Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c9dac3047a3e4a9…

MALICIOUS

PDF

34.2 KB Created: 2021-07-06 01:54:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 8ba0ccd81b00424625291bc7135f8bdc SHA-1: aaf3855d4bdd64eb09e076b14146d9a626bfeccd SHA-256: 4c9dac3047a3e4a990264d2c39e6dcc337af27cde27d7b6894628933d09f9150
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/free-minecraft-education-edition-game-hack PDF link annotation
    • http://suaedy-library.net/repository/robux-generator-that-works_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/robloxgainer-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-hack-peoples-account-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-schrt-in-robux-brighschows_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-walk-through-walls-roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/minecraft-wurst_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/cheat-engine-roblox-torso_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/is-there-any-tricks-or-working-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off000030bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30BD 22536 bytes
SHA-256: c1a3138f0950e0732a8e4d05a4af98550a5ad1e0d67f866d13885e4413fa30d5
font_01_sfnt_off00006315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6315 18312 bytes
SHA-256: ea04fd3d915771084383886fc7ce1b63e4bd6f30d828a1dfcfd5e13c50d9d279

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