Malicious PDF — malware analysis report

Static analysis result for SHA-256 47d1b9de786ecb76…

MALICIOUS

PDF

43.6 KB Created: 2021-06-03 23:35:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cf4fbf0d0763b5d7d63b44410699f5d3 SHA-1: ec33146478340e3f8a499b495191c2ab928400bf SHA-256: 47d1b9de786ecb768204f17396a243ef9f69a9ce7d656c56a57d0d1e708523b0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for free game currency and hacks, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it links to known malicious redirector infrastructure. The embedded URL is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/robux-gratis-game-hack In PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-gang_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-400-spin-link-today_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/earn-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-download_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-the-complete-handbook-collection_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/robux-gift-card-free_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_004_off0000503c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x503C 24152 bytes
SHA-256: 616057b8b365566f7194efbd14d477de6899d7afd8d896963d648a7d3fcedcbb
font_01_sfnt_off00008786.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8786 18300 bytes
SHA-256: 5b7956b367e7034c1d89c4bcafd3a8b19a23372aa7741d4527a1b7b8c092ce2f