Malicious PDF — malware analysis report

Static analysis result for SHA-256 117d0bfa2653f318…

MALICIOUS

PDF

47.3 KB Created: 2021-05-15 23:00:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 30b83724bb6ca7cbfcfb9161383e7edc SHA-1: 17440050d760557e6ac23a819e7a8ca9bc86b197 SHA-256: 117d0bfa2653f3181a5c88b81e0cfbc280577c2ed9fcdacd12d5bf738ce6c49f
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 0.9013

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 https://netcdn.xyz/app/431946152/how-can-you-get-free-robux-game-hack PDF link annotation
    • http://suaedy-library.net/repository/coin-master-free-spins-moonactive_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-assassin_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-spin-links-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-rules_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/instantrobux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/easy-robux-com_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-free-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000484b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x484B 28064 bytes
SHA-256: cf11a086fe74c3d0e33b6a48272a68e90d935d34b84863802610a9e1ec51d92d
font_01_sfnt_off00008849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8849 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off0000955a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x955A 18672 bytes
SHA-256: b25769fe22a84510cbe545ecc77c61068e90e31ebb29fb78564d629eaf3a10b0