Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8fba731b241927b…

MALICIOUS

PDF

35.1 KB Created: 2021-07-09 04:06:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 07fe5b0108e74e90f023faf85a9591ec SHA-1: 1ff61c0fd57bf63f9689c4a9a8fd2403293d5012 SHA-256: c8fba731b241927b4a7a2b991f04a6cf8905743ce480d5f0a6dc3c8d10a952db
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into downloading "game hacks" or "free generators." The primary link, http://netcdn.tw/app/431946152/roblox-hacked-version-download-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a social engineering tactic to lead users to potentially malicious downloads or further phishing attempts. The ML classifier also flagged this document as malicious.

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/431946152/roblox-hacked-version-download-game-hack In PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/roblox-cheats-for-robux-android_GM431946152.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/free-robux-please_GM431946152.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/tuto-hacker-sur-prison-life-roblox_GM431946152.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/lua-scripting-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/tiktok-free-unlimited-likes_GM835599320.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/free-bird-guitar-solo-roblox_GM431946152.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/how-to-hack-accounts-on-roblox-may-2021_GM431946152.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/free-money-script-roblox_GM431946152.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/roblox-fun-com-free-robux_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
font_00_sfnt_off00003048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3048 22528 bytes
SHA-256: 037a7723fbf978f7e78a2be6e6b3ad57a28d2a5cafa554953f5577de4acff7bb
font_01_sfnt_off000062c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C2 19416 bytes
SHA-256: 9d5287d246acb7a414ddd994cb225a807af433da1dde6decd511f50bd1ef31e8

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