Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b2a74c104daa144…

MALICIOUS

PDF

43.0 KB Created: 2021-05-12 17:34:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 482e1aaa69c505b34b06b1416494c29a SHA-1: 71ce095b09c5a3a328c8cbf9c5a3d4c9f7fb042e SHA-256: 8b2a74c104daa14469455b5af0f69b5a0c933a982c62071334861b5d0e24314e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a game hack lure, specifically for Coin Master. The embedded URL, 'https://netcdn.xyz/app/406889139/coin-master-free-spins-ios-app-game-hack', likely serves as a redirector to malicious content or a phishing page. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering tactic to trick users into visiting a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-free-spins-ios-app-game-hack PDF link annotation
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/install-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/robux-generator-com_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/free-admin-roblox_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/getrobux-ninja_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/free-spin-today-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/free-shields-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/optifine-pe_GM479516143.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/free-pe_GM479516143.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learningmts.muallimienbogor.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-hack_GM406889139.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
stream_003_off00004dc6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DC6 24932 bytes
SHA-256: f58e6026486de804dc27aa3b012299329204588655702573f09c5ea510f9331d
font_01_sfnt_off00008719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8719 17884 bytes
SHA-256: dc4be9eca4043c451860dc040d84e7fc0527576754fa5be74ed410eba2640189

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