Malicious PDF — malware analysis report

Static analysis result for SHA-256 600fa8bd3918f333…

MALICIOUS

PDF

41.2 KB Created: 2021-05-13 03:06:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 758cda97bbe2d0fd1a98d3d73d5afe9c SHA-1: 1894f79d54d5e54e25ee74ce0a4194fce09217db SHA-256: 600fa8bd3918f33348fdb294ed9d2994dcad06e491a1e51cd42c6652750805a2
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links and references to game hacks and free currency generators for popular games like Coin Master and Roblox. The primary lure is the promise of 'free coin master hack no verification', directing users to a suspicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a phishing or malware distribution attempt, likely using embedded JavaScript to facilitate redirection or exploit vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/free-coin-master-hack-no-verification-game-hack PDF link annotation
    • http://jkcoaching.nl/images/free-robux-live_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/roblox-devil_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://jkcoaching.nl/images/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/robux-page_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/coin-master-heaven-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://jkcoaching.nl/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • http://jkcoaching.nl/images/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/does-roblox-premium-expire_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
    • http://jkcoaching.nl/images/microsoft-roblox-rewards_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://jkcoaching.nl/images/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://jkcoaching.nl/images/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • http://jkcoaching.nl/images/coin-master-hack-spins-free_GM406889139.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
stream_003_off00004823.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4823 24852 bytes
SHA-256: 1139028e45f70b767930d9c33b0e379ed8050d9c3c2f0159424241801d169c9b
font_01_sfnt_off00007f9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F9F 18016 bytes
SHA-256: 22df04c4dacbc852f4ecaf83adb1826ed6293343c5161e377e09b669fc2092ee

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