Malicious PDF — malware analysis report

Static analysis result for SHA-256 a60eb2bb60705050…

MALICIOUS

PDF

42.1 KB Created: 2021-05-11 02:45:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f07d4e7d9cd2ad93710662d718663ea2 SHA-1: 1582e462eeea9f064199f2e22487c155a2b83c45 SHA-256: a60eb2bb607050509454590084c1111e0806d98c3647fc3d75bfc6499f2a2ba2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that are identified as lures for game hacks and free spins. The primary link, 'https://netcdn.xyz/app/406889139/coin-master-free-spin-trick-game-hack', suggests a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a malicious intent to redirect users to potentially harmful websites.

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-spin-trick-game-hack PDF link annotation
    • http://www.lovecraftiana.com.ar/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/free-spins-for-coin-master-that-work_GM406889139.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/www-coinmaster_GM406889139.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/how-to-get-free-spins-on-coin-master-android_GM406889139.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/demon-roblox_GM431946152.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/coin-master-game-download-free_GM406889139.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://www.lovecraftiana.com.ar/images/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000470c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x470C 26116 bytes
SHA-256: f695afb4ee73e8006ad0af1b42d7eb9e2cb1b1f34bfaed17a71cd17dbd70abdd
font_01_sfnt_off000082d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82D1 18056 bytes
SHA-256: 54328088f56ee84842563079cfbb4138b7af9e8e3dfce622dd41e9898fc344b8

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