Malicious PDF — malware analysis report

Static analysis result for SHA-256 52197ee8de617928…

MALICIOUS

PDF

36.0 KB Created: 2021-06-27 09:17:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6463d581a1ab72e32b03f9218475a1b2 SHA-1: da76b94d8c1260319d4747fc59aeeda3ef5e5333 SHA-256: 52197ee8de61792883882a22ca98289159c8f53ad0bc2d3e6ac4febee17ae9f9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on them by promising free game hacks and generators. The primary link, http://netcdn.co/app/431946152/good-roblox-games-about-cities-for-free-game-hack, is identified as a malicious redirector. The document's structure and embedded URLs suggest an attempt to deliver a malicious payload or phish for credentials under the guise of providing game-related cheats.

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/good-roblox-games-about-cities-for-free-game-hack In PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/ninja-legends-roblox-hacked-pet_GM431946152.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/tiktok-fame-free_GM835599320.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/coin-master-fun-free-spins_GM406889139.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/coin-master-free-spin-best-link_GM406889139.pdfIn PDF document text
    • https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/walking-though-hack-roblox_GM431946152.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/coin-master-sound-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/como-hackear-coin-master-gratis_GM406889139.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/coin-master-free-cards-link-2021-today_GM406889139.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/free-robux-in-less-than-10-seconds_GM431946152.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/roblox-script-executor-free_GM431946152.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/roblox-game-pass-hack-2021_GM431946152.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/free-spins-coin-master-links-app_GM406889139.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://hullerkopipagaralam.com/ckfinder/userfiles/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/my/tasksIn 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_off000032d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32D7 23012 bytes
SHA-256: 35cd4804fb1f6ef7b1829481bbcc30d96ee184ba3ab1cc35c8fc3e09ffb39d15
font_01_sfnt_off00006686.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6686 19448 bytes
SHA-256: 7d26398b8fd887d254f8059445de4641f7a2c61a18cb46cab69f21cf4bd3b21e

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