Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc2ee16d497e5286…

MALICIOUS

PDF

42.1 KB Created: 2021-05-12 09:33:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: db22478935414e400e377d12e3b3db85 SHA-1: 021c7c8c7dd9a6b7811856893e5c60f0097fcf90 SHA-256: cc2ee16d497e52862dabe32e62e2bd00c724d923390b20722923d0e288e5e839
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a known malicious infrastructure, specifically advertising free game hacks and generators. The ML classifier also flagged this PDF as malicious. The document body, though heavily obfuscated, contains references to the malicious URL, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/roblox-toy-codes-free-game-hack In PDF document text
    • https://library.fdk.ac.id/repository/roblox-free-pants_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/easy-roblox-today_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-hack-club_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-www-com_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/robux-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_off00004900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4900 24744 bytes
SHA-256: ebcab0b1aba9efa8c3e35ee826ef2f8c1069d020b398bd865d994b02c6c859c4
font_01_sfnt_off00008220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8220 18300 bytes
SHA-256: 3d5b3d92e216065c2c845e8efa57a9453f648cbb701c9c0f5d074002979813ea