Malicious PDF — malware analysis report

Static analysis result for SHA-256 919875a55d64d840…

MALICIOUS

PDF

35.2 KB Created: 2021-06-25 20:47:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9bfa5be1da6221dda8223816f6424fca SHA-1: 0859e073313c82a722c1dce0e11d82aeccec160b SHA-256: 919875a55d64d840428c6a3115548e361ba0ef31b7b557b3d5950829cb25c455
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a link that is identified as a malicious redirector, specifically luring users with the promise of game hacks. The embedded URL, http://netcdn.co/app/431946152/cheats-for-doengeon-quest-in-roblox-game-hack, is the primary indicator of malicious intent. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that this is a phishing or scam attempt.

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/cheats-for-doengeon-quest-in-roblox-game-hack In PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/robux-free-online_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox-on-tablet_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/cant-make-my-items-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/cheat-codes-for-roblox-mad-city-cash_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/rocash-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/how-tom-get-games-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/bird-simulator-roblox-hack-eagle_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/pokemon-go-free-money_GM1094591345.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/rbx-claim_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/hack-master-coin-pc_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_off00003237.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3237 22244 bytes
SHA-256: f2f5bf55f5a53a1e562d96cd61939848f1bda1777b7dcc06b9aa59152b473f10
font_01_sfnt_off000063a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A2 19384 bytes
SHA-256: f5e77497807b913a218c5b9857f06e07aeeab6835261531917736fe7298b5080

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