Malicious PDF — malware analysis report

Static analysis result for SHA-256 18474d828921a492…

MALICIOUS

PDF

34.1 KB Created: 2021-06-18 06:25:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 74cc6fb6b9d2899e0dda6307f447762c SHA-1: 9237e178a4dcc99059ec0251dd43259db181b00a SHA-256: 18474d828921a492366e28c840cacd914bf6bb5d4b876cc18bbb5102b69781ac
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 generators'. The primary lure, 'How To Hack Robux 2021 In 1 Min', directs users to http://netcdn.co/app/431946152/how-to-hack-robux-2021-in-1-min-game-hack, which is flagged as malicious infrastructure. While no scripts were extracted, the document's structure and embedded URLs strongly indicate a phishing or malware distribution 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/how-to-hack-robux-2021-in-1-min-game-hack In PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/roblox-sex-cheat-code_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/roblox-games-that-give-you-free-stuff_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/hack-accounts-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/minecraft-pe_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/roblox-robux-hack-apk-no-human-verification_GM431946152.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_off00002e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E3F 22132 bytes
SHA-256: 599cc252e3b8dd56828a92f876913057b8dafee127c33b7b707e33c492d6099b
font_01_sfnt_off00005eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EED 19416 bytes
SHA-256: ff41a1d3b87c19bb1885894446d4a5df4246de8e686d1843fa0a8b91d418625b

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