Malicious PDF — malware analysis report

Static analysis result for SHA-256 545f3bd8e6d576fe…

MALICIOUS

PDF

34.6 KB Created: 2021-06-27 03:50:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5df41c767a1e127c5f61eae0229c557e SHA-1: 730b804ed821fd741dade7c6a43e8bf0bb7c8399 SHA-256: 545f3bd8e6d576fe5d4129ba63dccace6e6e8e336ee1e94af7cd24439afea144
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and generators. The primary malicious URL identified is http://netcdn.co/app/431946152/roblox-scp-site-61-roleplay-free-morphs-game-hack. This indicates a social engineering tactic to trick users into visiting potentially harmful sites, likely for credential harvesting or malware distribution.

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-scp-site-61-roleplay-free-morphs-game-hack In PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/como-hackear-cualquier-juego-de-roblox_GM431946152.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/btools-free-download-roblox_GM431946152.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/bloxawards-hack-robux_GM431946152.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/latest-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-hack-android-2021_GM406889139.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/robux-offers_GM431946152.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/free-roblox-codes-that-works_GM431946152.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-heaven-daily-free-spins-and-coins-links_GM406889139.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/how-do-i-get-robux_GM431946152.pdfIn PDF document text
    • https://www.nonglong.go.th/ddd/UserFiles/File/robloxfun-com-robux_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_off000031dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31DC 21108 bytes
SHA-256: adbcef4c2b71235a957ca390b8f90f99b87b831622e3be64d96c5a335b50d904
font_01_sfnt_off00005fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB8 19868 bytes
SHA-256: 76f9980b9830510b30e32f61c6f9a094ade5935c2fee284f990ad91e9ced9298

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