Malicious PDF — malware analysis report

Static analysis result for SHA-256 54ec6726f16680d5…

MALICIOUS

PDF

34.7 KB Created: 2021-06-30 02:34:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e5bbc475754aef40151270149fdf1d12 SHA-1: ab43c04ea3f0db72b23d359d72941ee020d2444c SHA-256: 54ec6726f16680d56c587a47b01ad31a07d4fa1a7f9a24f7e57ba4ccea266181
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic firing for a game hack redirect lure, pointing to a specific URL. The document body also contains this URL, reinforcing the lure. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the nature of the lure suggests it's designed to trick users into downloading further malicious content or visiting a phishing 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.co/app/431946152/chat-hack-roblox-script-game-hack PDF link annotation
    • http://www.perpusffup.or.id/repository/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/get-more-robux_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/https-oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/hack-roblox-espaol_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/roblox-free-robux-trade-m-programme-promocom_GM431946152.pdfIn PDF document text
    • http://www.perpusffup.or.id/repository/game-coin-master-hack_GM406889139.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_off00002fc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC4 22536 bytes
SHA-256: 9270a5a85f26034bae383de573d0fa5b99894edb715b2149380316f3fbd36677
font_01_sfnt_off00006221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6221 19224 bytes
SHA-256: d71594fca0192bd273031894e38a2e55de5fc33ad8b6f27101e55e65b2d4448e

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