Malicious PDF — malware analysis report

Static analysis result for SHA-256 7de47a0566a84ed6…

MALICIOUS

PDF

35.1 KB Created: 2021-07-04 04:25:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 081ba7d06963f58891d0d8b3cb14d4c8 SHA-1: efa85ee56bb592e4956255f90f9b48d15b6bbf8b SHA-256: 7de47a0566a84ed6a0acf215b44597fe38095f625727392c3074b85046e83698
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.tw/app/479516143/is-minecraft-realms-free-game-hack PDF link annotation
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-4-all-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/money-woodcuting-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/hack-ultimate-driving-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-robux-app-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/roblox-download-free-for-pc-full-game_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-hacks-for-roblox-apoc-rising-for-windows-7-pro_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/roblox-hack-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/how-to-hack-models-into-roblox-tshirts_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-robux-generator-youtube_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/fast-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/music-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-robux-codes-online_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3635 22064 bytes
SHA-256: b1110808f96a6c9c7e3af24f48b129d5857c2d1ab30cefb8f8bc077de1b863e1
font_01_sfnt_off0000671e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x671E 18192 bytes
SHA-256: 3fdf6c7900c76153a6c8ba7010afe065a028b37808fae2d556e2bfe86359ad32

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