Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfeb208edfa11388…

MALICIOUS

PDF

34.6 KB Created: 2021-06-25 23:36:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a0d8dbf34b1b444c2ce9125f1df8a6f5 SHA-1: 69e1bfc85172c7a087991c589394f9403c6378fb SHA-256: dfeb208edfa11388695a7b5da4bd03d2c0930f5d10e7d6e4d0a4ab0a3ac92d00
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free game accounts and hacks, directing users to a suspicious URL. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs suggests an attempt to redirect users to a malicious site for further exploitation. No scripts were extracted from this sample.

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/free-acounts-on-roblox-that-have-robux-game-hack PDF link annotation
    • http://vetmed.fkh.unair.ac.id/repository/rc7-download-free-roblox_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/how-to-get-hack-on-arsenal-roblox_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/roblox-free-robux-app_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/robux-gratis_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-free-spins--spins_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/tiktok-free-fans_GM835599320.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-spins-coin-master-links-thursday-november-28-2021_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/roblox-superhero-tycoon-cheats_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-roblox-hackingcom_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/how-can-you-get-free-robux-on-laptop-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_off00002f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9A 22888 bytes
SHA-256: 2832aa26ffce0fdc42e94597ab9247d5de720ae9b1e456ef441b54e48a26e422
font_01_sfnt_off000061f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F2 19176 bytes
SHA-256: e156c98e6241aed6c7f0379de2989a30e7f9449438824244da1d780e3f156bc4

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