Malicious PDF — malware analysis report

Static analysis result for SHA-256 55c88638095f8fc6…

MALICIOUS

PDF

31.5 KB Created: 2021-07-20 16:40:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 95051153acae544255edb155a7e4b4a5 SHA-1: b9291c0e215bdcdb09e0ae51c8c9ff65d447ff18 SHA-256: 55c88638095f8fc69392b72d0641e36688296f1c9287fc49fcd8bba614659be2
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a fake CAPTCHA lure and links to external websites offering game hacks and generators. The document body explicitly mentions 'How To Get Minecraft For Free On Phone' and includes a 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' call to action, strongly suggesting a phishing or scam attempt. The embedded URLs likely lead to further malicious content or exploit delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9893

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.tw/app/479516143/how-to-get-minecraft-for-free-on-phone-game-hack PDF link annotation
    • https://depilhome-fr.fr/images/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://depilhome-fr.fr/images/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • https://depilhome-fr.fr/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://depilhome-fr.fr/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://depilhome-fr.fr/images/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • https://depilhome-fr.fr/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://depilhome-fr.fr/images/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://depilhome-fr.fr/images/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • https://depilhome-fr.fr/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://depilhome-fr.fr/images/buy-tiktok-followers-free_GM835599320.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_off0000286d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x286D 22172 bytes
SHA-256: 2b163fa3f1643a891f548fd56d9aabaf2dae2993fd14246e6e02ae1cba4bf638
font_01_sfnt_off0000597d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x597D 18192 bytes
SHA-256: 90b6a34edb34d309cd556a6b23817db9766b775643cedc81c4ce7203f03c64d4

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