Malicious PDF — malware analysis report

Static analysis result for SHA-256 25c0c3948e9e2ab7…

MALICIOUS

PDF

34.9 KB Created: 2021-06-21 17:32:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 68c06bfd4b9dd3d6b9294fa98968985e SHA-1: b981e22a29d97acdec381d49fb5e41f21ff40cbe SHA-256: 25c0c3948e9e2ab79b29a866f751a47f7b7429b13c3f2ceaf8968d0f2c4c1ba1
82 Risk Score

Malware Insights

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

The PDF contains a high-confidence heuristic indicating it links to a game hack lure, specifically pointing to 'minecraft-bedrock-free-game-hack'. The document body also contains this URL, reinforcing the lure. This suggests the PDF is designed to trick users into visiting a site that likely hosts malware or phishing content.

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/479516143/minecraft-bedrock-free-game-hack PDF link annotation
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/what-do-roblox-points-do_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/free-games-like-roblox_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/how-do-you-get-free-daily-spins-on-coin-master_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
font_00_sfnt_off0000349d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x349D 22028 bytes
SHA-256: 6a98804ea6a02a81e75aea93cbb8ef3cd04f877c7d486207824f95a8ce8459b7
font_01_sfnt_off00006513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6513 18560 bytes
SHA-256: 44275154cdcbe071c511b06e860c763300f9c8e5a1952ff2f2d54649f622e79e

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