Malicious PDF — malware analysis report

Static analysis result for SHA-256 019adc536ad67fe1…

MALICIOUS

PDF

34.7 KB Created: 2021-06-20 07:35:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1949ee1acaf257ecddc8fa893e88d3ac SHA-1: 596f8ac119724c1d094bf4f6b6278690b87d3b30 SHA-256: 019adc536ad67fe145bc2651f4a781da6b0169a4cb7d2f0392d0a17ee84a0171
82 Risk Score

Malware Insights

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

The PDF document uses a lure related to game hacking and free generators to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/how-to-use-game-hacker-on-roblox-game-hack, is identified as a redirector to a malicious site. The document's content and heuristics strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

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-use-game-hacker-on-roblox-game-hack PDF link annotation
    • http://safari-crimea.com/images/free-appsfor-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/is-minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://safari-crimea.com/images/hacks-for-trading-pet-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/wurst-client-download_GM479516143.pdfIn PDF document text
    • http://safari-crimea.com/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/roblox40com-robux_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/get-800-free-robux_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/how-to-get-free-robux-bc-only_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/roblox-cheats-to-be-able-to-say-numbers_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/coin-master-strategy_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/free-robux-no-download-or-human-verification_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/free-robux-generator-no-human-verification-and-no-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_off000031ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31AC 22004 bytes
SHA-256: 162bccc36ff202d8816be5d113c2d8cf9ee19cd035c25d07a6ceda721cc192f2
font_01_sfnt_off0000626d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x626D 19080 bytes
SHA-256: ee67d5b06c9d43a23885c7b6160b59fa64ddf6a5fa87590d74a3cf375f36d5bf

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