Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cd046781d98fc0f…

MALICIOUS

PDF

35.1 KB Created: 2021-07-01 05:17:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2ca1f0ec169728e6e0581ece22a3b902 SHA-1: ea017f59c9cde16b5b27b0a0fb99b1206e40b00a SHA-256: 3cd046781d98fc0f60aa30eb09878c928aa6d7206a41ef9a090b116e1570e782
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "free generator / game hack" which redirects to a known malicious URL. The ML classifier also flagged this PDF as malicious. The presence of embedded URLs and the lure suggest a phishing or scam attempt to redirect users to potentially malicious sites.

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/roblox-hack-generator-secret-hack-revealed-free-robux-game-hack In PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-safe-roblox-injector_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-level-7-hack_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/roblox-explosion-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-codes-pastebin_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-robux-generator-hack-2021-zn-game-online_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/minecraft-education-free_GM479516143.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-robux-no-scam-on-a-computer_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE7 23552 bytes
SHA-256: 2c06428a7fc605d465b7602155bf9cf9a13f37905bd36e62ab1e01aa83756369
font_01_sfnt_off00006341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6341 19220 bytes
SHA-256: a7d76f811ca0cef1462c5f5b53a9883f40795a508825bbc39408c4e638dede65

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