Malicious PDF — malware analysis report

Static analysis result for SHA-256 d76304bf7c4265e6…

MALICIOUS

PDF

41.4 KB Created: 2021-05-16 01:34:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: d6b7571c4385e507db86d66c37b41012 SHA-1: 28a9c672d4fc60f58104f73461b35ff44aea4a5d SHA-256: d76304bf7c4265e68e97557db9502756230794e00463ddc66dd805c0e4898f04
82 Risk Score

Malware Insights

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

The PDF document contains a high-severity heuristic firing for a game hack redirect lure, pointing to a URL that promises cheats for Coin Master. The document body and numerous extracted URLs reinforce this theme, suggesting a social engineering tactic to trick users into visiting potentially malicious sites. No scripts were extracted from this sample, but the embedded links are the primary indicators of malicious intent.

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-cheat-to-get-free-spins-game-hack PDF link annotation
    • http://www.flotom.at/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://www.flotom.at/images/coin-master-fan-club_GM406889139.pdfIn PDF document text
    • http://www.flotom.at/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.flotom.at/images/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • http://www.flotom.at/images/daily-free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.flotom.at/images/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
    • http://www.flotom.at/images/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://www.flotom.at/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.flotom.at/images/coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.flotom.at/images/free-executor-roblox_GM431946152.pdfIn PDF document text
    • http://www.flotom.at/images/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://www.flotom.at/images/coin-master-link-app_GM406889139.pdfIn PDF document text
    • http://www.flotom.at/images/synapse-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://www.flotom.at/images/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://www.flotom.at/images/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.flotom.at/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://www.flotom.at/images/free-unlimited-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.flotom.at/images/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://www.flotom.at/images/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • http://www.flotom.at/images/coin-master-mod-apk-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
font_00_sfnt_off00004845.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4845 25064 bytes
SHA-256: d82393d00bce3bcba85a4425846839e9befceb97ea6db39591f4142872e649e3
font_01_sfnt_off00008039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8039 18052 bytes
SHA-256: 99031f52a6b201c4974ba9c8c658527515774d5dd8e7ce964a5a3577c3d49f57

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