Malicious PDF — malware analysis report

Static analysis result for SHA-256 18acb6bc3ab04469…

MALICIOUS

PDF

34.1 KB Created: 2021-06-30 20:57:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5ec6cb29aab8763dd07a546526c29633 SHA-1: a5ca96ce697251e5da65c8ddfe80e90198f64617 SHA-256: 18acb6bc3ab044696a346f336136d7df61f391e7ef99daa91a36a3b2d8317a6e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure for free game currency or hacks, directing users to malicious redirector infrastructure. The embedded URLs, such as http://netcdn.co/app/431946152/www-free-robux-for-roblox-game-hack, are flagged as malicious. The document's content and structure strongly suggest a phishing or scam attempt designed to lead users to potentially harmful sites.

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/www-free-robux-for-roblox-game-hack In PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-btools-hack-download_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-roblox-accounts-dantdm_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-hack-apk-35-33_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-for-ps3-free_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-raid-hack_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-injector-for-roblox-v3rm_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/do-you-get-windows-10-minecraft-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-card-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-spins-coin-master-ios-links_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-roblox-skin-codes_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-hack-uk_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_off00002eab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EAB 22180 bytes
SHA-256: 7bdd6adf44f3d8e840a9a0dffe5160081517c2cef70eb1e5573574a7e88795ec
font_01_sfnt_off00005ffe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFE 19152 bytes
SHA-256: c9e91e6f517c389bf7dd88ab40c05d13a0afc058634d1585cdbc746a95ffd479

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