-uc-jazz-cash_GM1330123889.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/coin-master-admin-free-spins_GM406889139.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/daily-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/robux-withdraw_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/tiktok-download-free-jio-mobile_GM835599320.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/roblox-shirt-template-free-download_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F71 22892 bytes
SHA-256: 8bd39a3d363ef8fdaedc2b5c133cefd16e87914601f1f658fc9b714f09337d13
font_01_sfnt_off000062e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E6 19944 bytes
SHA-256: c6556f58a560392c741c444583a1e190030c9a894508349c4aaf0b74698798f6

Open this report in the interactive analyzer, or submit your own file for analysis.