Malicious PDF — malware analysis report

Static analysis result for SHA-256 d564e8e69afb878f…

MALICIOUS

PDF

43.3 KB Created: 2021-05-16 06:33:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 739a49c8972761c16db69f708ea2c303 SHA-1: 1b7de00a9fa903c0218957f93707b1d69994e3ba SHA-256: d564e8e69afb878fddeea593753b052aacd03d16b93e2bb5397be7ff7b0d9913
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a high-confidence heuristic indicating it links to a game hack redirector, specifically mentioning 'coin-master-code-for-free-spins'. The document body and numerous extracted URLs reinforce this lure, directing users to sites promising game cheats or free spins. This suggests a social engineering tactic to drive traffic to potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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-code-for-free-spins-game-hack PDF link annotation
    • https://www.xenonsvjetla.com/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/wurst-hacks_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-foxy-food_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-shields-coin-master_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-robux-download_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-hack-reddit_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004731.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4731 24096 bytes
SHA-256: c558f5df72fcaae0d7c1fdb72ca7ac6faef8ec7dc0323f750db677adce8f2597
font_01_sfnt_off00007d27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D27 2920 bytes
SHA-256: 601c50867a41b9362538ff18e5f9479a0f9badf698aaf1eb7e88469c11719db7
font_02_sfnt_off00008740.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8740 18060 bytes
SHA-256: 4a03a9d44c164768d834a7fabe993e3d55008b9c253aea1e1300b795f74bd62a

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