Malicious PDF — malware analysis report

Static analysis result for SHA-256 02fe190cbc52fde5…

MALICIOUS

PDF

43.3 KB Created: 2021-05-16 00:32:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5cec8d4fb98a6ae0ef210a0c2baa075d SHA-1: ea331031efb0715ce2a096ac1aedb746ea487c9b SHA-256: 02fe190cbc52fde5dce895faf544879786ec7fa0915657367fb8959d45beb717
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links that redirect to malicious infrastructure, specifically promoting "free Robux" and "game hacks". The primary lure URL is https://netcdn.xyz/app/431946152/free-robux-no-email-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering tactic to drive users to potentially malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/free-robux-no-email-game-hack In PDF document text
    • http://www.centralbarbershop.ru/images/coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/game-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/robux-hack_GM431946152.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/robux-premium_GM431946152.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/coin-master-hack-tool-india_GM406889139.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/www-robux_GM431946152.pdfIn PDF document text
    • http://www.centralbarbershop.ru/images/roblox-skin-free_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
stream_003_off000049b0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49B0 26604 bytes
SHA-256: 689f884982cb115e045fae29f4aaf3874f36de0c314193da43eacd1712ae300e
font_01_sfnt_off0000860b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x860B 18696 bytes
SHA-256: c87d8ac99bb6295dbf621d5ce4d48bdb441e63486eed0d538621ad0af406e722