Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bde6f0c03659bd1…

MALICIOUS

PDF

34.3 KB Created: 2021-06-18 02:47:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aecdda4fd78c1bb7fbe5bea0a3c939fb SHA-1: 28a69883ebd91169abd36fdb89cf2289761cf799 SHA-256: 6bde6f0c03659bd1e7406a871cb178b4b8baa331e5a1fe2172e87b33a84ef5aa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors, specifically targeting users interested in game hacks and free generators for popular games like Roblox and Coin Master. The primary lure URL, http://netcdn.co/app/431946152/roblox-to-play-games-for-free-game-hack, is flagged as malicious. While no scripts were extracted, the document's structure and embedded URLs strongly suggest 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/roblox-to-play-games-for-free-game-hack In PDF document text
    • http://ghi.dk/billeder/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • http://ghi.dk/billeder/mosttechs-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://ghi.dk/billeder/coin-master-hack-generator-tool_GM406889139.pdfIn PDF document text
    • http://ghi.dk/billeder/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
    • http://ghi.dk/billeder/comment-avoir-des-robux-gratuitement-no-hack_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • http://ghi.dk/billeder/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • http://ghi.dk/billeder/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://ghi.dk/billeder/open-coin-master_GM406889139.pdfIn PDF document text
    • http://ghi.dk/billeder/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • http://ghi.dk/billeder/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ghi.dk/billeder/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/com-roblox_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/coin-master-hack-apk-35-33_GM406889139.pdfIn PDF document text
    • http://ghi.dk/billeder/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://ghi.dk/billeder/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://ghi.dk/billeder/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/coin-master-free-coins-and-spins_GM406889139.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_off0000300f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300F 22040 bytes
SHA-256: dab5908cb12ed8da73a4acf5c6b75338060e57460e47b7e274a3102f7531c1f2
font_01_sfnt_off0000610f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610F 19060 bytes
SHA-256: bf9d32b453227214bf7337144c3e21875a918d790ff21c060141f809077d62e9

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