Malicious PDF — malware analysis report

Static analysis result for SHA-256 262ce90affb58343…

MALICIOUS

PDF

32.7 KB Created: 2021-06-19 10:15:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 2d074d417354b1487ee9abb4dfbcdf57 SHA-1: ebe7d162428d77771a109cccb02539c662e31293 SHA-256: 262ce90affb58343757997b3546943b1d0fd8de5bf8d4f1d98e1426e765f31f8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/406889139/coin-master-spin-hack-link-game-hack PDF link annotation
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/how-to-look-like-a-hacker-in-roblox-with-rubux_GM431946152.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/free-robux-real-working_GM431946152.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spin-best-link_GM406889139.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/roblox-skin-free_GM431946152.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/free-items-on-roblox-for-pc_GM431946152.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/113-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/good-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/roblox-robux-hack-v1-34_GM431946152.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-robux-on-a-samsung-phone_GM431946152.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/pokemon-go-free-yamask_GM1094591345.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/haktuts-coin-master-free-spin-link-today_GM406889139.pdfIn PDF document text
    • https://www.albrighteducationcentre.co.uk/admin/ckfinder/userfiles/files/free-stuff-on-roblox_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_off00002fae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAE 21044 bytes
SHA-256: c8203e6f151b483aed17a41101e1bcf5ea4acae4100cf0a22d608b332fc24f92
font_01_sfnt_off00005d2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2C 18180 bytes
SHA-256: a132cedd825d849e0d721dfbb1ea0ac908be68f445a4640ebf6ea6c953a82746

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