Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c2c23f2b399f7fa…

MALICIOUS

PDF

35.1 KB Created: 2021-06-17 22:23:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5def55867f9de58c8091e8566317c4bf SHA-1: e31e1e2b87833ae949816f3c85b297c9c8f1463d SHA-256: 5c2c23f2b399f7fa2bacd4563bd97f6ad645c9a5b9cb72eb7ce379e467327a36
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as 'game hacks' and 'free spins'. The primary redirector URL is http://netcdn.co/app/431946152/speed-hack-roblox-code-game-hack, which is likely used to deliver a second-stage payload or lead to a phishing site. The ML classifier also flagged this PDF as malicious with high confidence.

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/speed-hack-roblox-code-game-hack In PDF document text
    • https://www.elevage-chiot.fr/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/roblox-com-games-referrer-roblox-player_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/tricky-nicky-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/how-to-get-the-prankster-face-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/coin-master-game-hacks_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/wurst-client_GM479516143.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_off0000304b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x304B 23612 bytes
SHA-256: 418ccb9cbe6fbe55c5e55f500d62d08c56a4487867b62ed63ba568c7533e6e2e
font_01_sfnt_off000064ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64BA 18820 bytes
SHA-256: 39f63d52e04ce877e2d8085c2aa1716cd9229e33d077a05b1ff05c3a3caddd3e

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