Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebe14b84853d2c2a…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 04:51:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c59ea75fb84917aee1896641c3102906 SHA-1: ecd9e5054fd4295a66f46ccc3c3c87d4f49fd389 SHA-256: ebe14b84853d2c2ab288b458e90fc96f2f3a00a984d426d83c5e230227c31956
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/431946152/roblox-girl-avatar-game-hack PDF link annotation
    • http://www.library.umbjm.ac.id/repository/infinite-jump-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-get-2021-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-shield-hack_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/fbchampion_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-free-online-game_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-do-you-get-free-pet-food-in-coin-master_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_off00003089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3089 22784 bytes
SHA-256: c3fc918abc33f41c7a0c295de2e20eb0c5fba8e05bdc2b9d1a1abc10daa6e9a2
font_01_sfnt_off0000630d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630D 18824 bytes
SHA-256: a049bc211159218bd83ce46d7963f6a91c240f948409f01e9ddd8b42dda3a560

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