Malicious PDF — malware analysis report

Static analysis result for SHA-256 5686993820951ad0…

MALICIOUS

PDF

34.5 KB Created: 2021-06-30 07:38:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9d1a392e80c67eb6da78bcb57ad92cc0 SHA-1: ad292de53cf81c44b177887338d17c54d5a80afc SHA-256: 5686993820951ad0018d32a0b3ccc9cb5463e31aa8ee18f2784ed3e0792ac0a8
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded links to known malicious redirector infrastructure, specifically http://netcdn.co/app/431946152/nopde-engine-6.4-roblox-hacks-game-hack, which likely serves as a lure for downloading malware. The document body and numerous embedded URLs suggest a social engineering attempt to trick users into downloading game-related hacks or cheats. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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/nopde-engine-6.4-roblox-hacks-game-hack In PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-to-get-free-robux-that-really-works-without-card_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/roblox-legendary-swords-rpg-level-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/hack-cia-robux-gratis_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/roblox-free-builder-club-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-to-get-robux-iphone-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-to-get-free-robux-in-claim-gg_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-roblox-videos_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-roblox-accountsd_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/code-for-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/da-hood-hack-tuto-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-do-you-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/is-roblox-on-ps4-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-robux-codes-mobile_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9E 22124 bytes
SHA-256: 7523e5c4fada5f01a69647978a8920665693a5489b4a0e6c2adc8b6bf0d851a7
font_01_sfnt_off0000608e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608E 19424 bytes
SHA-256: f0d0c12f79d87467c8e41b246f783a3140bd590726fe21f0614e60fa5b6494f1

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