Malicious PDF — malware analysis report

Static analysis result for SHA-256 e965937aca30d240…

MALICIOUS

PDF

34.1 KB Created: 2021-07-02 03:59:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9e11aa0ddacaebe6a5492189cb94456e SHA-1: ebe43dc731176f5714aa0d74b017d8134d34d994 SHA-256: e965937aca30d240f58ab550de9b005574a391bc603a6227d9854b701cc0b74d
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/431946152/how-to-hack-robux-on-roblox-download-game-hack PDF link annotation
    • https://vieclamjapan.com/upload/files/free-badges-roblox_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/pokemon-go-free-wallhack_GM1094591345.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/master-coin-free-link_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-get-any-roblox-item-for-free-2021_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/pokemon-go-free-808-pokedex_GM1094591345.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/robux-miner_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/hacks-minecraft_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coin-master-hack-spins-download_GM406889139.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_off00002dd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD6 22232 bytes
SHA-256: 9b13c461132d6d210bb5d2575052dbbcb66561fa12228be2d116d85f3236c4db
font_01_sfnt_off00005f34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F34 19304 bytes
SHA-256: fcb9e6798cd33a5d7674cccce65aba57ee83124012fa75ec79a4dbf3fcef8836

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