Malicious PDF — malware analysis report

Static analysis result for SHA-256 241f473251a79c5e…

MALICIOUS

PDF

47.6 KB Created: 2021-06-04 01:49:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a0a6f10e99c8f7b45d89c218bb80f619 SHA-1: 38084a7899cc3ccdfb96e66acbc25dfabb3c4e04 SHA-256: 241f473251a79c5e48de8ac3bef69d0cfe4d96acca2b750b0d22d0309dd8cd63
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and redirects to a malicious URL. The ML classifier strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristics suggest it is designed to lead the user to a potentially harmful website, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/406889139/reddit-coin-master-hack-game-hack PDF link annotation
    • http://library.stikessuakainsan.ac.id//repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-spins-for-coin-master-on-1-19-19_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-cheat-on-ramboredkill-in-roblox-2021-youtube_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/pokemon-go-free-7-day-streak-rewards_GM1094591345.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-mod-apk-latest-version-free-download_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052db.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52DB 26796 bytes
SHA-256: cba5683cae653eb021e32d1f6243b968f0443b72b67f810dfc6480330a024e4b
font_01_sfnt_off00008e5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E5E 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off00009849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9849 17888 bytes
SHA-256: 4ced6d1736eaf1183f21a550cef0691f5f50ec9f529720bbb8623e36addd1710

Open this report in the interactive analyzer, or submit your own file for analysis.