Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ac4d3809014be9e…

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 14:32:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5646c5ba1ece043ca7adc41026382fb9 SHA-1: 1265775a788939605aed51bea43d462c2da52187 SHA-256: 9ac4d3809014be9ede44effb1b149360b7900472e956fdef709751a218d782a2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, with a primary URL identified as a redirector for game hacks and free generators. This lure is designed to entice users to click through, likely leading to a malicious download or further compromise. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to deliver a payload or redirect to 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.tw/app/431946152/roblox-com-games-referrer-roblox-player-game-hack PDF link annotation
    • http://library.itekes-bali.ac.id/repository/roblox-robux-free-codes-android-s9_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/lemonade-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/epic-turtle-plays-free-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-play-for-free-online-no-download_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/new-code-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-elemental-wars-hack_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-obby-meaining_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-one-piece-millennium-stats-hack-script_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-site_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-earn-free-robux-legally_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/como-hackear-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-good-roblox-exploit_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-hack-cheat-engine-download_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_off00003143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3143 21960 bytes
SHA-256: f26b50aad087277ab72e6c96eecd5c66ca7a7082965e29dce0bb7d4a0afafe86
font_01_sfnt_off000061ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CE 19080 bytes
SHA-256: 0ac16e341a8e5aa813c5f5085e0ee35b0e841b2cb885637185c36855aa31181f

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