Malicious PDF — malware analysis report

Static analysis result for SHA-256 4707783027fe871b…

MALICIOUS

PDF

34.2 KB Created: 2021-06-18 11:58:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 5e571c2414b470528da9f139e485615e SHA-1: 301391a094348da7bb9a349b4ff98c969c4da84c SHA-256: 4707783027fe871b5948f27106796dc43fbd3fc5e758bc56a35f9c7c3f0cf4e3
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 0.9984

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/descargar-hack-de-fly-para-roblox-game-hack PDF link annotation
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/roblox-2021_GM431946152.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/corn-master_GM406889139.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/coin-master-hack-pro-gamers-com_GM406889139.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/how-to-hack-assassin-roblox_GM431946152.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/toolbox-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/websites-for-robux_GM431946152.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/hack-de-anonymous-roblox_GM431946152.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/hacker-destroza-la-ciudad-roblox-pokemon-gomiannn_GM431946152.pdfIn PDF document text
    • https://sinos.net/_common/admin/scripts/ckfinder/userfiles/files/minecraft-free-download-iphone_GM479516143.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_off00002f8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8B 21916 bytes
SHA-256: 377f85984906fc5c5aa3a05b2cee99e22d802f085431460110a4ff8af7346cef
font_01_sfnt_off00005ff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF5 19324 bytes
SHA-256: e81779f998ffca83302be37f960999405633dc0110dcb36b0c34aed3e83c9d1b

Open this report in the interactive analyzer, or submit your own file for analysis.