Malicious PDF — malware analysis report

Static analysis result for SHA-256 df2e7bb8c435a3ef…

MALICIOUS

PDF

34.7 KB Created: 2021-06-30 08:39:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c1f8f4ccfc5e1b065dff627e44dead1d SHA-1: debd9b5d5db0edd9c652d3b9e2d0a25cd9591bab SHA-256: df2e7bb8c435a3ef97e453e72e08ccf4894a7087528cf535518e7b076227d52a
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-any-server-on-roblox-game-hack PDF link annotation
    • http://www.pspmrsmkkb.com/webopac/repository/cheat-to-make-my-damage-higher-on-da-hood-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/minecraft-client_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/minecraft-items_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-pokemon-brick-bronze-cheat-to-level-up-faster_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/coin-master-free-spins-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/hack-booga-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-games-getting-hacked_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/como-descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/coin-master-links-free-spins_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_off00002f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F97 22596 bytes
SHA-256: 2345b9c6337fcd2356ce3516e7c0151a871b7711b634d01b91a0525b69e8ca64
font_01_sfnt_off00006237.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6237 19112 bytes
SHA-256: d08b5f269b22b55b6558153554018598028a4ae69d754f5c1ca20bde84a8c9bb

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