Malicious PDF — malware analysis report

Static analysis result for SHA-256 376fa65ce87ff19d…

MALICIOUS

PDF

42.4 KB Created: 2021-06-04 02:52:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c8178428fe9c8675ce46071adeb3a1ce SHA-1: 6afcf4566cde9952ce2d1a6bf9db82f5ebfbfe52 SHA-256: 376fa65ce87ff19d5e75469398f4524d26c2a8c239ec04ed816fc7e5a381dfb0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, specifically advertising free generators or game hacks. The document body, though heavily corrupted, contains a URL that matches the malicious redirector. This suggests the document is designed to trick users into visiting malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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/835599320/free-movie-websites-tiktok-game-hack In PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/how-to-give-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/roblox-its-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-online-free-spin_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-hack-without-human-verification-india_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-tiktok-bots_GM835599320.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/daily-coin-master_GM406889139.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_off00004b27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B27 24720 bytes
SHA-256: 65940b64edecaf70ce53649dd51a60a5a5f2bd00ea50e736881a3c0ec76eb695
font_01_sfnt_off0000834a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x834A 18120 bytes
SHA-256: 0d46e1f0dc9849b851c271e4d540c3f052a0d1927a07f72cfed4575bd3b5ed29

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