Malicious PDF — malware analysis report

Static analysis result for SHA-256 df63545743dc422f…

MALICIOUS

PDF

34.8 KB Created: 2021-06-28 23:12:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 348df6beba82df9fe225359eb1fe5f27 SHA-1: 0812157c7c2b012e6a0530a8e384b6144489cd7a SHA-256: df63545743dc422fa4ba659798243b00d5fde5d4c4b28f609243c59780b72c53
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains lures for game hacks and free currency, directing users to a known malicious redirector. The primary URL, http://netcdn.co/app/431946152/roblox-cheats-how-to-get-free-stuff-game-hack, is associated with malicious redirector infrastructure. The document body and embedded URLs reinforce this lure, suggesting an attempt to trick users into visiting 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/roblox-cheats-how-to-get-free-stuff-game-hack In PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-lag-cheat_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-no-head-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/freespinandcoin_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-hack-download-windows-10_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/hack-prison-miner-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-cheats-card_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-free-item-codes_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/youtube-link-to-roblox-jailbreak-hack-music_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/is-free-followers-on-tiktok-free_GM835599320.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/hack-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-earning-website_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_off000030e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E9 22320 bytes
SHA-256: cf03e43af4dbc3dbb63e49f9506443829b07407c556c3a0ec2e6355a041ac8b0
font_01_sfnt_off0000628d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628D 19224 bytes
SHA-256: 276cff309d2ee0345048fe07e30fcaa97515c76b101d82e809c6b6df19c026b2

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