Malicious PDF — malware analysis report

Static analysis result for SHA-256 6554964a06dce982…

MALICIOUS

PDF

34.5 KB Created: 2021-07-08 11:40:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2331d30ec5fa643fabb26c049909ab04 SHA-1: ae263c2f84f144c152b85261db86d9b5664d9ae2 SHA-256: 6554964a06dce98294918560e4af6344cdb7f651c431e6ea8cad14e03415f581
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, disguised as 'free generator' or 'game hack' lures. The primary redirector URL is http://netcdn.tw/app/835599320/free-tiktok-followers-app-game-hack. The document body and embedded URLs reinforce the theme of exploiting popular games and social media platforms to trick users into visiting malicious sites. No scripts were extracted from this sample.

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.tw/app/835599320/free-tiktok-followers-app-game-hack In PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/coin-master-hacks-for-android_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/how-to-get-free-hair-on-roblox-no-inspect-element_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/how-to-make-robux_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/free-coin-master-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/best-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/coin-free-spin_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/free-1-million-robux_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/sb-game-hacker-coin-master_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/free-robux-net_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_off000032c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C4 22052 bytes
SHA-256: 115b580e30dbc4832431e368259dab3f469eec36292747bdcce0a3b26ea35324
font_01_sfnt_off000063b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B7 18388 bytes
SHA-256: 8a8135789406fdd3dd1ae3803c971850983b1ad06dee98193bf3f77445e9dc0c

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