Malicious PDF — malware analysis report

Static analysis result for SHA-256 6202173544c57352…

MALICIOUS

PDF

45.1 KB Created: 2021-05-15 16:03:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 05e06d6f8786371cf627c10093be054f SHA-1: cc9ff973663aca895b17224e1db33255e4084fc5 SHA-256: 6202173544c57352fe70fff528cbf41a434cf0575a6a039d816ba69c779a8e54
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to malicious infrastructure, masquerading as a 'free Robux generator'. The document body and heuristics indicate a lure designed to trick users into visiting these malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to lead the user to a compromised site, likely for further exploitation or credential harvesting.

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 https://netcdn.xyz/app/431946152/free-robux-kid-friendly-no-human-verification-game-hack In PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/free-minecraft-severs_GM479516143.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/coin-master-free-daily-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://www.highlandernepal.com/assets/ckfinder/userfiles/files/roblox-generator-com_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_off00004ea6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EA6 26672 bytes
SHA-256: 6ac37b28ce25c38436d80a0aee99aae6147e9255b0cdbfca668cf1be0321c6c5
font_01_sfnt_off00008b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3D 19288 bytes
SHA-256: ea469787df873758e357019bb53a1e3c4242eb718badaf8706c42bdc2f61c813