Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ac0dead06e594e5…

MALICIOUS

PDF

35.3 KB Created: 2021-06-18 07:40:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a4218b9fef5cb2051a62430f20b19f1f SHA-1: 90932635531e385270df2b29a3a0ff96482d3c1b SHA-256: 5ac0dead06e594e5e3b5f4241dda47370882b7bbf44b8089c8c6e21c2c8e0459
160 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and text that promote cheats and hacks for popular games, aiming to trick users into downloading malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports a malicious intent. The document body and extracted URLs suggest a lure for game-related exploits.

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/cheats-for-roblox-bee-swarm-simulator-game-hack In PDF document text
    • https://opac.umrah.ac.id/repository/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-premium-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-do-i-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/tiktok-free-crowncom_GM835599320.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/synapse-free-download-roblox-hack_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-hack-online-no-survey_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/robux-hack-without-apps_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-hack-copy-and-paste_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-owo-whats-this-t-shirt-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-call-meh-bob-roblox-youtubecom_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-toy-codes_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_off0000305c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x305C 22796 bytes
SHA-256: b948482e1fd3f54de8bb90ae415728b8b5349b8551ea2d81e7f9f94bda642725
font_01_sfnt_off00006395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6395 19604 bytes
SHA-256: d49ea1cbafe263c775e3e364cfc6a59c262728a5d454d7bf921c11e98a5c9d67

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