Malicious PDF — malware analysis report

Static analysis result for SHA-256 20a0cc5ec2f4a5d4…

MALICIOUS

PDF

33.7 KB Created: 2021-07-03 18:20:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 48a5a66b335ad8420c1022215a4fd28e SHA-1: 95890308853c8d6230dc5bfb2a8b1ee1ff741335 SHA-256: 20a0cc5ec2f4a5d4bbf7834c6303502d023ca791ca6bc18211f1843e8fb67ae7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a prominent link disguised as a 'game hack' or 'free generator' lure, which is a common tactic for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious. While no scripts were extracted, the embedded URI points to a suspicious domain associated with such lures, suggesting the document's primary purpose is to redirect users to a malicious site.

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/431946152/robux-offer-wall-game-hack PDF link annotation
    • http://fkunismuh.org/perpustakaan//repository/open-coin-master_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-get-free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-how-to-change-your-skin-for-free_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/btools-hack-pastbin-roblox_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/master-coins-free_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/cheat-roblox-tire-dans-les-mur_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/facebook-coin-master_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-robux-app-2021_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
font_00_sfnt_off00002fcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCD 21624 bytes
SHA-256: 608c486db81f588ecd98ba5af85217f589a1ba8f3e3dc4c3d560c1a7ceb5c663
font_01_sfnt_off00005f46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F46 18824 bytes
SHA-256: e8c28850c010c1215c7b926fc0b71a2cd0ef8286ab5f41690e7fda9418183c37

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