Malicious PDF — malware analysis report

Static analysis result for SHA-256 67ee35b72784403d…

MALICIOUS

PDF

32.8 KB Created: 2021-07-01 05:37:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ac1fd1349a412242dcf1c27053282744 SHA-1: 6ebdc1040c083b444883cf22d87a665396fededb SHA-256: 67ee35b72784403d4da242346a0c641839dfcdb30ed32642d1379aec15344787
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, masquerading as free game hacks and generators. The primary lure URL is http://netcdn.co/app/431946152/free-robux-generator-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector designed to trick users into visiting potentially harmful 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/free-robux-generator-game-hack In PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/clients-minecraft_GM479516143.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/robux-free-c_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/minecraft-cracked-client_GM479516143.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/roblox-how-to-upload-audio-free_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/free-4-mobile-24-robux_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/coin-master-cards_GM406889139.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/hack-roblox-tools-2021_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/roblox-admin-free_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/coin-master-free-coins-and-spins-link_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_off00002e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E2D 20968 bytes
SHA-256: 17bd2a2cb41961118a302dda93d03b41cd6b6d433ecd233800193a7a53a3688d
font_01_sfnt_off00005bbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBB 18820 bytes
SHA-256: da2f915db23b41a878f83961178ff4e79d82bfec54ff52f4ca014625624765bc

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