Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4db9c47487f86d5…

MALICIOUS

PDF

44.3 KB Created: 2021-05-11 23:17:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 66e372972735a4e5ac943f6967e2a3a0 SHA-1: 40dd4ebb6ee857cd7df9f5d9e2af7acd55e7601e SHA-256: e4db9c47487f86d56b60f6590a3617c6bc3c106f299a96d0ed2ddf68efa83696
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and game hacks, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a phishing or scam attempt designed to redirect users to potentially harmful content.

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 https://netcdn.xyz/app/431946152/get-free-robux-no-verification-game-hack PDF link annotation
    • https://www.yatrikathmandusuite.com/userfiles/files/games-like-minecraft-but-free_GM479516143.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/coin-master-hack-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/coin-master-level-4_GM406889139.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/link-coin-master_GM406889139.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/coin-master-hack-without-verification-code-2021_GM406889139.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/rewards-roblox_GM431946152.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://www.yatrikathmandusuite.com/userfiles/files/robux-free-com_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_off00004a45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A45 27616 bytes
SHA-256: c7bb2aefd6eae08333f4f7e7e20241229cc99ce3e60f0eb8665539821104c459
font_01_sfnt_off000089f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F6 18600 bytes
SHA-256: 9922d9be899d889309b30d551f0ca0ad5440aa2f545e895e218caf9f3be39a86

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