Malicious PDF — malware analysis report

Static analysis result for SHA-256 93a0899f9e862453…

MALICIOUS

PDF

35.5 KB Created: 2021-06-18 08:19:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 0d591076af13adcfc398c496388cff27 SHA-1: 3136a8e047b98cb64dd1074f24e9718dd05b96c3 SHA-256: 93a0899f9e8624539102bc27438f9ac541d19c7817c7ac2411e1a0c039fc998d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and lures related to game hacks and free currency generators, specifically for Robux and Coin Master. The primary link, http://netcdn.co/app/431946152/how-to-get-free-robux-in-two-minutes-game-hack, is flagged as a high-risk redirector. While no scripts were explicitly extracted, the presence of embedded URLs and the 'GAME_HACK_REDIRECT_LURE' heuristic strongly suggest a phishing or malware distribution attempt.

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 http://netcdn.co/app/431946152/how-to-get-free-robux-in-two-minutes-game-hack PDF link annotation
    • http://zagorjeadventureteam.hr/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/tiktok-free-jeton_GM835599320.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/denis-how-to-get-free-robux-im-not-even-kidding_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-make-a-free-vip-server-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-do-you-get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-hack-generator-tool_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-robux-without-verification-or-survey_GM431946152.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
font_00_sfnt_off00003266.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3266 22608 bytes
SHA-256: cf4a941f9c6e1c0d16373d829eccfc1a4f2b18ddb060dbcf8a6b8d842353da39
font_01_sfnt_off000064ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64EF 19300 bytes
SHA-256: 8b002cf8aff75d04289672a55363aba6cde81ec92139a5465ba06306f22bc87d

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