Malicious PDF — malware analysis report

Static analysis result for SHA-256 be6b6d6235e33905…

MALICIOUS

PDF

44.3 KB Created: 2021-06-03 07:16:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: abbf03b15fc61bc85d3abd85ca4fdaca SHA-1: 5e91f4be17e7c6dff3741774009d1b9e70f94e32 SHA-256: be6b6d6235e33905740f8c1d04edfadc4ee16d5964a301d73199805644b71319
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing indicating it links to a game hack lure, specifically directing users to 'https://netcdn.online/app/406889139/coin-master-hack-root-game-hack'. This suggests the document's primary purpose is to trick users into visiting a potentially malicious website. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a social engineering attack, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/coin-master-hack-root-game-hack PDF link annotation
    • http://lib.teknik.unimal.ac.id/repository/pubg-uc-shop-bd_GM1330123889.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/static-moonactive_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/fb-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-coins-for-flip-master_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/static-moonactive-net_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/hacks-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-verification_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/tiktok-free-vs-premium_GM835599320.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/how-to-hack-peoples-roblox-accounts_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
stream_004_off00005153.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5153 26604 bytes
SHA-256: 49850197e628caded2a8881d8be35192a1f7b01a20384f2c6424bc70b58086cb
font_01_sfnt_off00008c61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C61 17716 bytes
SHA-256: 1caeca20eb7b531e957ca6f618ca954c404f41c3b516abc25a21f96e81028257

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